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Add "compatibility" property for zpool feature sets
[zfs.git] / cmd / zdb / zdb.c
blobf7a6e17d70e81cede7f484edd616e428d1bbf8b5
1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2011, 2019 by Delphix. All rights reserved.
25 * Copyright (c) 2014 Integros [integros.com]
26 * Copyright 2016 Nexenta Systems, Inc.
27 * Copyright (c) 2017, 2018 Lawrence Livermore National Security, LLC.
28 * Copyright (c) 2015, 2017, Intel Corporation.
29 * Copyright (c) 2020 Datto Inc.
30 * Copyright (c) 2020, The FreeBSD Foundation [1]
31 *
32 * [1] Portions of this software were developed by Allan Jude
33 * under sponsorship from the FreeBSD Foundation.
34 * Copyright (c) 2021 Allan Jude
35 */
36
37 #include <stdio.h>
38 #include <unistd.h>
39 #include <stdlib.h>
40 #include <ctype.h>
41 #include <sys/zfs_context.h>
42 #include <sys/spa.h>
43 #include <sys/spa_impl.h>
44 #include <sys/dmu.h>
45 #include <sys/zap.h>
46 #include <sys/fs/zfs.h>
47 #include <sys/zfs_znode.h>
48 #include <sys/zfs_sa.h>
49 #include <sys/sa.h>
50 #include <sys/sa_impl.h>
51 #include <sys/vdev.h>
52 #include <sys/vdev_impl.h>
53 #include <sys/metaslab_impl.h>
54 #include <sys/dmu_objset.h>
55 #include <sys/dsl_dir.h>
56 #include <sys/dsl_dataset.h>
57 #include <sys/dsl_pool.h>
58 #include <sys/dsl_bookmark.h>
59 #include <sys/dbuf.h>
60 #include <sys/zil.h>
61 #include <sys/zil_impl.h>
62 #include <sys/stat.h>
63 #include <sys/resource.h>
64 #include <sys/dmu_send.h>
65 #include <sys/dmu_traverse.h>
66 #include <sys/zio_checksum.h>
67 #include <sys/zio_compress.h>
68 #include <sys/zfs_fuid.h>
69 #include <sys/arc.h>
70 #include <sys/arc_impl.h>
71 #include <sys/ddt.h>
72 #include <sys/zfeature.h>
73 #include <sys/abd.h>
74 #include <sys/blkptr.h>
75 #include <sys/dsl_crypt.h>
76 #include <sys/dsl_scan.h>
77 #include <sys/btree.h>
78 #include <zfs_comutil.h>
79 #include <sys/zstd/zstd.h>
80
81 #include <libnvpair.h>
82 #include <libzutil.h>
83
84 #include "zdb.h"
85
86 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
87 zio_compress_table[(idx)].ci_name : "UNKNOWN")
88 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
89 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
90 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \
91 (idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA ? \
92 DMU_OT_ZAP_OTHER : \
93 (idx) == DMU_OTN_UINT64_DATA || (idx) == DMU_OTN_UINT64_METADATA ? \
94 DMU_OT_UINT64_OTHER : DMU_OT_NUMTYPES)
95
96 static char *
97 zdb_ot_name(dmu_object_type_t type)
98 {
99 if (type < DMU_OT_NUMTYPES)
100 return (dmu_ot[type].ot_name);
101 else if ((type & DMU_OT_NEWTYPE) &&
102 ((type & DMU_OT_BYTESWAP_MASK) < DMU_BSWAP_NUMFUNCS))
103 return (dmu_ot_byteswap[type & DMU_OT_BYTESWAP_MASK].ob_name);
104 else
105 return ("UNKNOWN");
106 }
107
108 extern int reference_tracking_enable;
109 extern int zfs_recover;
110 extern unsigned long zfs_arc_meta_min, zfs_arc_meta_limit;
111 extern int zfs_vdev_async_read_max_active;
112 extern boolean_t spa_load_verify_dryrun;
113 extern int zfs_reconstruct_indirect_combinations_max;
114 extern int zfs_btree_verify_intensity;
115
116 static const char cmdname[] = "zdb";
117 uint8_t dump_opt[256];
118
119 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
120
121 uint64_t *zopt_metaslab = NULL;
122 static unsigned zopt_metaslab_args = 0;
123
124 typedef struct zopt_object_range {
125 uint64_t zor_obj_start;
126 uint64_t zor_obj_end;
127 uint64_t zor_flags;
128 } zopt_object_range_t;
129 zopt_object_range_t *zopt_object_ranges = NULL;
130 static unsigned zopt_object_args = 0;
131
132 static int flagbits[256];
133
134 #define ZOR_FLAG_PLAIN_FILE 0x0001
135 #define ZOR_FLAG_DIRECTORY 0x0002
136 #define ZOR_FLAG_SPACE_MAP 0x0004
137 #define ZOR_FLAG_ZAP 0x0008
138 #define ZOR_FLAG_ALL_TYPES -1
139 #define ZOR_SUPPORTED_FLAGS (ZOR_FLAG_PLAIN_FILE | \
140 ZOR_FLAG_DIRECTORY | \
141 ZOR_FLAG_SPACE_MAP | \
142 ZOR_FLAG_ZAP)
143
144 #define ZDB_FLAG_CHECKSUM 0x0001
145 #define ZDB_FLAG_DECOMPRESS 0x0002
146 #define ZDB_FLAG_BSWAP 0x0004
147 #define ZDB_FLAG_GBH 0x0008
148 #define ZDB_FLAG_INDIRECT 0x0010
149 #define ZDB_FLAG_RAW 0x0020
150 #define ZDB_FLAG_PRINT_BLKPTR 0x0040
151 #define ZDB_FLAG_VERBOSE 0x0080
152
153 uint64_t max_inflight_bytes = 256 * 1024 * 1024; /* 256MB */
154 static int leaked_objects = 0;
155 static range_tree_t *mos_refd_objs;
156
157 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *,
158 boolean_t);
159 static void mos_obj_refd(uint64_t);
160 static void mos_obj_refd_multiple(uint64_t);
161 static int dump_bpobj_cb(void *arg, const blkptr_t *bp, boolean_t free,
162 dmu_tx_t *tx);
163
164 typedef struct sublivelist_verify {
165 /* all ALLOC'd blkptr_t in one sub-livelist */
166 zfs_btree_t sv_all_allocs;
167
168 /* all FREE'd blkptr_t in one sub-livelist */
169 zfs_btree_t sv_all_frees;
170
171 /* FREE's that haven't yet matched to an ALLOC, in one sub-livelist */
172 zfs_btree_t sv_pair;
173
174 /* ALLOC's without a matching FREE, accumulates across sub-livelists */
175 zfs_btree_t sv_leftover;
176 } sublivelist_verify_t;
177
178 static int
179 livelist_compare(const void *larg, const void *rarg)
180 {
181 const blkptr_t *l = larg;
182 const blkptr_t *r = rarg;
183
184 /* Sort them according to dva[0] */
185 uint64_t l_dva0_vdev, r_dva0_vdev;
186 l_dva0_vdev = DVA_GET_VDEV(&l->blk_dva[0]);
187 r_dva0_vdev = DVA_GET_VDEV(&r->blk_dva[0]);
188 if (l_dva0_vdev < r_dva0_vdev)
189 return (-1);
190 else if (l_dva0_vdev > r_dva0_vdev)
191 return (+1);
192
193 /* if vdevs are equal, sort by offsets. */
194 uint64_t l_dva0_offset;
195 uint64_t r_dva0_offset;
196 l_dva0_offset = DVA_GET_OFFSET(&l->blk_dva[0]);
197 r_dva0_offset = DVA_GET_OFFSET(&r->blk_dva[0]);
198 if (l_dva0_offset < r_dva0_offset) {
199 return (-1);
200 } else if (l_dva0_offset > r_dva0_offset) {
201 return (+1);
202 }
203
204 /*
205 * Since we're storing blkptrs without cancelling FREE/ALLOC pairs,
206 * it's possible the offsets are equal. In that case, sort by txg
207 */
208 if (l->blk_birth < r->blk_birth) {
209 return (-1);
210 } else if (l->blk_birth > r->blk_birth) {
211 return (+1);
212 }
213 return (0);
214 }
215
216 typedef struct sublivelist_verify_block {
217 dva_t svb_dva;
218
219 /*
220 * We need this to check if the block marked as allocated
221 * in the livelist was freed (and potentially reallocated)
222 * in the metaslab spacemaps at a later TXG.
223 */
224 uint64_t svb_allocated_txg;
225 } sublivelist_verify_block_t;
226
227 static void zdb_print_blkptr(const blkptr_t *bp, int flags);
228
229 static int
230 sublivelist_verify_blkptr(void *arg, const blkptr_t *bp, boolean_t free,
231 dmu_tx_t *tx)
232 {
233 ASSERT3P(tx, ==, NULL);
234 struct sublivelist_verify *sv = arg;
235 char blkbuf[BP_SPRINTF_LEN];
236 zfs_btree_index_t where;
237 if (free) {
238 zfs_btree_add(&sv->sv_pair, bp);
239 /* Check if the FREE is a duplicate */
240 if (zfs_btree_find(&sv->sv_all_frees, bp, &where) != NULL) {
241 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp,
242 free);
243 (void) printf("\tERROR: Duplicate FREE: %s\n", blkbuf);
244 } else {
245 zfs_btree_add_idx(&sv->sv_all_frees, bp, &where);
246 }
247 } else {
248 /* Check if the ALLOC has been freed */
249 if (zfs_btree_find(&sv->sv_pair, bp, &where) != NULL) {
250 zfs_btree_remove_idx(&sv->sv_pair, &where);
251 } else {
252 for (int i = 0; i < SPA_DVAS_PER_BP; i++) {
253 if (DVA_IS_EMPTY(&bp->blk_dva[i]))
254 break;
255 sublivelist_verify_block_t svb = {
256 .svb_dva = bp->blk_dva[i],
257 .svb_allocated_txg = bp->blk_birth
258 };
259
260 if (zfs_btree_find(&sv->sv_leftover, &svb,
261 &where) == NULL) {
262 zfs_btree_add_idx(&sv->sv_leftover,
263 &svb, &where);
264 }
265 }
266 }
267 /* Check if the ALLOC is a duplicate */
268 if (zfs_btree_find(&sv->sv_all_allocs, bp, &where) != NULL) {
269 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp,
270 free);
271 (void) printf("\tERROR: Duplicate ALLOC: %s\n", blkbuf);
272 } else {
273 zfs_btree_add_idx(&sv->sv_all_allocs, bp, &where);
274 }
275 }
276 return (0);
277 }
278
279 static int
280 sublivelist_verify_func(void *args, dsl_deadlist_entry_t *dle)
281 {
282 int err;
283 char blkbuf[BP_SPRINTF_LEN];
284 struct sublivelist_verify *sv = args;
285
286 zfs_btree_create(&sv->sv_all_allocs, livelist_compare,
287 sizeof (blkptr_t));
288
289 zfs_btree_create(&sv->sv_all_frees, livelist_compare,
290 sizeof (blkptr_t));
291
292 zfs_btree_create(&sv->sv_pair, livelist_compare,
293 sizeof (blkptr_t));
294
295 err = bpobj_iterate_nofree(&dle->dle_bpobj, sublivelist_verify_blkptr,
296 sv, NULL);
297
298 zfs_btree_clear(&sv->sv_all_allocs);
299 zfs_btree_destroy(&sv->sv_all_allocs);
300
301 zfs_btree_clear(&sv->sv_all_frees);
302 zfs_btree_destroy(&sv->sv_all_frees);
303
304 blkptr_t *e;
305 zfs_btree_index_t *cookie = NULL;
306 while ((e = zfs_btree_destroy_nodes(&sv->sv_pair, &cookie)) != NULL) {
307 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), e, B_TRUE);
308 (void) printf("\tERROR: Unmatched FREE: %s\n", blkbuf);
309 }
310 zfs_btree_destroy(&sv->sv_pair);
311
312 return (err);
313 }
314
315 static int
316 livelist_block_compare(const void *larg, const void *rarg)
317 {
318 const sublivelist_verify_block_t *l = larg;
319 const sublivelist_verify_block_t *r = rarg;
320
321 if (DVA_GET_VDEV(&l->svb_dva) < DVA_GET_VDEV(&r->svb_dva))
322 return (-1);
323 else if (DVA_GET_VDEV(&l->svb_dva) > DVA_GET_VDEV(&r->svb_dva))
324 return (+1);
325
326 if (DVA_GET_OFFSET(&l->svb_dva) < DVA_GET_OFFSET(&r->svb_dva))
327 return (-1);
328 else if (DVA_GET_OFFSET(&l->svb_dva) > DVA_GET_OFFSET(&r->svb_dva))
329 return (+1);
330
331 if (DVA_GET_ASIZE(&l->svb_dva) < DVA_GET_ASIZE(&r->svb_dva))
332 return (-1);
333 else if (DVA_GET_ASIZE(&l->svb_dva) > DVA_GET_ASIZE(&r->svb_dva))
334 return (+1);
335
336 return (0);
337 }
338
339 /*
340 * Check for errors in a livelist while tracking all unfreed ALLOCs in the
341 * sublivelist_verify_t: sv->sv_leftover
342 */
343 static void
344 livelist_verify(dsl_deadlist_t *dl, void *arg)
345 {
346 sublivelist_verify_t *sv = arg;
347 dsl_deadlist_iterate(dl, sublivelist_verify_func, sv);
348 }
349
350 /*
351 * Check for errors in the livelist entry and discard the intermediary
352 * data structures
353 */
354 /* ARGSUSED */
355 static int
356 sublivelist_verify_lightweight(void *args, dsl_deadlist_entry_t *dle)
357 {
358 sublivelist_verify_t sv;
359 zfs_btree_create(&sv.sv_leftover, livelist_block_compare,
360 sizeof (sublivelist_verify_block_t));
361 int err = sublivelist_verify_func(&sv, dle);
362 zfs_btree_clear(&sv.sv_leftover);
363 zfs_btree_destroy(&sv.sv_leftover);
364 return (err);
365 }
366
367 typedef struct metaslab_verify {
368 /*
369 * Tree containing all the leftover ALLOCs from the livelists
370 * that are part of this metaslab.
371 */
372 zfs_btree_t mv_livelist_allocs;
373
374 /*
375 * Metaslab information.
376 */
377 uint64_t mv_vdid;
378 uint64_t mv_msid;
379 uint64_t mv_start;
380 uint64_t mv_end;
381
382 /*
383 * What's currently allocated for this metaslab.
384 */
385 range_tree_t *mv_allocated;
386 } metaslab_verify_t;
387
388 typedef void ll_iter_t(dsl_deadlist_t *ll, void *arg);
389
390 typedef int (*zdb_log_sm_cb_t)(spa_t *spa, space_map_entry_t *sme, uint64_t txg,
391 void *arg);
392
393 typedef struct unflushed_iter_cb_arg {
394 spa_t *uic_spa;
395 uint64_t uic_txg;
396 void *uic_arg;
397 zdb_log_sm_cb_t uic_cb;
398 } unflushed_iter_cb_arg_t;
399
400 static int
401 iterate_through_spacemap_logs_cb(space_map_entry_t *sme, void *arg)
402 {
403 unflushed_iter_cb_arg_t *uic = arg;
404 return (uic->uic_cb(uic->uic_spa, sme, uic->uic_txg, uic->uic_arg));
405 }
406
407 static void
408 iterate_through_spacemap_logs(spa_t *spa, zdb_log_sm_cb_t cb, void *arg)
409 {
410 if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP))
411 return;
412
413 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
414 for (spa_log_sm_t *sls = avl_first(&spa->spa_sm_logs_by_txg);
415 sls; sls = AVL_NEXT(&spa->spa_sm_logs_by_txg, sls)) {
416 space_map_t *sm = NULL;
417 VERIFY0(space_map_open(&sm, spa_meta_objset(spa),
418 sls->sls_sm_obj, 0, UINT64_MAX, SPA_MINBLOCKSHIFT));
419
420 unflushed_iter_cb_arg_t uic = {
421 .uic_spa = spa,
422 .uic_txg = sls->sls_txg,
423 .uic_arg = arg,
424 .uic_cb = cb
425 };
426 VERIFY0(space_map_iterate(sm, space_map_length(sm),
427 iterate_through_spacemap_logs_cb, &uic));
428 space_map_close(sm);
429 }
430 spa_config_exit(spa, SCL_CONFIG, FTAG);
431 }
432
433 static void
434 verify_livelist_allocs(metaslab_verify_t *mv, uint64_t txg,
435 uint64_t offset, uint64_t size)
436 {
437 sublivelist_verify_block_t svb;
438 DVA_SET_VDEV(&svb.svb_dva, mv->mv_vdid);
439 DVA_SET_OFFSET(&svb.svb_dva, offset);
440 DVA_SET_ASIZE(&svb.svb_dva, size);
441 zfs_btree_index_t where;
442 uint64_t end_offset = offset + size;
443
444 /*
445 * Look for an exact match for spacemap entry in the livelist entries.
446 * Then, look for other livelist entries that fall within the range
447 * of the spacemap entry as it may have been condensed
448 */
449 sublivelist_verify_block_t *found =
450 zfs_btree_find(&mv->mv_livelist_allocs, &svb, &where);
451 if (found == NULL) {
452 found = zfs_btree_next(&mv->mv_livelist_allocs, &where, &where);
453 }
454 for (; found != NULL && DVA_GET_VDEV(&found->svb_dva) == mv->mv_vdid &&
455 DVA_GET_OFFSET(&found->svb_dva) < end_offset;
456 found = zfs_btree_next(&mv->mv_livelist_allocs, &where, &where)) {
457 if (found->svb_allocated_txg <= txg) {
458 (void) printf("ERROR: Livelist ALLOC [%llx:%llx] "
459 "from TXG %llx FREED at TXG %llx\n",
460 (u_longlong_t)DVA_GET_OFFSET(&found->svb_dva),
461 (u_longlong_t)DVA_GET_ASIZE(&found->svb_dva),
462 (u_longlong_t)found->svb_allocated_txg,
463 (u_longlong_t)txg);
464 }
465 }
466 }
467
468 static int
469 metaslab_spacemap_validation_cb(space_map_entry_t *sme, void *arg)
470 {
471 metaslab_verify_t *mv = arg;
472 uint64_t offset = sme->sme_offset;
473 uint64_t size = sme->sme_run;
474 uint64_t txg = sme->sme_txg;
475
476 if (sme->sme_type == SM_ALLOC) {
477 if (range_tree_contains(mv->mv_allocated,
478 offset, size)) {
479 (void) printf("ERROR: DOUBLE ALLOC: "
480 "%llu [%llx:%llx] "
481 "%llu:%llu LOG_SM\n",
482 (u_longlong_t)txg, (u_longlong_t)offset,
483 (u_longlong_t)size, (u_longlong_t)mv->mv_vdid,
484 (u_longlong_t)mv->mv_msid);
485 } else {
486 range_tree_add(mv->mv_allocated,
487 offset, size);
488 }
489 } else {
490 if (!range_tree_contains(mv->mv_allocated,
491 offset, size)) {
492 (void) printf("ERROR: DOUBLE FREE: "
493 "%llu [%llx:%llx] "
494 "%llu:%llu LOG_SM\n",
495 (u_longlong_t)txg, (u_longlong_t)offset,
496 (u_longlong_t)size, (u_longlong_t)mv->mv_vdid,
497 (u_longlong_t)mv->mv_msid);
498 } else {
499 range_tree_remove(mv->mv_allocated,
500 offset, size);
501 }
502 }
503
504 if (sme->sme_type != SM_ALLOC) {
505 /*
506 * If something is freed in the spacemap, verify that
507 * it is not listed as allocated in the livelist.
508 */
509 verify_livelist_allocs(mv, txg, offset, size);
510 }
511 return (0);
512 }
513
514 static int
515 spacemap_check_sm_log_cb(spa_t *spa, space_map_entry_t *sme,
516 uint64_t txg, void *arg)
517 {
518 metaslab_verify_t *mv = arg;
519 uint64_t offset = sme->sme_offset;
520 uint64_t vdev_id = sme->sme_vdev;
521
522 vdev_t *vd = vdev_lookup_top(spa, vdev_id);
523
524 /* skip indirect vdevs */
525 if (!vdev_is_concrete(vd))
526 return (0);
527
528 if (vdev_id != mv->mv_vdid)
529 return (0);
530
531 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift];
532 if (ms->ms_id != mv->mv_msid)
533 return (0);
534
535 if (txg < metaslab_unflushed_txg(ms))
536 return (0);
537
538
539 ASSERT3U(txg, ==, sme->sme_txg);
540 return (metaslab_spacemap_validation_cb(sme, mv));
541 }
542
543 static void
544 spacemap_check_sm_log(spa_t *spa, metaslab_verify_t *mv)
545 {
546 iterate_through_spacemap_logs(spa, spacemap_check_sm_log_cb, mv);
547 }
548
549 static void
550 spacemap_check_ms_sm(space_map_t *sm, metaslab_verify_t *mv)
551 {
552 if (sm == NULL)
553 return;
554
555 VERIFY0(space_map_iterate(sm, space_map_length(sm),
556 metaslab_spacemap_validation_cb, mv));
557 }
558
559 static void iterate_deleted_livelists(spa_t *spa, ll_iter_t func, void *arg);
560
561 /*
562 * Transfer blocks from sv_leftover tree to the mv_livelist_allocs if
563 * they are part of that metaslab (mv_msid).
564 */
565 static void
566 mv_populate_livelist_allocs(metaslab_verify_t *mv, sublivelist_verify_t *sv)
567 {
568 zfs_btree_index_t where;
569 sublivelist_verify_block_t *svb;
570 ASSERT3U(zfs_btree_numnodes(&mv->mv_livelist_allocs), ==, 0);
571 for (svb = zfs_btree_first(&sv->sv_leftover, &where);
572 svb != NULL;
573 svb = zfs_btree_next(&sv->sv_leftover, &where, &where)) {
574 if (DVA_GET_VDEV(&svb->svb_dva) != mv->mv_vdid)
575 continue;
576
577 if (DVA_GET_OFFSET(&svb->svb_dva) < mv->mv_start &&
578 (DVA_GET_OFFSET(&svb->svb_dva) +
579 DVA_GET_ASIZE(&svb->svb_dva)) > mv->mv_start) {
580 (void) printf("ERROR: Found block that crosses "
581 "metaslab boundary: <%llu:%llx:%llx>\n",
582 (u_longlong_t)DVA_GET_VDEV(&svb->svb_dva),
583 (u_longlong_t)DVA_GET_OFFSET(&svb->svb_dva),
584 (u_longlong_t)DVA_GET_ASIZE(&svb->svb_dva));
585 continue;
586 }
587
588 if (DVA_GET_OFFSET(&svb->svb_dva) < mv->mv_start)
589 continue;
590
591 if (DVA_GET_OFFSET(&svb->svb_dva) >= mv->mv_end)
592 continue;
593
594 if ((DVA_GET_OFFSET(&svb->svb_dva) +
595 DVA_GET_ASIZE(&svb->svb_dva)) > mv->mv_end) {
596 (void) printf("ERROR: Found block that crosses "
597 "metaslab boundary: <%llu:%llx:%llx>\n",
598 (u_longlong_t)DVA_GET_VDEV(&svb->svb_dva),
599 (u_longlong_t)DVA_GET_OFFSET(&svb->svb_dva),
600 (u_longlong_t)DVA_GET_ASIZE(&svb->svb_dva));
601 continue;
602 }
603
604 zfs_btree_add(&mv->mv_livelist_allocs, svb);
605 }
606
607 for (svb = zfs_btree_first(&mv->mv_livelist_allocs, &where);
608 svb != NULL;
609 svb = zfs_btree_next(&mv->mv_livelist_allocs, &where, &where)) {
610 zfs_btree_remove(&sv->sv_leftover, svb);
611 }
612 }
613
614 /*
615 * [Livelist Check]
616 * Iterate through all the sublivelists and:
617 * - report leftover frees
618 * - report double ALLOCs/FREEs
619 * - record leftover ALLOCs together with their TXG [see Cross Check]
620 *
621 * [Spacemap Check]
622 * for each metaslab:
623 * - iterate over spacemap and then the metaslab's entries in the
624 * spacemap log, then report any double FREEs and ALLOCs (do not
625 * blow up).
626 *
627 * [Cross Check]
628 * After finishing the Livelist Check phase and while being in the
629 * Spacemap Check phase, we find all the recorded leftover ALLOCs
630 * of the livelist check that are part of the metaslab that we are
631 * currently looking at in the Spacemap Check. We report any entries
632 * that are marked as ALLOCs in the livelists but have been actually
633 * freed (and potentially allocated again) after their TXG stamp in
634 * the spacemaps. Also report any ALLOCs from the livelists that
635 * belong to indirect vdevs (e.g. their vdev completed removal).
636 *
637 * Note that this will miss Log Spacemap entries that cancelled each other
638 * out before being flushed to the metaslab, so we are not guaranteed
639 * to match all erroneous ALLOCs.
640 */
641 static void
642 livelist_metaslab_validate(spa_t *spa)
643 {
644 (void) printf("Verifying deleted livelist entries\n");
645
646 sublivelist_verify_t sv;
647 zfs_btree_create(&sv.sv_leftover, livelist_block_compare,
648 sizeof (sublivelist_verify_block_t));
649 iterate_deleted_livelists(spa, livelist_verify, &sv);
650
651 (void) printf("Verifying metaslab entries\n");
652 vdev_t *rvd = spa->spa_root_vdev;
653 for (uint64_t c = 0; c < rvd->vdev_children; c++) {
654 vdev_t *vd = rvd->vdev_child[c];
655
656 if (!vdev_is_concrete(vd))
657 continue;
658
659 for (uint64_t mid = 0; mid < vd->vdev_ms_count; mid++) {
660 metaslab_t *m = vd->vdev_ms[mid];
661
662 (void) fprintf(stderr,
663 "\rverifying concrete vdev %llu, "
664 "metaslab %llu of %llu ...",
665 (longlong_t)vd->vdev_id,
666 (longlong_t)mid,
667 (longlong_t)vd->vdev_ms_count);
668
669 uint64_t shift, start;
670 range_seg_type_t type =
671 metaslab_calculate_range_tree_type(vd, m,
672 &start, &shift);
673 metaslab_verify_t mv;
674 mv.mv_allocated = range_tree_create(NULL,
675 type, NULL, start, shift);
676 mv.mv_vdid = vd->vdev_id;
677 mv.mv_msid = m->ms_id;
678 mv.mv_start = m->ms_start;
679 mv.mv_end = m->ms_start + m->ms_size;
680 zfs_btree_create(&mv.mv_livelist_allocs,
681 livelist_block_compare,
682 sizeof (sublivelist_verify_block_t));
683
684 mv_populate_livelist_allocs(&mv, &sv);
685
686 spacemap_check_ms_sm(m->ms_sm, &mv);
687 spacemap_check_sm_log(spa, &mv);
688
689 range_tree_vacate(mv.mv_allocated, NULL, NULL);
690 range_tree_destroy(mv.mv_allocated);
691 zfs_btree_clear(&mv.mv_livelist_allocs);
692 zfs_btree_destroy(&mv.mv_livelist_allocs);
693 }
694 }
695 (void) fprintf(stderr, "\n");
696
697 /*
698 * If there are any segments in the leftover tree after we walked
699 * through all the metaslabs in the concrete vdevs then this means
700 * that we have segments in the livelists that belong to indirect
701 * vdevs and are marked as allocated.
702 */
703 if (zfs_btree_numnodes(&sv.sv_leftover) == 0) {
704 zfs_btree_destroy(&sv.sv_leftover);
705 return;
706 }
707 (void) printf("ERROR: Found livelist blocks marked as allocated "
708 "for indirect vdevs:\n");
709
710 zfs_btree_index_t *where = NULL;
711 sublivelist_verify_block_t *svb;
712 while ((svb = zfs_btree_destroy_nodes(&sv.sv_leftover, &where)) !=
713 NULL) {
714 int vdev_id = DVA_GET_VDEV(&svb->svb_dva);
715 ASSERT3U(vdev_id, <, rvd->vdev_children);
716 vdev_t *vd = rvd->vdev_child[vdev_id];
717 ASSERT(!vdev_is_concrete(vd));
718 (void) printf("<%d:%llx:%llx> TXG %llx\n",
719 vdev_id, (u_longlong_t)DVA_GET_OFFSET(&svb->svb_dva),
720 (u_longlong_t)DVA_GET_ASIZE(&svb->svb_dva),
721 (u_longlong_t)svb->svb_allocated_txg);
722 }
723 (void) printf("\n");
724 zfs_btree_destroy(&sv.sv_leftover);
725 }
726
727 /*
728 * These libumem hooks provide a reasonable set of defaults for the allocator's
729 * debugging facilities.
730 */
731 const char *
732 _umem_debug_init(void)
733 {
734 return ("default,verbose"); /* $UMEM_DEBUG setting */
735 }
736
737 const char *
738 _umem_logging_init(void)
739 {
740 return ("fail,contents"); /* $UMEM_LOGGING setting */
741 }
742
743 static void
744 usage(void)
745 {
746 (void) fprintf(stderr,
747 "Usage:\t%s [-AbcdDFGhikLMPsvXy] [-e [-V] [-p <path> ...]] "
748 "[-I <inflight I/Os>]\n"
749 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n"
750 "\t\t[<poolname>[/<dataset | objset id>] [<object | range> ...]]\n"
751 "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>]\n"
752 "\t\t[<poolname>[/<dataset | objset id>] [<object | range> ...]\n"
753 "\t%s [-v] <bookmark>\n"
754 "\t%s -C [-A] [-U <cache>]\n"
755 "\t%s -l [-Aqu] <device>\n"
756 "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] "
757 "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n"
758 "\t%s -O <dataset> <path>\n"
759 "\t%s -r <dataset> <path> <destination>\n"
760 "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n"
761 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n"
762 "\t%s -E [-A] word0:word1:...:word15\n"
763 "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] "
764 "<poolname>\n\n",
765 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname,
766 cmdname, cmdname, cmdname, cmdname);
767
768 (void) fprintf(stderr, " Dataset name must include at least one "
769 "separator character '/' or '@'\n");
770 (void) fprintf(stderr, " If dataset name is specified, only that "
771 "dataset is dumped\n");
772 (void) fprintf(stderr, " If object numbers or object number "
773 "ranges are specified, only those\n"
774 " objects or ranges are dumped.\n\n");
775 (void) fprintf(stderr,
776 " Object ranges take the form <start>:<end>[:<flags>]\n"
777 " start Starting object number\n"
778 " end Ending object number, or -1 for no upper bound\n"
779 " flags Optional flags to select object types:\n"
780 " A All objects (this is the default)\n"
781 " d ZFS directories\n"
782 " f ZFS files \n"
783 " m SPA space maps\n"
784 " z ZAPs\n"
785 " - Negate effect of next flag\n\n");
786 (void) fprintf(stderr, " Options to control amount of output:\n");
787 (void) fprintf(stderr, " -b block statistics\n");
788 (void) fprintf(stderr, " -c checksum all metadata (twice for "
789 "all data) blocks\n");
790 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
791 (void) fprintf(stderr, " -d dataset(s)\n");
792 (void) fprintf(stderr, " -D dedup statistics\n");
793 (void) fprintf(stderr, " -E decode and display block from an "
794 "embedded block pointer\n");
795 (void) fprintf(stderr, " -h pool history\n");
796 (void) fprintf(stderr, " -i intent logs\n");
797 (void) fprintf(stderr, " -l read label contents\n");
798 (void) fprintf(stderr, " -k examine the checkpointed state "
799 "of the pool\n");
800 (void) fprintf(stderr, " -L disable leak tracking (do not "
801 "load spacemaps)\n");
802 (void) fprintf(stderr, " -m metaslabs\n");
803 (void) fprintf(stderr, " -M metaslab groups\n");
804 (void) fprintf(stderr, " -O perform object lookups by path\n");
805 (void) fprintf(stderr, " -r copy an object by path to file\n");
806 (void) fprintf(stderr, " -R read and display block from a "
807 "device\n");
808 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
809 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
810 (void) fprintf(stderr, " -v verbose (applies to all "
811 "others)\n");
812 (void) fprintf(stderr, " -y perform livelist and metaslab "
813 "validation on any livelists being deleted\n\n");
814 (void) fprintf(stderr, " Below options are intended for use "
815 "with other options:\n");
816 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
817 "panic recovery (-AA) or both (-AAA)\n");
818 (void) fprintf(stderr, " -e pool is exported/destroyed/"
819 "has altroot/not in a cachefile\n");
820 (void) fprintf(stderr, " -F attempt automatic rewind within "
821 "safe range of transaction groups\n");
822 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before "
823 "exiting\n");
824 (void) fprintf(stderr, " -I <number of inflight I/Os> -- "
825 "specify the maximum number of\n "
826 "checksumming I/Os [default is 200]\n");
827 (void) fprintf(stderr, " -o <variable>=<value> set global "
828 "variable to an unsigned 32-bit integer\n");
829 (void) fprintf(stderr, " -p <path> -- use one or more with "
830 "-e to specify path to vdev dir\n");
831 (void) fprintf(stderr, " -P print numbers in parseable form\n");
832 (void) fprintf(stderr, " -q don't print label contents\n");
833 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
834 "searching for uberblocks\n");
835 (void) fprintf(stderr, " -u uberblock\n");
836 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
837 "cachefile\n");
838 (void) fprintf(stderr, " -V do verbatim import\n");
839 (void) fprintf(stderr, " -x <dumpdir> -- "
840 "dump all read blocks into specified directory\n");
841 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
842 "work with dataset)\n");
843 (void) fprintf(stderr, " -Y attempt all reconstruction "
844 "combinations for split blocks\n");
845 (void) fprintf(stderr, " -Z show ZSTD headers \n");
846 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
847 "to make only that option verbose\n");
848 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
849 exit(1);
850 }
851
852 static void
853 dump_debug_buffer(void)
854 {
855 if (dump_opt['G']) {
856 (void) printf("\n");
857 (void) fflush(stdout);
858 zfs_dbgmsg_print("zdb");
859 }
860 }
861
862 /*
863 * Called for usage errors that are discovered after a call to spa_open(),
864 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
865 */
866
867 static void
868 fatal(const char *fmt, ...)
869 {
870 va_list ap;
871
872 va_start(ap, fmt);
873 (void) fprintf(stderr, "%s: ", cmdname);
874 (void) vfprintf(stderr, fmt, ap);
875 va_end(ap);
876 (void) fprintf(stderr, "\n");
877
878 dump_debug_buffer();
879
880 exit(1);
881 }
882
883 /* ARGSUSED */
884 static void
885 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
886 {
887 nvlist_t *nv;
888 size_t nvsize = *(uint64_t *)data;
889 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
890
891 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
892
893 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
894
895 umem_free(packed, nvsize);
896
897 dump_nvlist(nv, 8);
898
899 nvlist_free(nv);
900 }
901
902 /* ARGSUSED */
903 static void
904 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
905 {
906 spa_history_phys_t *shp = data;
907
908 if (shp == NULL)
909 return;
910
911 (void) printf("\t\tpool_create_len = %llu\n",
912 (u_longlong_t)shp->sh_pool_create_len);
913 (void) printf("\t\tphys_max_off = %llu\n",
914 (u_longlong_t)shp->sh_phys_max_off);
915 (void) printf("\t\tbof = %llu\n",
916 (u_longlong_t)shp->sh_bof);
917 (void) printf("\t\teof = %llu\n",
918 (u_longlong_t)shp->sh_eof);
919 (void) printf("\t\trecords_lost = %llu\n",
920 (u_longlong_t)shp->sh_records_lost);
921 }
922
923 static void
924 zdb_nicenum(uint64_t num, char *buf, size_t buflen)
925 {
926 if (dump_opt['P'])
927 (void) snprintf(buf, buflen, "%llu", (longlong_t)num);
928 else
929 nicenum(num, buf, sizeof (buf));
930 }
931
932 static const char histo_stars[] = "****************************************";
933 static const uint64_t histo_width = sizeof (histo_stars) - 1;
934
935 static void
936 dump_histogram(const uint64_t *histo, int size, int offset)
937 {
938 int i;
939 int minidx = size - 1;
940 int maxidx = 0;
941 uint64_t max = 0;
942
943 for (i = 0; i < size; i++) {
944 if (histo[i] > max)
945 max = histo[i];
946 if (histo[i] > 0 && i > maxidx)
947 maxidx = i;
948 if (histo[i] > 0 && i < minidx)
949 minidx = i;
950 }
951
952 if (max < histo_width)
953 max = histo_width;
954
955 for (i = minidx; i <= maxidx; i++) {
956 (void) printf("\t\t\t%3u: %6llu %s\n",
957 i + offset, (u_longlong_t)histo[i],
958 &histo_stars[(max - histo[i]) * histo_width / max]);
959 }
960 }
961
962 static void
963 dump_zap_stats(objset_t *os, uint64_t object)
964 {
965 int error;
966 zap_stats_t zs;
967
968 error = zap_get_stats(os, object, &zs);
969 if (error)
970 return;
971
972 if (zs.zs_ptrtbl_len == 0) {
973 ASSERT(zs.zs_num_blocks == 1);
974 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
975 (u_longlong_t)zs.zs_blocksize,
976 (u_longlong_t)zs.zs_num_entries);
977 return;
978 }
979
980 (void) printf("\tFat ZAP stats:\n");
981
982 (void) printf("\t\tPointer table:\n");
983 (void) printf("\t\t\t%llu elements\n",
984 (u_longlong_t)zs.zs_ptrtbl_len);
985 (void) printf("\t\t\tzt_blk: %llu\n",
986 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
987 (void) printf("\t\t\tzt_numblks: %llu\n",
988 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
989 (void) printf("\t\t\tzt_shift: %llu\n",
990 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
991 (void) printf("\t\t\tzt_blks_copied: %llu\n",
992 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
993 (void) printf("\t\t\tzt_nextblk: %llu\n",
994 (u_longlong_t)zs.zs_ptrtbl_nextblk);
995
996 (void) printf("\t\tZAP entries: %llu\n",
997 (u_longlong_t)zs.zs_num_entries);
998 (void) printf("\t\tLeaf blocks: %llu\n",
999 (u_longlong_t)zs.zs_num_leafs);
1000 (void) printf("\t\tTotal blocks: %llu\n",
1001 (u_longlong_t)zs.zs_num_blocks);
1002 (void) printf("\t\tzap_block_type: 0x%llx\n",
1003 (u_longlong_t)zs.zs_block_type);
1004 (void) printf("\t\tzap_magic: 0x%llx\n",
1005 (u_longlong_t)zs.zs_magic);
1006 (void) printf("\t\tzap_salt: 0x%llx\n",
1007 (u_longlong_t)zs.zs_salt);
1008
1009 (void) printf("\t\tLeafs with 2^n pointers:\n");
1010 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
1011
1012 (void) printf("\t\tBlocks with n*5 entries:\n");
1013 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
1014
1015 (void) printf("\t\tBlocks n/10 full:\n");
1016 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
1017
1018 (void) printf("\t\tEntries with n chunks:\n");
1019 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
1020
1021 (void) printf("\t\tBuckets with n entries:\n");
1022 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
1023 }
1024
1025 /*ARGSUSED*/
1026 static void
1027 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
1028 {
1029 }
1030
1031 /*ARGSUSED*/
1032 static void
1033 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
1034 {
1035 (void) printf("\tUNKNOWN OBJECT TYPE\n");
1036 }
1037
1038 /*ARGSUSED*/
1039 static void
1040 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
1041 {
1042 }
1043
1044 /*ARGSUSED*/
1045 static void
1046 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
1047 {
1048 uint64_t *arr;
1049 uint64_t oursize;
1050 if (dump_opt['d'] < 6)
1051 return;
1052
1053 if (data == NULL) {
1054 dmu_object_info_t doi;
1055
1056 VERIFY0(dmu_object_info(os, object, &doi));
1057 size = doi.doi_max_offset;
1058 /*
1059 * We cap the size at 1 mebibyte here to prevent
1060 * allocation failures and nigh-infinite printing if the
1061 * object is extremely large.
1062 */
1063 oursize = MIN(size, 1 << 20);
1064 arr = kmem_alloc(oursize, KM_SLEEP);
1065
1066 int err = dmu_read(os, object, 0, oursize, arr, 0);
1067 if (err != 0) {
1068 (void) printf("got error %u from dmu_read\n", err);
1069 kmem_free(arr, oursize);
1070 return;
1071 }
1072 } else {
1073 /*
1074 * Even though the allocation is already done in this code path,
1075 * we still cap the size to prevent excessive printing.
1076 */
1077 oursize = MIN(size, 1 << 20);
1078 arr = data;
1079 }
1080
1081 if (size == 0) {
1082 (void) printf("\t\t[]\n");
1083 return;
1084 }
1085
1086 (void) printf("\t\t[%0llx", (u_longlong_t)arr[0]);
1087 for (size_t i = 1; i * sizeof (uint64_t) < oursize; i++) {
1088 if (i % 4 != 0)
1089 (void) printf(", %0llx", (u_longlong_t)arr[i]);
1090 else
1091 (void) printf(",\n\t\t%0llx", (u_longlong_t)arr[i]);
1092 }
1093 if (oursize != size)
1094 (void) printf(", ... ");
1095 (void) printf("]\n");
1096
1097 if (data == NULL)
1098 kmem_free(arr, oursize);
1099 }
1100
1101 /*ARGSUSED*/
1102 static void
1103 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
1104 {
1105 zap_cursor_t zc;
1106 zap_attribute_t attr;
1107 void *prop;
1108 unsigned i;
1109
1110 dump_zap_stats(os, object);
1111 (void) printf("\n");
1112
1113 for (zap_cursor_init(&zc, os, object);
1114 zap_cursor_retrieve(&zc, &attr) == 0;
1115 zap_cursor_advance(&zc)) {
1116 (void) printf("\t\t%s = ", attr.za_name);
1117 if (attr.za_num_integers == 0) {
1118 (void) printf("\n");
1119 continue;
1120 }
1121 prop = umem_zalloc(attr.za_num_integers *
1122 attr.za_integer_length, UMEM_NOFAIL);
1123 (void) zap_lookup(os, object, attr.za_name,
1124 attr.za_integer_length, attr.za_num_integers, prop);
1125 if (attr.za_integer_length == 1) {
1126 if (strcmp(attr.za_name,
1127 DSL_CRYPTO_KEY_MASTER_KEY) == 0 ||
1128 strcmp(attr.za_name,
1129 DSL_CRYPTO_KEY_HMAC_KEY) == 0 ||
1130 strcmp(attr.za_name, DSL_CRYPTO_KEY_IV) == 0 ||
1131 strcmp(attr.za_name, DSL_CRYPTO_KEY_MAC) == 0 ||
1132 strcmp(attr.za_name, DMU_POOL_CHECKSUM_SALT) == 0) {
1133 uint8_t *u8 = prop;
1134
1135 for (i = 0; i < attr.za_num_integers; i++) {
1136 (void) printf("%02x", u8[i]);
1137 }
1138 } else {
1139 (void) printf("%s", (char *)prop);
1140 }
1141 } else {
1142 for (i = 0; i < attr.za_num_integers; i++) {
1143 switch (attr.za_integer_length) {
1144 case 2:
1145 (void) printf("%u ",
1146 ((uint16_t *)prop)[i]);
1147 break;
1148 case 4:
1149 (void) printf("%u ",
1150 ((uint32_t *)prop)[i]);
1151 break;
1152 case 8:
1153 (void) printf("%lld ",
1154 (u_longlong_t)((int64_t *)prop)[i]);
1155 break;
1156 }
1157 }
1158 }
1159 (void) printf("\n");
1160 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
1161 }
1162 zap_cursor_fini(&zc);
1163 }
1164
1165 static void
1166 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size)
1167 {
1168 bpobj_phys_t *bpop = data;
1169 uint64_t i;
1170 char bytes[32], comp[32], uncomp[32];
1171
1172 /* make sure the output won't get truncated */
1173 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1174 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
1175 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
1176
1177 if (bpop == NULL)
1178 return;
1179
1180 zdb_nicenum(bpop->bpo_bytes, bytes, sizeof (bytes));
1181 zdb_nicenum(bpop->bpo_comp, comp, sizeof (comp));
1182 zdb_nicenum(bpop->bpo_uncomp, uncomp, sizeof (uncomp));
1183
1184 (void) printf("\t\tnum_blkptrs = %llu\n",
1185 (u_longlong_t)bpop->bpo_num_blkptrs);
1186 (void) printf("\t\tbytes = %s\n", bytes);
1187 if (size >= BPOBJ_SIZE_V1) {
1188 (void) printf("\t\tcomp = %s\n", comp);
1189 (void) printf("\t\tuncomp = %s\n", uncomp);
1190 }
1191 if (size >= BPOBJ_SIZE_V2) {
1192 (void) printf("\t\tsubobjs = %llu\n",
1193 (u_longlong_t)bpop->bpo_subobjs);
1194 (void) printf("\t\tnum_subobjs = %llu\n",
1195 (u_longlong_t)bpop->bpo_num_subobjs);
1196 }
1197 if (size >= sizeof (*bpop)) {
1198 (void) printf("\t\tnum_freed = %llu\n",
1199 (u_longlong_t)bpop->bpo_num_freed);
1200 }
1201
1202 if (dump_opt['d'] < 5)
1203 return;
1204
1205 for (i = 0; i < bpop->bpo_num_blkptrs; i++) {
1206 char blkbuf[BP_SPRINTF_LEN];
1207 blkptr_t bp;
1208
1209 int err = dmu_read(os, object,
1210 i * sizeof (bp), sizeof (bp), &bp, 0);
1211 if (err != 0) {
1212 (void) printf("got error %u from dmu_read\n", err);
1213 break;
1214 }
1215 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp,
1216 BP_GET_FREE(&bp));
1217 (void) printf("\t%s\n", blkbuf);
1218 }
1219 }
1220
1221 /* ARGSUSED */
1222 static void
1223 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size)
1224 {
1225 dmu_object_info_t doi;
1226 int64_t i;
1227
1228 VERIFY0(dmu_object_info(os, object, &doi));
1229 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP);
1230
1231 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0);
1232 if (err != 0) {
1233 (void) printf("got error %u from dmu_read\n", err);
1234 kmem_free(subobjs, doi.doi_max_offset);
1235 return;
1236 }
1237
1238 int64_t last_nonzero = -1;
1239 for (i = 0; i < doi.doi_max_offset / 8; i++) {
1240 if (subobjs[i] != 0)
1241 last_nonzero = i;
1242 }
1243
1244 for (i = 0; i <= last_nonzero; i++) {
1245 (void) printf("\t%llu\n", (u_longlong_t)subobjs[i]);
1246 }
1247 kmem_free(subobjs, doi.doi_max_offset);
1248 }
1249
1250 /*ARGSUSED*/
1251 static void
1252 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
1253 {
1254 dump_zap_stats(os, object);
1255 /* contents are printed elsewhere, properly decoded */
1256 }
1257
1258 /*ARGSUSED*/
1259 static void
1260 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
1261 {
1262 zap_cursor_t zc;
1263 zap_attribute_t attr;
1264
1265 dump_zap_stats(os, object);
1266 (void) printf("\n");
1267
1268 for (zap_cursor_init(&zc, os, object);
1269 zap_cursor_retrieve(&zc, &attr) == 0;
1270 zap_cursor_advance(&zc)) {
1271 (void) printf("\t\t%s = ", attr.za_name);
1272 if (attr.za_num_integers == 0) {
1273 (void) printf("\n");
1274 continue;
1275 }
1276 (void) printf(" %llx : [%d:%d:%d]\n",
1277 (u_longlong_t)attr.za_first_integer,
1278 (int)ATTR_LENGTH(attr.za_first_integer),
1279 (int)ATTR_BSWAP(attr.za_first_integer),
1280 (int)ATTR_NUM(attr.za_first_integer));
1281 }
1282 zap_cursor_fini(&zc);
1283 }
1284
1285 /*ARGSUSED*/
1286 static void
1287 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
1288 {
1289 zap_cursor_t zc;
1290 zap_attribute_t attr;
1291 uint16_t *layout_attrs;
1292 unsigned i;
1293
1294 dump_zap_stats(os, object);
1295 (void) printf("\n");
1296
1297 for (zap_cursor_init(&zc, os, object);
1298 zap_cursor_retrieve(&zc, &attr) == 0;
1299 zap_cursor_advance(&zc)) {
1300 (void) printf("\t\t%s = [", attr.za_name);
1301 if (attr.za_num_integers == 0) {
1302 (void) printf("\n");
1303 continue;
1304 }
1305
1306 VERIFY(attr.za_integer_length == 2);
1307 layout_attrs = umem_zalloc(attr.za_num_integers *
1308 attr.za_integer_length, UMEM_NOFAIL);
1309
1310 VERIFY(zap_lookup(os, object, attr.za_name,
1311 attr.za_integer_length,
1312 attr.za_num_integers, layout_attrs) == 0);
1313
1314 for (i = 0; i != attr.za_num_integers; i++)
1315 (void) printf(" %d ", (int)layout_attrs[i]);
1316 (void) printf("]\n");
1317 umem_free(layout_attrs,
1318 attr.za_num_integers * attr.za_integer_length);
1319 }
1320 zap_cursor_fini(&zc);
1321 }
1322
1323 /*ARGSUSED*/
1324 static void
1325 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
1326 {
1327 zap_cursor_t zc;
1328 zap_attribute_t attr;
1329 const char *typenames[] = {
1330 /* 0 */ "not specified",
1331 /* 1 */ "FIFO",
1332 /* 2 */ "Character Device",
1333 /* 3 */ "3 (invalid)",
1334 /* 4 */ "Directory",
1335 /* 5 */ "5 (invalid)",
1336 /* 6 */ "Block Device",
1337 /* 7 */ "7 (invalid)",
1338 /* 8 */ "Regular File",
1339 /* 9 */ "9 (invalid)",
1340 /* 10 */ "Symbolic Link",
1341 /* 11 */ "11 (invalid)",
1342 /* 12 */ "Socket",
1343 /* 13 */ "Door",
1344 /* 14 */ "Event Port",
1345 /* 15 */ "15 (invalid)",
1346 };
1347
1348 dump_zap_stats(os, object);
1349 (void) printf("\n");
1350
1351 for (zap_cursor_init(&zc, os, object);
1352 zap_cursor_retrieve(&zc, &attr) == 0;
1353 zap_cursor_advance(&zc)) {
1354 (void) printf("\t\t%s = %lld (type: %s)\n",
1355 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
1356 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
1357 }
1358 zap_cursor_fini(&zc);
1359 }
1360
1361 static int
1362 get_dtl_refcount(vdev_t *vd)
1363 {
1364 int refcount = 0;
1365
1366 if (vd->vdev_ops->vdev_op_leaf) {
1367 space_map_t *sm = vd->vdev_dtl_sm;
1368
1369 if (sm != NULL &&
1370 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
1371 return (1);
1372 return (0);
1373 }
1374
1375 for (unsigned c = 0; c < vd->vdev_children; c++)
1376 refcount += get_dtl_refcount(vd->vdev_child[c]);
1377 return (refcount);
1378 }
1379
1380 static int
1381 get_metaslab_refcount(vdev_t *vd)
1382 {
1383 int refcount = 0;
1384
1385 if (vd->vdev_top == vd) {
1386 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
1387 space_map_t *sm = vd->vdev_ms[m]->ms_sm;
1388
1389 if (sm != NULL &&
1390 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
1391 refcount++;
1392 }
1393 }
1394 for (unsigned c = 0; c < vd->vdev_children; c++)
1395 refcount += get_metaslab_refcount(vd->vdev_child[c]);
1396
1397 return (refcount);
1398 }
1399
1400 static int
1401 get_obsolete_refcount(vdev_t *vd)
1402 {
1403 uint64_t obsolete_sm_object;
1404 int refcount = 0;
1405
1406 VERIFY0(vdev_obsolete_sm_object(vd, &obsolete_sm_object));
1407 if (vd->vdev_top == vd && obsolete_sm_object != 0) {
1408 dmu_object_info_t doi;
1409 VERIFY0(dmu_object_info(vd->vdev_spa->spa_meta_objset,
1410 obsolete_sm_object, &doi));
1411 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) {
1412 refcount++;
1413 }
1414 } else {
1415 ASSERT3P(vd->vdev_obsolete_sm, ==, NULL);
1416 ASSERT3U(obsolete_sm_object, ==, 0);
1417 }
1418 for (unsigned c = 0; c < vd->vdev_children; c++) {
1419 refcount += get_obsolete_refcount(vd->vdev_child[c]);
1420 }
1421
1422 return (refcount);
1423 }
1424
1425 static int
1426 get_prev_obsolete_spacemap_refcount(spa_t *spa)
1427 {
1428 uint64_t prev_obj =
1429 spa->spa_condensing_indirect_phys.scip_prev_obsolete_sm_object;
1430 if (prev_obj != 0) {
1431 dmu_object_info_t doi;
1432 VERIFY0(dmu_object_info(spa->spa_meta_objset, prev_obj, &doi));
1433 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) {
1434 return (1);
1435 }
1436 }
1437 return (0);
1438 }
1439
1440 static int
1441 get_checkpoint_refcount(vdev_t *vd)
1442 {
1443 int refcount = 0;
1444
1445 if (vd->vdev_top == vd && vd->vdev_top_zap != 0 &&
1446 zap_contains(spa_meta_objset(vd->vdev_spa),
1447 vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) == 0)
1448 refcount++;
1449
1450 for (uint64_t c = 0; c < vd->vdev_children; c++)
1451 refcount += get_checkpoint_refcount(vd->vdev_child[c]);
1452
1453 return (refcount);
1454 }
1455
1456 static int
1457 get_log_spacemap_refcount(spa_t *spa)
1458 {
1459 return (avl_numnodes(&spa->spa_sm_logs_by_txg));
1460 }
1461
1462 static int
1463 verify_spacemap_refcounts(spa_t *spa)
1464 {
1465 uint64_t expected_refcount = 0;
1466 uint64_t actual_refcount;
1467
1468 (void) feature_get_refcount(spa,
1469 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
1470 &expected_refcount);
1471 actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
1472 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
1473 actual_refcount += get_obsolete_refcount(spa->spa_root_vdev);
1474 actual_refcount += get_prev_obsolete_spacemap_refcount(spa);
1475 actual_refcount += get_checkpoint_refcount(spa->spa_root_vdev);
1476 actual_refcount += get_log_spacemap_refcount(spa);
1477
1478 if (expected_refcount != actual_refcount) {
1479 (void) printf("space map refcount mismatch: expected %lld != "
1480 "actual %lld\n",
1481 (longlong_t)expected_refcount,
1482 (longlong_t)actual_refcount);
1483 return (2);
1484 }
1485 return (0);
1486 }
1487
1488 static void
1489 dump_spacemap(objset_t *os, space_map_t *sm)
1490 {
1491 const char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
1492 "INVALID", "INVALID", "INVALID", "INVALID" };
1493
1494 if (sm == NULL)
1495 return;
1496
1497 (void) printf("space map object %llu:\n",
1498 (longlong_t)sm->sm_object);
1499 (void) printf(" smp_length = 0x%llx\n",
1500 (longlong_t)sm->sm_phys->smp_length);
1501 (void) printf(" smp_alloc = 0x%llx\n",
1502 (longlong_t)sm->sm_phys->smp_alloc);
1503
1504 if (dump_opt['d'] < 6 && dump_opt['m'] < 4)
1505 return;
1506
1507 /*
1508 * Print out the freelist entries in both encoded and decoded form.
1509 */
1510 uint8_t mapshift = sm->sm_shift;
1511 int64_t alloc = 0;
1512 uint64_t word, entry_id = 0;
1513 for (uint64_t offset = 0; offset < space_map_length(sm);
1514 offset += sizeof (word)) {
1515
1516 VERIFY0(dmu_read(os, space_map_object(sm), offset,
1517 sizeof (word), &word, DMU_READ_PREFETCH));
1518
1519 if (sm_entry_is_debug(word)) {
1520 uint64_t de_txg = SM_DEBUG_TXG_DECODE(word);
1521 uint64_t de_sync_pass = SM_DEBUG_SYNCPASS_DECODE(word);
1522 if (de_txg == 0) {
1523 (void) printf(
1524 "\t [%6llu] PADDING\n",
1525 (u_longlong_t)entry_id);
1526 } else {
1527 (void) printf(
1528 "\t [%6llu] %s: txg %llu pass %llu\n",
1529 (u_longlong_t)entry_id,
1530 ddata[SM_DEBUG_ACTION_DECODE(word)],
1531 (u_longlong_t)de_txg,
1532 (u_longlong_t)de_sync_pass);
1533 }
1534 entry_id++;
1535 continue;
1536 }
1537
1538 uint8_t words;
1539 char entry_type;
1540 uint64_t entry_off, entry_run, entry_vdev = SM_NO_VDEVID;
1541
1542 if (sm_entry_is_single_word(word)) {
1543 entry_type = (SM_TYPE_DECODE(word) == SM_ALLOC) ?
1544 'A' : 'F';
1545 entry_off = (SM_OFFSET_DECODE(word) << mapshift) +
1546 sm->sm_start;
1547 entry_run = SM_RUN_DECODE(word) << mapshift;
1548 words = 1;
1549 } else {
1550 /* it is a two-word entry so we read another word */
1551 ASSERT(sm_entry_is_double_word(word));
1552
1553 uint64_t extra_word;
1554 offset += sizeof (extra_word);
1555 VERIFY0(dmu_read(os, space_map_object(sm), offset,
1556 sizeof (extra_word), &extra_word,
1557 DMU_READ_PREFETCH));
1558
1559 ASSERT3U(offset, <=, space_map_length(sm));
1560
1561 entry_run = SM2_RUN_DECODE(word) << mapshift;
1562 entry_vdev = SM2_VDEV_DECODE(word);
1563 entry_type = (SM2_TYPE_DECODE(extra_word) == SM_ALLOC) ?
1564 'A' : 'F';
1565 entry_off = (SM2_OFFSET_DECODE(extra_word) <<
1566 mapshift) + sm->sm_start;
1567 words = 2;
1568 }
1569
1570 (void) printf("\t [%6llu] %c range:"
1571 " %010llx-%010llx size: %06llx vdev: %06llu words: %u\n",
1572 (u_longlong_t)entry_id,
1573 entry_type, (u_longlong_t)entry_off,
1574 (u_longlong_t)(entry_off + entry_run),
1575 (u_longlong_t)entry_run,
1576 (u_longlong_t)entry_vdev, words);
1577
1578 if (entry_type == 'A')
1579 alloc += entry_run;
1580 else
1581 alloc -= entry_run;
1582 entry_id++;
1583 }
1584 if (alloc != space_map_allocated(sm)) {
1585 (void) printf("space_map_object alloc (%lld) INCONSISTENT "
1586 "with space map summary (%lld)\n",
1587 (longlong_t)space_map_allocated(sm), (longlong_t)alloc);
1588 }
1589 }
1590
1591 static void
1592 dump_metaslab_stats(metaslab_t *msp)
1593 {
1594 char maxbuf[32];
1595 range_tree_t *rt = msp->ms_allocatable;
1596 zfs_btree_t *t = &msp->ms_allocatable_by_size;
1597 int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
1598
1599 /* max sure nicenum has enough space */
1600 CTASSERT(sizeof (maxbuf) >= NN_NUMBUF_SZ);
1601
1602 zdb_nicenum(metaslab_largest_allocatable(msp), maxbuf, sizeof (maxbuf));
1603
1604 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
1605 "segments", zfs_btree_numnodes(t), "maxsize", maxbuf,
1606 "freepct", free_pct);
1607 (void) printf("\tIn-memory histogram:\n");
1608 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
1609 }
1610
1611 static void
1612 dump_metaslab(metaslab_t *msp)
1613 {
1614 vdev_t *vd = msp->ms_group->mg_vd;
1615 spa_t *spa = vd->vdev_spa;
1616 space_map_t *sm = msp->ms_sm;
1617 char freebuf[32];
1618
1619 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf,
1620 sizeof (freebuf));
1621
1622 (void) printf(
1623 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
1624 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
1625 (u_longlong_t)space_map_object(sm), freebuf);
1626
1627 if (dump_opt['m'] > 2 && !dump_opt['L']) {
1628 mutex_enter(&msp->ms_lock);
1629 VERIFY0(metaslab_load(msp));
1630 range_tree_stat_verify(msp->ms_allocatable);
1631 dump_metaslab_stats(msp);
1632 metaslab_unload(msp);
1633 mutex_exit(&msp->ms_lock);
1634 }
1635
1636 if (dump_opt['m'] > 1 && sm != NULL &&
1637 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
1638 /*
1639 * The space map histogram represents free space in chunks
1640 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
1641 */
1642 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n",
1643 (u_longlong_t)msp->ms_fragmentation);
1644 dump_histogram(sm->sm_phys->smp_histogram,
1645 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift);
1646 }
1647
1648 if (vd->vdev_ops == &vdev_draid_ops)
1649 ASSERT3U(msp->ms_size, <=, 1ULL << vd->vdev_ms_shift);
1650 else
1651 ASSERT3U(msp->ms_size, ==, 1ULL << vd->vdev_ms_shift);
1652
1653 dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
1654
1655 if (spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) {
1656 (void) printf("\tFlush data:\n\tunflushed txg=%llu\n\n",
1657 (u_longlong_t)metaslab_unflushed_txg(msp));
1658 }
1659 }
1660
1661 static void
1662 print_vdev_metaslab_header(vdev_t *vd)
1663 {
1664 vdev_alloc_bias_t alloc_bias = vd->vdev_alloc_bias;
1665 const char *bias_str = "";
1666 if (alloc_bias == VDEV_BIAS_LOG || vd->vdev_islog) {
1667 bias_str = VDEV_ALLOC_BIAS_LOG;
1668 } else if (alloc_bias == VDEV_BIAS_SPECIAL) {
1669 bias_str = VDEV_ALLOC_BIAS_SPECIAL;
1670 } else if (alloc_bias == VDEV_BIAS_DEDUP) {
1671 bias_str = VDEV_ALLOC_BIAS_DEDUP;
1672 }
1673
1674 uint64_t ms_flush_data_obj = 0;
1675 if (vd->vdev_top_zap != 0) {
1676 int error = zap_lookup(spa_meta_objset(vd->vdev_spa),
1677 vd->vdev_top_zap, VDEV_TOP_ZAP_MS_UNFLUSHED_PHYS_TXGS,
1678 sizeof (uint64_t), 1, &ms_flush_data_obj);
1679 if (error != ENOENT) {
1680 ASSERT0(error);
1681 }
1682 }
1683
1684 (void) printf("\tvdev %10llu %s",
1685 (u_longlong_t)vd->vdev_id, bias_str);
1686
1687 if (ms_flush_data_obj != 0) {
1688 (void) printf(" ms_unflushed_phys object %llu",
1689 (u_longlong_t)ms_flush_data_obj);
1690 }
1691
1692 (void) printf("\n\t%-10s%5llu %-19s %-15s %-12s\n",
1693 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
1694 "offset", "spacemap", "free");
1695 (void) printf("\t%15s %19s %15s %12s\n",
1696 "---------------", "-------------------",
1697 "---------------", "------------");
1698 }
1699
1700 static void
1701 dump_metaslab_groups(spa_t *spa)
1702 {
1703 vdev_t *rvd = spa->spa_root_vdev;
1704 metaslab_class_t *mc = spa_normal_class(spa);
1705 uint64_t fragmentation;
1706
1707 metaslab_class_histogram_verify(mc);
1708
1709 for (unsigned c = 0; c < rvd->vdev_children; c++) {
1710 vdev_t *tvd = rvd->vdev_child[c];
1711 metaslab_group_t *mg = tvd->vdev_mg;
1712
1713 if (mg == NULL || mg->mg_class != mc)
1714 continue;
1715
1716 metaslab_group_histogram_verify(mg);
1717 mg->mg_fragmentation = metaslab_group_fragmentation(mg);
1718
1719 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t"
1720 "fragmentation",
1721 (u_longlong_t)tvd->vdev_id,
1722 (u_longlong_t)tvd->vdev_ms_count);
1723 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) {
1724 (void) printf("%3s\n", "-");
1725 } else {
1726 (void) printf("%3llu%%\n",
1727 (u_longlong_t)mg->mg_fragmentation);
1728 }
1729 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
1730 }
1731
1732 (void) printf("\tpool %s\tfragmentation", spa_name(spa));
1733 fragmentation = metaslab_class_fragmentation(mc);
1734 if (fragmentation == ZFS_FRAG_INVALID)
1735 (void) printf("\t%3s\n", "-");
1736 else
1737 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation);
1738 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
1739 }
1740
1741 static void
1742 print_vdev_indirect(vdev_t *vd)
1743 {
1744 vdev_indirect_config_t *vic = &vd->vdev_indirect_config;
1745 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
1746 vdev_indirect_births_t *vib = vd->vdev_indirect_births;
1747
1748 if (vim == NULL) {
1749 ASSERT3P(vib, ==, NULL);
1750 return;
1751 }
1752
1753 ASSERT3U(vdev_indirect_mapping_object(vim), ==,
1754 vic->vic_mapping_object);
1755 ASSERT3U(vdev_indirect_births_object(vib), ==,
1756 vic->vic_births_object);
1757
1758 (void) printf("indirect births obj %llu:\n",
1759 (longlong_t)vic->vic_births_object);
1760 (void) printf(" vib_count = %llu\n",
1761 (longlong_t)vdev_indirect_births_count(vib));
1762 for (uint64_t i = 0; i < vdev_indirect_births_count(vib); i++) {
1763 vdev_indirect_birth_entry_phys_t *cur_vibe =
1764 &vib->vib_entries[i];
1765 (void) printf("\toffset %llx -> txg %llu\n",
1766 (longlong_t)cur_vibe->vibe_offset,
1767 (longlong_t)cur_vibe->vibe_phys_birth_txg);
1768 }
1769 (void) printf("\n");
1770
1771 (void) printf("indirect mapping obj %llu:\n",
1772 (longlong_t)vic->vic_mapping_object);
1773 (void) printf(" vim_max_offset = 0x%llx\n",
1774 (longlong_t)vdev_indirect_mapping_max_offset(vim));
1775 (void) printf(" vim_bytes_mapped = 0x%llx\n",
1776 (longlong_t)vdev_indirect_mapping_bytes_mapped(vim));
1777 (void) printf(" vim_count = %llu\n",
1778 (longlong_t)vdev_indirect_mapping_num_entries(vim));
1779
1780 if (dump_opt['d'] <= 5 && dump_opt['m'] <= 3)
1781 return;
1782
1783 uint32_t *counts = vdev_indirect_mapping_load_obsolete_counts(vim);
1784
1785 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) {
1786 vdev_indirect_mapping_entry_phys_t *vimep =
1787 &vim->vim_entries[i];
1788 (void) printf("\t<%llx:%llx:%llx> -> "
1789 "<%llx:%llx:%llx> (%x obsolete)\n",
1790 (longlong_t)vd->vdev_id,
1791 (longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep),
1792 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst),
1793 (longlong_t)DVA_GET_VDEV(&vimep->vimep_dst),
1794 (longlong_t)DVA_GET_OFFSET(&vimep->vimep_dst),
1795 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst),
1796 counts[i]);
1797 }
1798 (void) printf("\n");
1799
1800 uint64_t obsolete_sm_object;
1801 VERIFY0(vdev_obsolete_sm_object(vd, &obsolete_sm_object));
1802 if (obsolete_sm_object != 0) {
1803 objset_t *mos = vd->vdev_spa->spa_meta_objset;
1804 (void) printf("obsolete space map object %llu:\n",
1805 (u_longlong_t)obsolete_sm_object);
1806 ASSERT(vd->vdev_obsolete_sm != NULL);
1807 ASSERT3U(space_map_object(vd->vdev_obsolete_sm), ==,
1808 obsolete_sm_object);
1809 dump_spacemap(mos, vd->vdev_obsolete_sm);
1810 (void) printf("\n");
1811 }
1812 }
1813
1814 static void
1815 dump_metaslabs(spa_t *spa)
1816 {
1817 vdev_t *vd, *rvd = spa->spa_root_vdev;
1818 uint64_t m, c = 0, children = rvd->vdev_children;
1819
1820 (void) printf("\nMetaslabs:\n");
1821
1822 if (!dump_opt['d'] && zopt_metaslab_args > 0) {
1823 c = zopt_metaslab[0];
1824
1825 if (c >= children)
1826 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
1827
1828 if (zopt_metaslab_args > 1) {
1829 vd = rvd->vdev_child[c];
1830 print_vdev_metaslab_header(vd);
1831
1832 for (m = 1; m < zopt_metaslab_args; m++) {
1833 if (zopt_metaslab[m] < vd->vdev_ms_count)
1834 dump_metaslab(
1835 vd->vdev_ms[zopt_metaslab[m]]);
1836 else
1837 (void) fprintf(stderr, "bad metaslab "
1838 "number %llu\n",
1839 (u_longlong_t)zopt_metaslab[m]);
1840 }
1841 (void) printf("\n");
1842 return;
1843 }
1844 children = c + 1;
1845 }
1846 for (; c < children; c++) {
1847 vd = rvd->vdev_child[c];
1848 print_vdev_metaslab_header(vd);
1849
1850 print_vdev_indirect(vd);
1851
1852 for (m = 0; m < vd->vdev_ms_count; m++)
1853 dump_metaslab(vd->vdev_ms[m]);
1854 (void) printf("\n");
1855 }
1856 }
1857
1858 static void
1859 dump_log_spacemaps(spa_t *spa)
1860 {
1861 if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP))
1862 return;
1863
1864 (void) printf("\nLog Space Maps in Pool:\n");
1865 for (spa_log_sm_t *sls = avl_first(&spa->spa_sm_logs_by_txg);
1866 sls; sls = AVL_NEXT(&spa->spa_sm_logs_by_txg, sls)) {
1867 space_map_t *sm = NULL;
1868 VERIFY0(space_map_open(&sm, spa_meta_objset(spa),
1869 sls->sls_sm_obj, 0, UINT64_MAX, SPA_MINBLOCKSHIFT));
1870
1871 (void) printf("Log Spacemap object %llu txg %llu\n",
1872 (u_longlong_t)sls->sls_sm_obj, (u_longlong_t)sls->sls_txg);
1873 dump_spacemap(spa->spa_meta_objset, sm);
1874 space_map_close(sm);
1875 }
1876 (void) printf("\n");
1877 }
1878
1879 static void
1880 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
1881 {
1882 const ddt_phys_t *ddp = dde->dde_phys;
1883 const ddt_key_t *ddk = &dde->dde_key;
1884 const char *types[4] = { "ditto", "single", "double", "triple" };
1885 char blkbuf[BP_SPRINTF_LEN];
1886 blkptr_t blk;
1887 int p;
1888
1889 for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
1890 if (ddp->ddp_phys_birth == 0)
1891 continue;
1892 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
1893 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
1894 (void) printf("index %llx refcnt %llu %s %s\n",
1895 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
1896 types[p], blkbuf);
1897 }
1898 }
1899
1900 static void
1901 dump_dedup_ratio(const ddt_stat_t *dds)
1902 {
1903 double rL, rP, rD, D, dedup, compress, copies;
1904
1905 if (dds->dds_blocks == 0)
1906 return;
1907
1908 rL = (double)dds->dds_ref_lsize;
1909 rP = (double)dds->dds_ref_psize;
1910 rD = (double)dds->dds_ref_dsize;
1911 D = (double)dds->dds_dsize;
1912
1913 dedup = rD / D;
1914 compress = rL / rP;
1915 copies = rD / rP;
1916
1917 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
1918 "dedup * compress / copies = %.2f\n\n",
1919 dedup, compress, copies, dedup * compress / copies);
1920 }
1921
1922 static void
1923 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
1924 {
1925 char name[DDT_NAMELEN];
1926 ddt_entry_t dde;
1927 uint64_t walk = 0;
1928 dmu_object_info_t doi;
1929 uint64_t count, dspace, mspace;
1930 int error;
1931
1932 error = ddt_object_info(ddt, type, class, &doi);
1933
1934 if (error == ENOENT)
1935 return;
1936 ASSERT(error == 0);
1937
1938 error = ddt_object_count(ddt, type, class, &count);
1939 ASSERT(error == 0);
1940 if (count == 0)
1941 return;
1942
1943 dspace = doi.doi_physical_blocks_512 << 9;
1944 mspace = doi.doi_fill_count * doi.doi_data_block_size;
1945
1946 ddt_object_name(ddt, type, class, name);
1947
1948 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
1949 name,
1950 (u_longlong_t)count,
1951 (u_longlong_t)(dspace / count),
1952 (u_longlong_t)(mspace / count));
1953
1954 if (dump_opt['D'] < 3)
1955 return;
1956
1957 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
1958
1959 if (dump_opt['D'] < 4)
1960 return;
1961
1962 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
1963 return;
1964
1965 (void) printf("%s contents:\n\n", name);
1966
1967 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
1968 dump_dde(ddt, &dde, walk);
1969
1970 ASSERT3U(error, ==, ENOENT);
1971
1972 (void) printf("\n");
1973 }
1974
1975 static void
1976 dump_all_ddts(spa_t *spa)
1977 {
1978 ddt_histogram_t ddh_total;
1979 ddt_stat_t dds_total;
1980
1981 bzero(&ddh_total, sizeof (ddh_total));
1982 bzero(&dds_total, sizeof (dds_total));
1983
1984 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
1985 ddt_t *ddt = spa->spa_ddt[c];
1986 for (enum ddt_type type = 0; type < DDT_TYPES; type++) {
1987 for (enum ddt_class class = 0; class < DDT_CLASSES;
1988 class++) {
1989 dump_ddt(ddt, type, class);
1990 }
1991 }
1992 }
1993
1994 ddt_get_dedup_stats(spa, &dds_total);
1995
1996 if (dds_total.dds_blocks == 0) {
1997 (void) printf("All DDTs are empty\n");
1998 return;
1999 }
2000
2001 (void) printf("\n");
2002
2003 if (dump_opt['D'] > 1) {
2004 (void) printf("DDT histogram (aggregated over all DDTs):\n");
2005 ddt_get_dedup_histogram(spa, &ddh_total);
2006 zpool_dump_ddt(&dds_total, &ddh_total);
2007 }
2008
2009 dump_dedup_ratio(&dds_total);
2010 }
2011
2012 static void
2013 dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
2014 {
2015 char *prefix = arg;
2016
2017 (void) printf("%s [%llu,%llu) length %llu\n",
2018 prefix,
2019 (u_longlong_t)start,
2020 (u_longlong_t)(start + size),
2021 (u_longlong_t)(size));
2022 }
2023
2024 static void
2025 dump_dtl(vdev_t *vd, int indent)
2026 {
2027 spa_t *spa = vd->vdev_spa;
2028 boolean_t required;
2029 const char *name[DTL_TYPES] = { "missing", "partial", "scrub",
2030 "outage" };
2031 char prefix[256];
2032
2033 spa_vdev_state_enter(spa, SCL_NONE);
2034 required = vdev_dtl_required(vd);
2035 (void) spa_vdev_state_exit(spa, NULL, 0);
2036
2037 if (indent == 0)
2038 (void) printf("\nDirty time logs:\n\n");
2039
2040 (void) printf("\t%*s%s [%s]\n", indent, "",
2041 vd->vdev_path ? vd->vdev_path :
2042 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
2043 required ? "DTL-required" : "DTL-expendable");
2044
2045 for (int t = 0; t < DTL_TYPES; t++) {
2046 range_tree_t *rt = vd->vdev_dtl[t];
2047 if (range_tree_space(rt) == 0)
2048 continue;
2049 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
2050 indent + 2, "", name[t]);
2051 range_tree_walk(rt, dump_dtl_seg, prefix);
2052 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
2053 dump_spacemap(spa->spa_meta_objset,
2054 vd->vdev_dtl_sm);
2055 }
2056
2057 for (unsigned c = 0; c < vd->vdev_children; c++)
2058 dump_dtl(vd->vdev_child[c], indent + 4);
2059 }
2060
2061 static void
2062 dump_history(spa_t *spa)
2063 {
2064 nvlist_t **events = NULL;
2065 char *buf;
2066 uint64_t resid, len, off = 0;
2067 uint_t num = 0;
2068 int error;
2069 time_t tsec;
2070 struct tm t;
2071 char tbuf[30];
2072 char internalstr[MAXPATHLEN];
2073
2074 if ((buf = malloc(SPA_OLD_MAXBLOCKSIZE)) == NULL) {
2075 (void) fprintf(stderr, "%s: unable to allocate I/O buffer\n",
2076 __func__);
2077 return;
2078 }
2079
2080 do {
2081 len = SPA_OLD_MAXBLOCKSIZE;
2082
2083 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
2084 (void) fprintf(stderr, "Unable to read history: "
2085 "error %d\n", error);
2086 free(buf);
2087 return;
2088 }
2089
2090 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
2091 break;
2092
2093 off -= resid;
2094 } while (len != 0);
2095
2096 (void) printf("\nHistory:\n");
2097 for (unsigned i = 0; i < num; i++) {
2098 uint64_t time, txg, ievent;
2099 char *cmd, *intstr;
2100 boolean_t printed = B_FALSE;
2101
2102 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
2103 &time) != 0)
2104 goto next;
2105 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
2106 &cmd) != 0) {
2107 if (nvlist_lookup_uint64(events[i],
2108 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
2109 goto next;
2110 verify(nvlist_lookup_uint64(events[i],
2111 ZPOOL_HIST_TXG, &txg) == 0);
2112 verify(nvlist_lookup_string(events[i],
2113 ZPOOL_HIST_INT_STR, &intstr) == 0);
2114 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
2115 goto next;
2116
2117 (void) snprintf(internalstr,
2118 sizeof (internalstr),
2119 "[internal %s txg:%lld] %s",
2120 zfs_history_event_names[ievent],
2121 (longlong_t)txg, intstr);
2122 cmd = internalstr;
2123 }
2124 tsec = time;
2125 (void) localtime_r(&tsec, &t);
2126 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
2127 (void) printf("%s %s\n", tbuf, cmd);
2128 printed = B_TRUE;
2129
2130 next:
2131 if (dump_opt['h'] > 1) {
2132 if (!printed)
2133 (void) printf("unrecognized record:\n");
2134 dump_nvlist(events[i], 2);
2135 }
2136 }
2137 free(buf);
2138 }
2139
2140 /*ARGSUSED*/
2141 static void
2142 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
2143 {
2144 }
2145
2146 static uint64_t
2147 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp,
2148 const zbookmark_phys_t *zb)
2149 {
2150 if (dnp == NULL) {
2151 ASSERT(zb->zb_level < 0);
2152 if (zb->zb_object == 0)
2153 return (zb->zb_blkid);
2154 return (zb->zb_blkid * BP_GET_LSIZE(bp));
2155 }
2156
2157 ASSERT(zb->zb_level >= 0);
2158
2159 return ((zb->zb_blkid <<
2160 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
2161 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
2162 }
2163
2164 static void
2165 snprintf_zstd_header(spa_t *spa, char *blkbuf, size_t buflen,
2166 const blkptr_t *bp)
2167 {
2168 abd_t *pabd;
2169 void *buf;
2170 zio_t *zio;
2171 zfs_zstdhdr_t zstd_hdr;
2172 int error;
2173
2174 if (BP_GET_COMPRESS(bp) != ZIO_COMPRESS_ZSTD)
2175 return;
2176
2177 if (BP_IS_HOLE(bp))
2178 return;
2179
2180 if (BP_IS_EMBEDDED(bp)) {
2181 buf = malloc(SPA_MAXBLOCKSIZE);
2182 if (buf == NULL) {
2183 (void) fprintf(stderr, "out of memory\n");
2184 exit(1);
2185 }
2186 decode_embedded_bp_compressed(bp, buf);
2187 memcpy(&zstd_hdr, buf, sizeof (zstd_hdr));
2188 free(buf);
2189 zstd_hdr.c_len = BE_32(zstd_hdr.c_len);
2190 zstd_hdr.raw_version_level = BE_32(zstd_hdr.raw_version_level);
2191 (void) snprintf(blkbuf + strlen(blkbuf),
2192 buflen - strlen(blkbuf),
2193 " ZSTD:size=%u:version=%u:level=%u:EMBEDDED",
2194 zstd_hdr.c_len, zstd_hdr.version, zstd_hdr.level);
2195 return;
2196 }
2197
2198 pabd = abd_alloc_for_io(SPA_MAXBLOCKSIZE, B_FALSE);
2199 zio = zio_root(spa, NULL, NULL, 0);
2200
2201 /* Decrypt but don't decompress so we can read the compression header */
2202 zio_nowait(zio_read(zio, spa, bp, pabd, BP_GET_PSIZE(bp), NULL, NULL,
2203 ZIO_PRIORITY_SYNC_READ, ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW_COMPRESS,
2204 NULL));
2205 error = zio_wait(zio);
2206 if (error) {
2207 (void) fprintf(stderr, "read failed: %d\n", error);
2208 return;
2209 }
2210 buf = abd_borrow_buf_copy(pabd, BP_GET_LSIZE(bp));
2211 memcpy(&zstd_hdr, buf, sizeof (zstd_hdr));
2212 zstd_hdr.c_len = BE_32(zstd_hdr.c_len);
2213 zstd_hdr.raw_version_level = BE_32(zstd_hdr.raw_version_level);
2214
2215 (void) snprintf(blkbuf + strlen(blkbuf),
2216 buflen - strlen(blkbuf),
2217 " ZSTD:size=%u:version=%u:level=%u:NORMAL",
2218 zstd_hdr.c_len, zstd_hdr.version, zstd_hdr.level);
2219
2220 abd_return_buf_copy(pabd, buf, BP_GET_LSIZE(bp));
2221 }
2222
2223 static void
2224 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp,
2225 boolean_t bp_freed)
2226 {
2227 const dva_t *dva = bp->blk_dva;
2228 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
2229 int i;
2230
2231 if (dump_opt['b'] >= 6) {
2232 snprintf_blkptr(blkbuf, buflen, bp);
2233 if (bp_freed) {
2234 (void) snprintf(blkbuf + strlen(blkbuf),
2235 buflen - strlen(blkbuf), " %s", "FREE");
2236 }
2237 return;
2238 }
2239
2240 if (BP_IS_EMBEDDED(bp)) {
2241 (void) sprintf(blkbuf,
2242 "EMBEDDED et=%u %llxL/%llxP B=%llu",
2243 (int)BPE_GET_ETYPE(bp),
2244 (u_longlong_t)BPE_GET_LSIZE(bp),
2245 (u_longlong_t)BPE_GET_PSIZE(bp),
2246 (u_longlong_t)bp->blk_birth);
2247 return;
2248 }
2249
2250 blkbuf[0] = '\0';
2251
2252 for (i = 0; i < ndvas; i++)
2253 (void) snprintf(blkbuf + strlen(blkbuf),
2254 buflen - strlen(blkbuf), "%llu:%llx:%llx ",
2255 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
2256 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
2257 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
2258
2259 if (BP_IS_HOLE(bp)) {
2260 (void) snprintf(blkbuf + strlen(blkbuf),
2261 buflen - strlen(blkbuf),
2262 "%llxL B=%llu",
2263 (u_longlong_t)BP_GET_LSIZE(bp),
2264 (u_longlong_t)bp->blk_birth);
2265 } else {
2266 (void) snprintf(blkbuf + strlen(blkbuf),
2267 buflen - strlen(blkbuf),
2268 "%llxL/%llxP F=%llu B=%llu/%llu",
2269 (u_longlong_t)BP_GET_LSIZE(bp),
2270 (u_longlong_t)BP_GET_PSIZE(bp),
2271 (u_longlong_t)BP_GET_FILL(bp),
2272 (u_longlong_t)bp->blk_birth,
2273 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
2274 if (bp_freed)
2275 (void) snprintf(blkbuf + strlen(blkbuf),
2276 buflen - strlen(blkbuf), " %s", "FREE");
2277 (void) snprintf(blkbuf + strlen(blkbuf),
2278 buflen - strlen(blkbuf), " cksum=%llx:%llx:%llx:%llx",
2279 (u_longlong_t)bp->blk_cksum.zc_word[0],
2280 (u_longlong_t)bp->blk_cksum.zc_word[1],
2281 (u_longlong_t)bp->blk_cksum.zc_word[2],
2282 (u_longlong_t)bp->blk_cksum.zc_word[3]);
2283 }
2284 }
2285
2286 static void
2287 print_indirect(spa_t *spa, blkptr_t *bp, const zbookmark_phys_t *zb,
2288 const dnode_phys_t *dnp)
2289 {
2290 char blkbuf[BP_SPRINTF_LEN];
2291 int l;
2292
2293 if (!BP_IS_EMBEDDED(bp)) {
2294 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
2295 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
2296 }
2297
2298 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
2299
2300 ASSERT(zb->zb_level >= 0);
2301
2302 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
2303 if (l == zb->zb_level) {
2304 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
2305 } else {
2306 (void) printf(" ");
2307 }
2308 }
2309
2310 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp, B_FALSE);
2311 if (dump_opt['Z'] && BP_GET_COMPRESS(bp) == ZIO_COMPRESS_ZSTD)
2312 snprintf_zstd_header(spa, blkbuf, sizeof (blkbuf), bp);
2313 (void) printf("%s\n", blkbuf);
2314 }
2315
2316 static int
2317 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
2318 blkptr_t *bp, const zbookmark_phys_t *zb)
2319 {
2320 int err = 0;
2321
2322 if (bp->blk_birth == 0)
2323 return (0);
2324
2325 print_indirect(spa, bp, zb, dnp);
2326
2327 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
2328 arc_flags_t flags = ARC_FLAG_WAIT;
2329 int i;
2330 blkptr_t *cbp;
2331 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
2332 arc_buf_t *buf;
2333 uint64_t fill = 0;
2334 ASSERT(!BP_IS_REDACTED(bp));
2335
2336 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
2337 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
2338 if (err)
2339 return (err);
2340 ASSERT(buf->b_data);
2341
2342 /* recursively visit blocks below this */
2343 cbp = buf->b_data;
2344 for (i = 0; i < epb; i++, cbp++) {
2345 zbookmark_phys_t czb;
2346
2347 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
2348 zb->zb_level - 1,
2349 zb->zb_blkid * epb + i);
2350 err = visit_indirect(spa, dnp, cbp, &czb);
2351 if (err)
2352 break;
2353 fill += BP_GET_FILL(cbp);
2354 }
2355 if (!err)
2356 ASSERT3U(fill, ==, BP_GET_FILL(bp));
2357 arc_buf_destroy(buf, &buf);
2358 }
2359
2360 return (err);
2361 }
2362
2363 /*ARGSUSED*/
2364 static void
2365 dump_indirect(dnode_t *dn)
2366 {
2367 dnode_phys_t *dnp = dn->dn_phys;
2368 int j;
2369 zbookmark_phys_t czb;
2370
2371 (void) printf("Indirect blocks:\n");
2372
2373 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
2374 dn->dn_object, dnp->dn_nlevels - 1, 0);
2375 for (j = 0; j < dnp->dn_nblkptr; j++) {
2376 czb.zb_blkid = j;
2377 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
2378 &dnp->dn_blkptr[j], &czb);
2379 }
2380
2381 (void) printf("\n");
2382 }
2383
2384 /*ARGSUSED*/
2385 static void
2386 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
2387 {
2388 dsl_dir_phys_t *dd = data;
2389 time_t crtime;
2390 char nice[32];
2391
2392 /* make sure nicenum has enough space */
2393 CTASSERT(sizeof (nice) >= NN_NUMBUF_SZ);
2394
2395 if (dd == NULL)
2396 return;
2397
2398 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
2399
2400 crtime = dd->dd_creation_time;
2401 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
2402 (void) printf("\t\thead_dataset_obj = %llu\n",
2403 (u_longlong_t)dd->dd_head_dataset_obj);
2404 (void) printf("\t\tparent_dir_obj = %llu\n",
2405 (u_longlong_t)dd->dd_parent_obj);
2406 (void) printf("\t\torigin_obj = %llu\n",
2407 (u_longlong_t)dd->dd_origin_obj);
2408 (void) printf("\t\tchild_dir_zapobj = %llu\n",
2409 (u_longlong_t)dd->dd_child_dir_zapobj);
2410 zdb_nicenum(dd->dd_used_bytes, nice, sizeof (nice));
2411 (void) printf("\t\tused_bytes = %s\n", nice);
2412 zdb_nicenum(dd->dd_compressed_bytes, nice, sizeof (nice));
2413 (void) printf("\t\tcompressed_bytes = %s\n", nice);
2414 zdb_nicenum(dd->dd_uncompressed_bytes, nice, sizeof (nice));
2415 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
2416 zdb_nicenum(dd->dd_quota, nice, sizeof (nice));
2417 (void) printf("\t\tquota = %s\n", nice);
2418 zdb_nicenum(dd->dd_reserved, nice, sizeof (nice));
2419 (void) printf("\t\treserved = %s\n", nice);
2420 (void) printf("\t\tprops_zapobj = %llu\n",
2421 (u_longlong_t)dd->dd_props_zapobj);
2422 (void) printf("\t\tdeleg_zapobj = %llu\n",
2423 (u_longlong_t)dd->dd_deleg_zapobj);
2424 (void) printf("\t\tflags = %llx\n",
2425 (u_longlong_t)dd->dd_flags);
2426
2427 #define DO(which) \
2428 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice, \
2429 sizeof (nice)); \
2430 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
2431 DO(HEAD);
2432 DO(SNAP);
2433 DO(CHILD);
2434 DO(CHILD_RSRV);
2435 DO(REFRSRV);
2436 #undef DO
2437 (void) printf("\t\tclones = %llu\n",
2438 (u_longlong_t)dd->dd_clones);
2439 }
2440
2441 /*ARGSUSED*/
2442 static void
2443 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
2444 {
2445 dsl_dataset_phys_t *ds = data;
2446 time_t crtime;
2447 char used[32], compressed[32], uncompressed[32], unique[32];
2448 char blkbuf[BP_SPRINTF_LEN];
2449
2450 /* make sure nicenum has enough space */
2451 CTASSERT(sizeof (used) >= NN_NUMBUF_SZ);
2452 CTASSERT(sizeof (compressed) >= NN_NUMBUF_SZ);
2453 CTASSERT(sizeof (uncompressed) >= NN_NUMBUF_SZ);
2454 CTASSERT(sizeof (unique) >= NN_NUMBUF_SZ);
2455
2456 if (ds == NULL)
2457 return;
2458
2459 ASSERT(size == sizeof (*ds));
2460 crtime = ds->ds_creation_time;
2461 zdb_nicenum(ds->ds_referenced_bytes, used, sizeof (used));
2462 zdb_nicenum(ds->ds_compressed_bytes, compressed, sizeof (compressed));
2463 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed,
2464 sizeof (uncompressed));
2465 zdb_nicenum(ds->ds_unique_bytes, unique, sizeof (unique));
2466 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
2467
2468 (void) printf("\t\tdir_obj = %llu\n",
2469 (u_longlong_t)ds->ds_dir_obj);
2470 (void) printf("\t\tprev_snap_obj = %llu\n",
2471 (u_longlong_t)ds->ds_prev_snap_obj);
2472 (void) printf("\t\tprev_snap_txg = %llu\n",
2473 (u_longlong_t)ds->ds_prev_snap_txg);
2474 (void) printf("\t\tnext_snap_obj = %llu\n",
2475 (u_longlong_t)ds->ds_next_snap_obj);
2476 (void) printf("\t\tsnapnames_zapobj = %llu\n",
2477 (u_longlong_t)ds->ds_snapnames_zapobj);
2478 (void) printf("\t\tnum_children = %llu\n",
2479 (u_longlong_t)ds->ds_num_children);
2480 (void) printf("\t\tuserrefs_obj = %llu\n",
2481 (u_longlong_t)ds->ds_userrefs_obj);
2482 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
2483 (void) printf("\t\tcreation_txg = %llu\n",
2484 (u_longlong_t)ds->ds_creation_txg);
2485 (void) printf("\t\tdeadlist_obj = %llu\n",
2486 (u_longlong_t)ds->ds_deadlist_obj);
2487 (void) printf("\t\tused_bytes = %s\n", used);
2488 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
2489 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
2490 (void) printf("\t\tunique = %s\n", unique);
2491 (void) printf("\t\tfsid_guid = %llu\n",
2492 (u_longlong_t)ds->ds_fsid_guid);
2493 (void) printf("\t\tguid = %llu\n",
2494 (u_longlong_t)ds->ds_guid);
2495 (void) printf("\t\tflags = %llx\n",
2496 (u_longlong_t)ds->ds_flags);
2497 (void) printf("\t\tnext_clones_obj = %llu\n",
2498 (u_longlong_t)ds->ds_next_clones_obj);
2499 (void) printf("\t\tprops_obj = %llu\n",
2500 (u_longlong_t)ds->ds_props_obj);
2501 (void) printf("\t\tbp = %s\n", blkbuf);
2502 }
2503
2504 /* ARGSUSED */
2505 static int
2506 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2507 {
2508 char blkbuf[BP_SPRINTF_LEN];
2509
2510 if (bp->blk_birth != 0) {
2511 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2512 (void) printf("\t%s\n", blkbuf);
2513 }
2514 return (0);
2515 }
2516
2517 static void
2518 dump_bptree(objset_t *os, uint64_t obj, const char *name)
2519 {
2520 char bytes[32];
2521 bptree_phys_t *bt;
2522 dmu_buf_t *db;
2523
2524 /* make sure nicenum has enough space */
2525 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
2526
2527 if (dump_opt['d'] < 3)
2528 return;
2529
2530 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
2531 bt = db->db_data;
2532 zdb_nicenum(bt->bt_bytes, bytes, sizeof (bytes));
2533 (void) printf("\n %s: %llu datasets, %s\n",
2534 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
2535 dmu_buf_rele(db, FTAG);
2536
2537 if (dump_opt['d'] < 5)
2538 return;
2539
2540 (void) printf("\n");
2541
2542 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
2543 }
2544
2545 /* ARGSUSED */
2546 static int
2547 dump_bpobj_cb(void *arg, const blkptr_t *bp, boolean_t bp_freed, dmu_tx_t *tx)
2548 {
2549 char blkbuf[BP_SPRINTF_LEN];
2550
2551 ASSERT(bp->blk_birth != 0);
2552 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp, bp_freed);
2553 (void) printf("\t%s\n", blkbuf);
2554 return (0);
2555 }
2556
2557 static void
2558 dump_full_bpobj(bpobj_t *bpo, const char *name, int indent)
2559 {
2560 char bytes[32];
2561 char comp[32];
2562 char uncomp[32];
2563 uint64_t i;
2564
2565 /* make sure nicenum has enough space */
2566 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
2567 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
2568 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
2569
2570 if (dump_opt['d'] < 3)
2571 return;
2572
2573 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes, sizeof (bytes));
2574 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
2575 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp, sizeof (comp));
2576 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp, sizeof (uncomp));
2577 if (bpo->bpo_havefreed) {
2578 (void) printf(" %*s: object %llu, %llu local "
2579 "blkptrs, %llu freed, %llu subobjs in object %llu, "
2580 "%s (%s/%s comp)\n",
2581 indent * 8, name,
2582 (u_longlong_t)bpo->bpo_object,
2583 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
2584 (u_longlong_t)bpo->bpo_phys->bpo_num_freed,
2585 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
2586 (u_longlong_t)bpo->bpo_phys->bpo_subobjs,
2587 bytes, comp, uncomp);
2588 } else {
2589 (void) printf(" %*s: object %llu, %llu local "
2590 "blkptrs, %llu subobjs in object %llu, "
2591 "%s (%s/%s comp)\n",
2592 indent * 8, name,
2593 (u_longlong_t)bpo->bpo_object,
2594 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
2595 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
2596 (u_longlong_t)bpo->bpo_phys->bpo_subobjs,
2597 bytes, comp, uncomp);
2598 }
2599
2600 for (i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
2601 uint64_t subobj;
2602 bpobj_t subbpo;
2603 int error;
2604 VERIFY0(dmu_read(bpo->bpo_os,
2605 bpo->bpo_phys->bpo_subobjs,
2606 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
2607 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
2608 if (error != 0) {
2609 (void) printf("ERROR %u while trying to open "
2610 "subobj id %llu\n",
2611 error, (u_longlong_t)subobj);
2612 continue;
2613 }
2614 dump_full_bpobj(&subbpo, "subobj", indent + 1);
2615 bpobj_close(&subbpo);
2616 }
2617 } else {
2618 if (bpo->bpo_havefreed) {
2619 (void) printf(" %*s: object %llu, %llu blkptrs, "
2620 "%llu freed, %s\n",
2621 indent * 8, name,
2622 (u_longlong_t)bpo->bpo_object,
2623 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
2624 (u_longlong_t)bpo->bpo_phys->bpo_num_freed,
2625 bytes);
2626 } else {
2627 (void) printf(" %*s: object %llu, %llu blkptrs, "
2628 "%s\n",
2629 indent * 8, name,
2630 (u_longlong_t)bpo->bpo_object,
2631 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
2632 bytes);
2633 }
2634 }
2635
2636 if (dump_opt['d'] < 5)
2637 return;
2638
2639
2640 if (indent == 0) {
2641 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
2642 (void) printf("\n");
2643 }
2644 }
2645
2646 static int
2647 dump_bookmark(dsl_pool_t *dp, char *name, boolean_t print_redact,
2648 boolean_t print_list)
2649 {
2650 int err = 0;
2651 zfs_bookmark_phys_t prop;
2652 objset_t *mos = dp->dp_spa->spa_meta_objset;
2653 err = dsl_bookmark_lookup(dp, name, NULL, &prop);
2654
2655 if (err != 0) {
2656 return (err);
2657 }
2658
2659 (void) printf("\t#%s: ", strchr(name, '#') + 1);
2660 (void) printf("{guid: %llx creation_txg: %llu creation_time: "
2661 "%llu redaction_obj: %llu}\n", (u_longlong_t)prop.zbm_guid,
2662 (u_longlong_t)prop.zbm_creation_txg,
2663 (u_longlong_t)prop.zbm_creation_time,
2664 (u_longlong_t)prop.zbm_redaction_obj);
2665
2666 IMPLY(print_list, print_redact);
2667 if (!print_redact || prop.zbm_redaction_obj == 0)
2668 return (0);
2669
2670 redaction_list_t *rl;
2671 VERIFY0(dsl_redaction_list_hold_obj(dp,
2672 prop.zbm_redaction_obj, FTAG, &rl));
2673
2674 redaction_list_phys_t *rlp = rl->rl_phys;
2675 (void) printf("\tRedacted:\n\t\tProgress: ");
2676 if (rlp->rlp_last_object != UINT64_MAX ||
2677 rlp->rlp_last_blkid != UINT64_MAX) {
2678 (void) printf("%llu %llu (incomplete)\n",
2679 (u_longlong_t)rlp->rlp_last_object,
2680 (u_longlong_t)rlp->rlp_last_blkid);
2681 } else {
2682 (void) printf("complete\n");
2683 }
2684 (void) printf("\t\tSnapshots: [");
2685 for (unsigned int i = 0; i < rlp->rlp_num_snaps; i++) {
2686 if (i > 0)
2687 (void) printf(", ");
2688 (void) printf("%0llu",
2689 (u_longlong_t)rlp->rlp_snaps[i]);
2690 }
2691 (void) printf("]\n\t\tLength: %llu\n",
2692 (u_longlong_t)rlp->rlp_num_entries);
2693
2694 if (!print_list) {
2695 dsl_redaction_list_rele(rl, FTAG);
2696 return (0);
2697 }
2698
2699 if (rlp->rlp_num_entries == 0) {
2700 dsl_redaction_list_rele(rl, FTAG);
2701 (void) printf("\t\tRedaction List: []\n\n");
2702 return (0);
2703 }
2704
2705 redact_block_phys_t *rbp_buf;
2706 uint64_t size;
2707 dmu_object_info_t doi;
2708
2709 VERIFY0(dmu_object_info(mos, prop.zbm_redaction_obj, &doi));
2710 size = doi.doi_max_offset;
2711 rbp_buf = kmem_alloc(size, KM_SLEEP);
2712
2713 err = dmu_read(mos, prop.zbm_redaction_obj, 0, size,
2714 rbp_buf, 0);
2715 if (err != 0) {
2716 dsl_redaction_list_rele(rl, FTAG);
2717 kmem_free(rbp_buf, size);
2718 return (err);
2719 }
2720
2721 (void) printf("\t\tRedaction List: [{object: %llx, offset: "
2722 "%llx, blksz: %x, count: %llx}",
2723 (u_longlong_t)rbp_buf[0].rbp_object,
2724 (u_longlong_t)rbp_buf[0].rbp_blkid,
2725 (uint_t)(redact_block_get_size(&rbp_buf[0])),
2726 (u_longlong_t)redact_block_get_count(&rbp_buf[0]));
2727
2728 for (size_t i = 1; i < rlp->rlp_num_entries; i++) {
2729 (void) printf(",\n\t\t{object: %llx, offset: %llx, "
2730 "blksz: %x, count: %llx}",
2731 (u_longlong_t)rbp_buf[i].rbp_object,
2732 (u_longlong_t)rbp_buf[i].rbp_blkid,
2733 (uint_t)(redact_block_get_size(&rbp_buf[i])),
2734 (u_longlong_t)redact_block_get_count(&rbp_buf[i]));
2735 }
2736 dsl_redaction_list_rele(rl, FTAG);
2737 kmem_free(rbp_buf, size);
2738 (void) printf("]\n\n");
2739 return (0);
2740 }
2741
2742 static void
2743 dump_bookmarks(objset_t *os, int verbosity)
2744 {
2745 zap_cursor_t zc;
2746 zap_attribute_t attr;
2747 dsl_dataset_t *ds = dmu_objset_ds(os);
2748 dsl_pool_t *dp = spa_get_dsl(os->os_spa);
2749 objset_t *mos = os->os_spa->spa_meta_objset;
2750 if (verbosity < 4)
2751 return;
2752 dsl_pool_config_enter(dp, FTAG);
2753
2754 for (zap_cursor_init(&zc, mos, ds->ds_bookmarks_obj);
2755 zap_cursor_retrieve(&zc, &attr) == 0;
2756 zap_cursor_advance(&zc)) {
2757 char osname[ZFS_MAX_DATASET_NAME_LEN];
2758 char buf[ZFS_MAX_DATASET_NAME_LEN];
2759 dmu_objset_name(os, osname);
2760 VERIFY3S(0, <=, snprintf(buf, sizeof (buf), "%s#%s", osname,
2761 attr.za_name));
2762 (void) dump_bookmark(dp, buf, verbosity >= 5, verbosity >= 6);
2763 }
2764 zap_cursor_fini(&zc);
2765 dsl_pool_config_exit(dp, FTAG);
2766 }
2767
2768 static void
2769 bpobj_count_refd(bpobj_t *bpo)
2770 {
2771 mos_obj_refd(bpo->bpo_object);
2772
2773 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
2774 mos_obj_refd(bpo->bpo_phys->bpo_subobjs);
2775 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
2776 uint64_t subobj;
2777 bpobj_t subbpo;
2778 int error;
2779 VERIFY0(dmu_read(bpo->bpo_os,
2780 bpo->bpo_phys->bpo_subobjs,
2781 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
2782 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
2783 if (error != 0) {
2784 (void) printf("ERROR %u while trying to open "
2785 "subobj id %llu\n",
2786 error, (u_longlong_t)subobj);
2787 continue;
2788 }
2789 bpobj_count_refd(&subbpo);
2790 bpobj_close(&subbpo);
2791 }
2792 }
2793 }
2794
2795 static int
2796 dsl_deadlist_entry_count_refd(void *arg, dsl_deadlist_entry_t *dle)
2797 {
2798 spa_t *spa = arg;
2799 uint64_t empty_bpobj = spa->spa_dsl_pool->dp_empty_bpobj;
2800 if (dle->dle_bpobj.bpo_object != empty_bpobj)
2801 bpobj_count_refd(&dle->dle_bpobj);
2802 return (0);
2803 }
2804
2805 static int
2806 dsl_deadlist_entry_dump(void *arg, dsl_deadlist_entry_t *dle)
2807 {
2808 ASSERT(arg == NULL);
2809 if (dump_opt['d'] >= 5) {
2810 char buf[128];
2811 (void) snprintf(buf, sizeof (buf),
2812 "mintxg %llu -> obj %llu",
2813 (longlong_t)dle->dle_mintxg,
2814 (longlong_t)dle->dle_bpobj.bpo_object);
2815
2816 dump_full_bpobj(&dle->dle_bpobj, buf, 0);
2817 } else {
2818 (void) printf("mintxg %llu -> obj %llu\n",
2819 (longlong_t)dle->dle_mintxg,
2820 (longlong_t)dle->dle_bpobj.bpo_object);
2821 }
2822 return (0);
2823 }
2824
2825 static void
2826 dump_blkptr_list(dsl_deadlist_t *dl, char *name)
2827 {
2828 char bytes[32];
2829 char comp[32];
2830 char uncomp[32];
2831 char entries[32];
2832 spa_t *spa = dmu_objset_spa(dl->dl_os);
2833 uint64_t empty_bpobj = spa->spa_dsl_pool->dp_empty_bpobj;
2834
2835 if (dl->dl_oldfmt) {
2836 if (dl->dl_bpobj.bpo_object != empty_bpobj)
2837 bpobj_count_refd(&dl->dl_bpobj);
2838 } else {
2839 mos_obj_refd(dl->dl_object);
2840 dsl_deadlist_iterate(dl, dsl_deadlist_entry_count_refd, spa);
2841 }
2842
2843 /* make sure nicenum has enough space */
2844 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
2845 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
2846 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
2847 CTASSERT(sizeof (entries) >= NN_NUMBUF_SZ);
2848
2849 if (dump_opt['d'] < 3)
2850 return;
2851
2852 if (dl->dl_oldfmt) {
2853 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0);
2854 return;
2855 }
2856
2857 zdb_nicenum(dl->dl_phys->dl_used, bytes, sizeof (bytes));
2858 zdb_nicenum(dl->dl_phys->dl_comp, comp, sizeof (comp));
2859 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp, sizeof (uncomp));
2860 zdb_nicenum(avl_numnodes(&dl->dl_tree), entries, sizeof (entries));
2861 (void) printf("\n %s: %s (%s/%s comp), %s entries\n",
2862 name, bytes, comp, uncomp, entries);
2863
2864 if (dump_opt['d'] < 4)
2865 return;
2866
2867 (void) printf("\n");
2868
2869 dsl_deadlist_iterate(dl, dsl_deadlist_entry_dump, NULL);
2870 }
2871
2872 static int
2873 verify_dd_livelist(objset_t *os)
2874 {
2875 uint64_t ll_used, used, ll_comp, comp, ll_uncomp, uncomp;
2876 dsl_pool_t *dp = spa_get_dsl(os->os_spa);
2877 dsl_dir_t *dd = os->os_dsl_dataset->ds_dir;
2878
2879 ASSERT(!dmu_objset_is_snapshot(os));
2880 if (!dsl_deadlist_is_open(&dd->dd_livelist))
2881 return (0);
2882
2883 /* Iterate through the livelist to check for duplicates */
2884 dsl_deadlist_iterate(&dd->dd_livelist, sublivelist_verify_lightweight,
2885 NULL);
2886
2887 dsl_pool_config_enter(dp, FTAG);
2888 dsl_deadlist_space(&dd->dd_livelist, &ll_used,
2889 &ll_comp, &ll_uncomp);
2890
2891 dsl_dataset_t *origin_ds;
2892 ASSERT(dsl_pool_config_held(dp));
2893 VERIFY0(dsl_dataset_hold_obj(dp,
2894 dsl_dir_phys(dd)->dd_origin_obj, FTAG, &origin_ds));
2895 VERIFY0(dsl_dataset_space_written(origin_ds, os->os_dsl_dataset,
2896 &used, &comp, &uncomp));
2897 dsl_dataset_rele(origin_ds, FTAG);
2898 dsl_pool_config_exit(dp, FTAG);
2899 /*
2900 * It's possible that the dataset's uncomp space is larger than the
2901 * livelist's because livelists do not track embedded block pointers
2902 */
2903 if (used != ll_used || comp != ll_comp || uncomp < ll_uncomp) {
2904 char nice_used[32], nice_comp[32], nice_uncomp[32];
2905 (void) printf("Discrepancy in space accounting:\n");
2906 zdb_nicenum(used, nice_used, sizeof (nice_used));
2907 zdb_nicenum(comp, nice_comp, sizeof (nice_comp));
2908 zdb_nicenum(uncomp, nice_uncomp, sizeof (nice_uncomp));
2909 (void) printf("dir: used %s, comp %s, uncomp %s\n",
2910 nice_used, nice_comp, nice_uncomp);
2911 zdb_nicenum(ll_used, nice_used, sizeof (nice_used));
2912 zdb_nicenum(ll_comp, nice_comp, sizeof (nice_comp));
2913 zdb_nicenum(ll_uncomp, nice_uncomp, sizeof (nice_uncomp));
2914 (void) printf("livelist: used %s, comp %s, uncomp %s\n",
2915 nice_used, nice_comp, nice_uncomp);
2916 return (1);
2917 }
2918 return (0);
2919 }
2920
2921 static avl_tree_t idx_tree;
2922 static avl_tree_t domain_tree;
2923 static boolean_t fuid_table_loaded;
2924 static objset_t *sa_os = NULL;
2925 static sa_attr_type_t *sa_attr_table = NULL;
2926
2927 static int
2928 open_objset(const char *path, void *tag, objset_t **osp)
2929 {
2930 int err;
2931 uint64_t sa_attrs = 0;
2932 uint64_t version = 0;
2933
2934 VERIFY3P(sa_os, ==, NULL);
2935 /*
2936 * We can't own an objset if it's redacted. Therefore, we do this
2937 * dance: hold the objset, then acquire a long hold on its dataset, then
2938 * release the pool (which is held as part of holding the objset).
2939 */
2940 err = dmu_objset_hold(path, tag, osp);
2941 if (err != 0) {
2942 (void) fprintf(stderr, "failed to hold dataset '%s': %s\n",
2943 path, strerror(err));
2944 return (err);
2945 }
2946 dsl_dataset_long_hold(dmu_objset_ds(*osp), tag);
2947 dsl_pool_rele(dmu_objset_pool(*osp), tag);
2948
2949 if (dmu_objset_type(*osp) == DMU_OST_ZFS && !(*osp)->os_encrypted) {
2950 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR,
2951 8, 1, &version);
2952 if (version >= ZPL_VERSION_SA) {
2953 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
2954 8, 1, &sa_attrs);
2955 }
2956 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END,
2957 &sa_attr_table);
2958 if (err != 0) {
2959 (void) fprintf(stderr, "sa_setup failed: %s\n",
2960 strerror(err));
2961 dsl_dataset_long_rele(dmu_objset_ds(*osp), tag);
2962 dsl_dataset_rele(dmu_objset_ds(*osp), tag);
2963 *osp = NULL;
2964 }
2965 }
2966 sa_os = *osp;
2967
2968 return (0);
2969 }
2970
2971 static void
2972 close_objset(objset_t *os, void *tag)
2973 {
2974 VERIFY3P(os, ==, sa_os);
2975 if (os->os_sa != NULL)
2976 sa_tear_down(os);
2977 dsl_dataset_long_rele(dmu_objset_ds(os), tag);
2978 dsl_dataset_rele(dmu_objset_ds(os), tag);
2979 sa_attr_table = NULL;
2980 sa_os = NULL;
2981 }
2982
2983 static void
2984 fuid_table_destroy(void)
2985 {
2986 if (fuid_table_loaded) {
2987 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
2988 fuid_table_loaded = B_FALSE;
2989 }
2990 }
2991
2992 /*
2993 * print uid or gid information.
2994 * For normal POSIX id just the id is printed in decimal format.
2995 * For CIFS files with FUID the fuid is printed in hex followed by
2996 * the domain-rid string.
2997 */
2998 static void
2999 print_idstr(uint64_t id, const char *id_type)
3000 {
3001 if (FUID_INDEX(id)) {
3002 char *domain;
3003
3004 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
3005 (void) printf("\t%s %llx [%s-%d]\n", id_type,
3006 (u_longlong_t)id, domain, (int)FUID_RID(id));
3007 } else {
3008 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
3009 }
3010
3011 }
3012
3013 static void
3014 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
3015 {
3016 uint32_t uid_idx, gid_idx;
3017
3018 uid_idx = FUID_INDEX(uid);
3019 gid_idx = FUID_INDEX(gid);
3020
3021 /* Load domain table, if not already loaded */
3022 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
3023 uint64_t fuid_obj;
3024
3025 /* first find the fuid object. It lives in the master node */
3026 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
3027 8, 1, &fuid_obj) == 0);
3028 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
3029 (void) zfs_fuid_table_load(os, fuid_obj,
3030 &idx_tree, &domain_tree);
3031 fuid_table_loaded = B_TRUE;
3032 }
3033
3034 print_idstr(uid, "uid");
3035 print_idstr(gid, "gid");
3036 }
3037
3038 static void
3039 dump_znode_sa_xattr(sa_handle_t *hdl)
3040 {
3041 nvlist_t *sa_xattr;
3042 nvpair_t *elem = NULL;
3043 int sa_xattr_size = 0;
3044 int sa_xattr_entries = 0;
3045 int error;
3046 char *sa_xattr_packed;
3047
3048 error = sa_size(hdl, sa_attr_table[ZPL_DXATTR], &sa_xattr_size);
3049 if (error || sa_xattr_size == 0)
3050 return;
3051
3052 sa_xattr_packed = malloc(sa_xattr_size);
3053 if (sa_xattr_packed == NULL)
3054 return;
3055
3056 error = sa_lookup(hdl, sa_attr_table[ZPL_DXATTR],
3057 sa_xattr_packed, sa_xattr_size);
3058 if (error) {
3059 free(sa_xattr_packed);
3060 return;
3061 }
3062
3063 error = nvlist_unpack(sa_xattr_packed, sa_xattr_size, &sa_xattr, 0);
3064 if (error) {
3065 free(sa_xattr_packed);
3066 return;
3067 }
3068
3069 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL)
3070 sa_xattr_entries++;
3071
3072 (void) printf("\tSA xattrs: %d bytes, %d entries\n\n",
3073 sa_xattr_size, sa_xattr_entries);
3074 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL) {
3075 uchar_t *value;
3076 uint_t cnt, idx;
3077
3078 (void) printf("\t\t%s = ", nvpair_name(elem));
3079 nvpair_value_byte_array(elem, &value, &cnt);
3080 for (idx = 0; idx < cnt; ++idx) {
3081 if (isprint(value[idx]))
3082 (void) putchar(value[idx]);
3083 else
3084 (void) printf("\\%3.3o", value[idx]);
3085 }
3086 (void) putchar('\n');
3087 }
3088
3089 nvlist_free(sa_xattr);
3090 free(sa_xattr_packed);
3091 }
3092
3093 static void
3094 dump_znode_symlink(sa_handle_t *hdl)
3095 {
3096 int sa_symlink_size = 0;
3097 char linktarget[MAXPATHLEN];
3098 linktarget[0] = '\0';
3099 int error;
3100
3101 error = sa_size(hdl, sa_attr_table[ZPL_SYMLINK], &sa_symlink_size);
3102 if (error || sa_symlink_size == 0) {
3103 return;
3104 }
3105 if (sa_lookup(hdl, sa_attr_table[ZPL_SYMLINK],
3106 &linktarget, sa_symlink_size) == 0)
3107 (void) printf("\ttarget %s\n", linktarget);
3108 }
3109
3110 /*ARGSUSED*/
3111 static void
3112 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
3113 {
3114 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
3115 sa_handle_t *hdl;
3116 uint64_t xattr, rdev, gen;
3117 uint64_t uid, gid, mode, fsize, parent, links;
3118 uint64_t pflags;
3119 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
3120 time_t z_crtime, z_atime, z_mtime, z_ctime;
3121 sa_bulk_attr_t bulk[12];
3122 int idx = 0;
3123 int error;
3124
3125 VERIFY3P(os, ==, sa_os);
3126 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
3127 (void) printf("Failed to get handle for SA znode\n");
3128 return;
3129 }
3130
3131 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
3132 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
3133 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
3134 &links, 8);
3135 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
3136 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
3137 &mode, 8);
3138 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
3139 NULL, &parent, 8);
3140 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
3141 &fsize, 8);
3142 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
3143 acctm, 16);
3144 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
3145 modtm, 16);
3146 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
3147 crtm, 16);
3148 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
3149 chgtm, 16);
3150 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
3151 &pflags, 8);
3152
3153 if (sa_bulk_lookup(hdl, bulk, idx)) {
3154 (void) sa_handle_destroy(hdl);
3155 return;
3156 }
3157
3158 z_crtime = (time_t)crtm[0];
3159 z_atime = (time_t)acctm[0];
3160 z_mtime = (time_t)modtm[0];
3161 z_ctime = (time_t)chgtm[0];
3162
3163 if (dump_opt['d'] > 4) {
3164 error = zfs_obj_to_path(os, object, path, sizeof (path));
3165 if (error == ESTALE) {
3166 (void) snprintf(path, sizeof (path), "on delete queue");
3167 } else if (error != 0) {
3168 leaked_objects++;
3169 (void) snprintf(path, sizeof (path),
3170 "path not found, possibly leaked");
3171 }
3172 (void) printf("\tpath %s\n", path);
3173 }
3174
3175 if (S_ISLNK(mode))
3176 dump_znode_symlink(hdl);
3177 dump_uidgid(os, uid, gid);
3178 (void) printf("\tatime %s", ctime(&z_atime));
3179 (void) printf("\tmtime %s", ctime(&z_mtime));
3180 (void) printf("\tctime %s", ctime(&z_ctime));
3181 (void) printf("\tcrtime %s", ctime(&z_crtime));
3182 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
3183 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
3184 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
3185 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
3186 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
3187 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
3188 if (dmu_objset_projectquota_enabled(os) && (pflags & ZFS_PROJID)) {
3189 uint64_t projid;
3190
3191 if (sa_lookup(hdl, sa_attr_table[ZPL_PROJID], &projid,
3192 sizeof (uint64_t)) == 0)
3193 (void) printf("\tprojid %llu\n", (u_longlong_t)projid);
3194 }
3195 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
3196 sizeof (uint64_t)) == 0)
3197 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
3198 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
3199 sizeof (uint64_t)) == 0)
3200 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
3201 dump_znode_sa_xattr(hdl);
3202 sa_handle_destroy(hdl);
3203 }
3204
3205 /*ARGSUSED*/
3206 static void
3207 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
3208 {
3209 }
3210
3211 /*ARGSUSED*/
3212 static void
3213 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
3214 {
3215 }
3216
3217 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
3218 dump_none, /* unallocated */
3219 dump_zap, /* object directory */
3220 dump_uint64, /* object array */
3221 dump_none, /* packed nvlist */
3222 dump_packed_nvlist, /* packed nvlist size */
3223 dump_none, /* bpobj */
3224 dump_bpobj, /* bpobj header */
3225 dump_none, /* SPA space map header */
3226 dump_none, /* SPA space map */
3227 dump_none, /* ZIL intent log */
3228 dump_dnode, /* DMU dnode */
3229 dump_dmu_objset, /* DMU objset */
3230 dump_dsl_dir, /* DSL directory */
3231 dump_zap, /* DSL directory child map */
3232 dump_zap, /* DSL dataset snap map */
3233 dump_zap, /* DSL props */
3234 dump_dsl_dataset, /* DSL dataset */
3235 dump_znode, /* ZFS znode */
3236 dump_acl, /* ZFS V0 ACL */
3237 dump_uint8, /* ZFS plain file */
3238 dump_zpldir, /* ZFS directory */
3239 dump_zap, /* ZFS master node */
3240 dump_zap, /* ZFS delete queue */
3241 dump_uint8, /* zvol object */
3242 dump_zap, /* zvol prop */
3243 dump_uint8, /* other uint8[] */
3244 dump_uint64, /* other uint64[] */
3245 dump_zap, /* other ZAP */
3246 dump_zap, /* persistent error log */
3247 dump_uint8, /* SPA history */
3248 dump_history_offsets, /* SPA history offsets */
3249 dump_zap, /* Pool properties */
3250 dump_zap, /* DSL permissions */
3251 dump_acl, /* ZFS ACL */
3252 dump_uint8, /* ZFS SYSACL */
3253 dump_none, /* FUID nvlist */
3254 dump_packed_nvlist, /* FUID nvlist size */
3255 dump_zap, /* DSL dataset next clones */
3256 dump_zap, /* DSL scrub queue */
3257 dump_zap, /* ZFS user/group/project used */
3258 dump_zap, /* ZFS user/group/project quota */
3259 dump_zap, /* snapshot refcount tags */
3260 dump_ddt_zap, /* DDT ZAP object */
3261 dump_zap, /* DDT statistics */
3262 dump_znode, /* SA object */
3263 dump_zap, /* SA Master Node */
3264 dump_sa_attrs, /* SA attribute registration */
3265 dump_sa_layouts, /* SA attribute layouts */
3266 dump_zap, /* DSL scrub translations */
3267 dump_none, /* fake dedup BP */
3268 dump_zap, /* deadlist */
3269 dump_none, /* deadlist hdr */
3270 dump_zap, /* dsl clones */
3271 dump_bpobj_subobjs, /* bpobj subobjs */
3272 dump_unknown, /* Unknown type, must be last */
3273 };
3274
3275 static boolean_t
3276 match_object_type(dmu_object_type_t obj_type, uint64_t flags)
3277 {
3278 boolean_t match = B_TRUE;
3279
3280 switch (obj_type) {
3281 case DMU_OT_DIRECTORY_CONTENTS:
3282 if (!(flags & ZOR_FLAG_DIRECTORY))
3283 match = B_FALSE;
3284 break;
3285 case DMU_OT_PLAIN_FILE_CONTENTS:
3286 if (!(flags & ZOR_FLAG_PLAIN_FILE))
3287 match = B_FALSE;
3288 break;
3289 case DMU_OT_SPACE_MAP:
3290 if (!(flags & ZOR_FLAG_SPACE_MAP))
3291 match = B_FALSE;
3292 break;
3293 default:
3294 if (strcmp(zdb_ot_name(obj_type), "zap") == 0) {
3295 if (!(flags & ZOR_FLAG_ZAP))
3296 match = B_FALSE;
3297 break;
3298 }
3299
3300 /*
3301 * If all bits except some of the supported flags are
3302 * set, the user combined the all-types flag (A) with
3303 * a negated flag to exclude some types (e.g. A-f to
3304 * show all object types except plain files).
3305 */
3306 if ((flags | ZOR_SUPPORTED_FLAGS) != ZOR_FLAG_ALL_TYPES)
3307 match = B_FALSE;
3308
3309 break;
3310 }
3311
3312 return (match);
3313 }
3314
3315 static void
3316 dump_object(objset_t *os, uint64_t object, int verbosity,
3317 boolean_t *print_header, uint64_t *dnode_slots_used, uint64_t flags)
3318 {
3319 dmu_buf_t *db = NULL;
3320 dmu_object_info_t doi;
3321 dnode_t *dn;
3322 boolean_t dnode_held = B_FALSE;
3323 void *bonus = NULL;
3324 size_t bsize = 0;
3325 char iblk[32], dblk[32], lsize[32], asize[32], fill[32], dnsize[32];
3326 char bonus_size[32];
3327 char aux[50];
3328 int error;
3329
3330 /* make sure nicenum has enough space */
3331 CTASSERT(sizeof (iblk) >= NN_NUMBUF_SZ);
3332 CTASSERT(sizeof (dblk) >= NN_NUMBUF_SZ);
3333 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ);
3334 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ);
3335 CTASSERT(sizeof (bonus_size) >= NN_NUMBUF_SZ);
3336
3337 if (*print_header) {
3338 (void) printf("\n%10s %3s %5s %5s %5s %6s %5s %6s %s\n",
3339 "Object", "lvl", "iblk", "dblk", "dsize", "dnsize",
3340 "lsize", "%full", "type");
3341 *print_header = 0;
3342 }
3343
3344 if (object == 0) {
3345 dn = DMU_META_DNODE(os);
3346 dmu_object_info_from_dnode(dn, &doi);
3347 } else {
3348 /*
3349 * Encrypted datasets will have sensitive bonus buffers
3350 * encrypted. Therefore we cannot hold the bonus buffer and
3351 * must hold the dnode itself instead.
3352 */
3353 error = dmu_object_info(os, object, &doi);
3354 if (error)
3355 fatal("dmu_object_info() failed, errno %u", error);
3356
3357 if (os->os_encrypted &&
3358 DMU_OT_IS_ENCRYPTED(doi.doi_bonus_type)) {
3359 error = dnode_hold(os, object, FTAG, &dn);
3360 if (error)
3361 fatal("dnode_hold() failed, errno %u", error);
3362 dnode_held = B_TRUE;
3363 } else {
3364 error = dmu_bonus_hold(os, object, FTAG, &db);
3365 if (error)
3366 fatal("dmu_bonus_hold(%llu) failed, errno %u",
3367 object, error);
3368 bonus = db->db_data;
3369 bsize = db->db_size;
3370 dn = DB_DNODE((dmu_buf_impl_t *)db);
3371 }
3372 }
3373
3374 /*
3375 * Default to showing all object types if no flags were specified.
3376 */
3377 if (flags != 0 && flags != ZOR_FLAG_ALL_TYPES &&
3378 !match_object_type(doi.doi_type, flags))
3379 goto out;
3380
3381 if (dnode_slots_used)
3382 *dnode_slots_used = doi.doi_dnodesize / DNODE_MIN_SIZE;
3383
3384 zdb_nicenum(doi.doi_metadata_block_size, iblk, sizeof (iblk));
3385 zdb_nicenum(doi.doi_data_block_size, dblk, sizeof (dblk));
3386 zdb_nicenum(doi.doi_max_offset, lsize, sizeof (lsize));
3387 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize, sizeof (asize));
3388 zdb_nicenum(doi.doi_bonus_size, bonus_size, sizeof (bonus_size));
3389 zdb_nicenum(doi.doi_dnodesize, dnsize, sizeof (dnsize));
3390 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
3391 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
3392 doi.doi_max_offset);
3393
3394 aux[0] = '\0';
3395
3396 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
3397 (void) snprintf(aux + strlen(aux), sizeof (aux) - strlen(aux),
3398 " (K=%s)", ZDB_CHECKSUM_NAME(doi.doi_checksum));
3399 }
3400
3401 if (doi.doi_compress == ZIO_COMPRESS_INHERIT &&
3402 ZIO_COMPRESS_HASLEVEL(os->os_compress) && verbosity >= 6) {
3403 const char *compname = NULL;
3404 if (zfs_prop_index_to_string(ZFS_PROP_COMPRESSION,
3405 ZIO_COMPRESS_RAW(os->os_compress, os->os_complevel),
3406 &compname) == 0) {
3407 (void) snprintf(aux + strlen(aux),
3408 sizeof (aux) - strlen(aux), " (Z=inherit=%s)",
3409 compname);
3410 } else {
3411 (void) snprintf(aux + strlen(aux),
3412 sizeof (aux) - strlen(aux),
3413 " (Z=inherit=%s-unknown)",
3414 ZDB_COMPRESS_NAME(os->os_compress));
3415 }
3416 } else if (doi.doi_compress == ZIO_COMPRESS_INHERIT && verbosity >= 6) {
3417 (void) snprintf(aux + strlen(aux), sizeof (aux) - strlen(aux),
3418 " (Z=inherit=%s)", ZDB_COMPRESS_NAME(os->os_compress));
3419 } else if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
3420 (void) snprintf(aux + strlen(aux), sizeof (aux) - strlen(aux),
3421 " (Z=%s)", ZDB_COMPRESS_NAME(doi.doi_compress));
3422 }
3423
3424 (void) printf("%10lld %3u %5s %5s %5s %6s %5s %6s %s%s\n",
3425 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
3426 asize, dnsize, lsize, fill, zdb_ot_name(doi.doi_type), aux);
3427
3428 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
3429 (void) printf("%10s %3s %5s %5s %5s %5s %5s %6s %s\n",
3430 "", "", "", "", "", "", bonus_size, "bonus",
3431 zdb_ot_name(doi.doi_bonus_type));
3432 }
3433
3434 if (verbosity >= 4) {
3435 (void) printf("\tdnode flags: %s%s%s%s\n",
3436 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
3437 "USED_BYTES " : "",
3438 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
3439 "USERUSED_ACCOUNTED " : "",
3440 (dn->dn_phys->dn_flags & DNODE_FLAG_USEROBJUSED_ACCOUNTED) ?
3441 "USEROBJUSED_ACCOUNTED " : "",
3442 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
3443 "SPILL_BLKPTR" : "");
3444 (void) printf("\tdnode maxblkid: %llu\n",
3445 (longlong_t)dn->dn_phys->dn_maxblkid);
3446
3447 if (!dnode_held) {
3448 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os,
3449 object, bonus, bsize);
3450 } else {
3451 (void) printf("\t\t(bonus encrypted)\n");
3452 }
3453
3454 if (!os->os_encrypted || !DMU_OT_IS_ENCRYPTED(doi.doi_type)) {
3455 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object,
3456 NULL, 0);
3457 } else {
3458 (void) printf("\t\t(object encrypted)\n");
3459 }
3460
3461 *print_header = B_TRUE;
3462 }
3463
3464 if (verbosity >= 5)
3465 dump_indirect(dn);
3466
3467 if (verbosity >= 5) {
3468 /*
3469 * Report the list of segments that comprise the object.
3470 */
3471 uint64_t start = 0;
3472 uint64_t end;
3473 uint64_t blkfill = 1;
3474 int minlvl = 1;
3475
3476 if (dn->dn_type == DMU_OT_DNODE) {
3477 minlvl = 0;
3478 blkfill = DNODES_PER_BLOCK;
3479 }
3480
3481 for (;;) {
3482 char segsize[32];
3483 /* make sure nicenum has enough space */
3484 CTASSERT(sizeof (segsize) >= NN_NUMBUF_SZ);
3485 error = dnode_next_offset(dn,
3486 0, &start, minlvl, blkfill, 0);
3487 if (error)
3488 break;
3489 end = start;
3490 error = dnode_next_offset(dn,
3491 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
3492 zdb_nicenum(end - start, segsize, sizeof (segsize));
3493 (void) printf("\t\tsegment [%016llx, %016llx)"
3494 " size %5s\n", (u_longlong_t)start,
3495 (u_longlong_t)end, segsize);
3496 if (error)
3497 break;
3498 start = end;
3499 }
3500 }
3501
3502 out:
3503 if (db != NULL)
3504 dmu_buf_rele(db, FTAG);
3505 if (dnode_held)
3506 dnode_rele(dn, FTAG);
3507 }
3508
3509 static void
3510 count_dir_mos_objects(dsl_dir_t *dd)
3511 {
3512 mos_obj_refd(dd->dd_object);
3513 mos_obj_refd(dsl_dir_phys(dd)->dd_child_dir_zapobj);
3514 mos_obj_refd(dsl_dir_phys(dd)->dd_deleg_zapobj);
3515 mos_obj_refd(dsl_dir_phys(dd)->dd_props_zapobj);
3516 mos_obj_refd(dsl_dir_phys(dd)->dd_clones);
3517
3518 /*
3519 * The dd_crypto_obj can be referenced by multiple dsl_dir's.
3520 * Ignore the references after the first one.
3521 */
3522 mos_obj_refd_multiple(dd->dd_crypto_obj);
3523 }
3524
3525 static void
3526 count_ds_mos_objects(dsl_dataset_t *ds)
3527 {
3528 mos_obj_refd(ds->ds_object);
3529 mos_obj_refd(dsl_dataset_phys(ds)->ds_next_clones_obj);
3530 mos_obj_refd(dsl_dataset_phys(ds)->ds_props_obj);
3531 mos_obj_refd(dsl_dataset_phys(ds)->ds_userrefs_obj);
3532 mos_obj_refd(dsl_dataset_phys(ds)->ds_snapnames_zapobj);
3533 mos_obj_refd(ds->ds_bookmarks_obj);
3534
3535 if (!dsl_dataset_is_snapshot(ds)) {
3536 count_dir_mos_objects(ds->ds_dir);
3537 }
3538 }
3539
3540 static const char *objset_types[DMU_OST_NUMTYPES] = {
3541 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
3542
3543 /*
3544 * Parse a string denoting a range of object IDs of the form
3545 * <start>[:<end>[:flags]], and store the results in zor.
3546 * Return 0 on success. On error, return 1 and update the msg
3547 * pointer to point to a descriptive error message.
3548 */
3549 static int
3550 parse_object_range(char *range, zopt_object_range_t *zor, char **msg)
3551 {
3552 uint64_t flags = 0;
3553 char *p, *s, *dup, *flagstr;
3554 size_t len;
3555 int i;
3556 int rc = 0;
3557
3558 if (strchr(range, ':') == NULL) {
3559 zor->zor_obj_start = strtoull(range, &p, 0);
3560 if (*p != '\0') {
3561 *msg = "Invalid characters in object ID";
3562 rc = 1;
3563 }
3564 zor->zor_obj_end = zor->zor_obj_start;
3565 return (rc);
3566 }
3567
3568 if (strchr(range, ':') == range) {
3569 *msg = "Invalid leading colon";
3570 rc = 1;
3571 return (rc);
3572 }
3573
3574 len = strlen(range);
3575 if (range[len - 1] == ':') {
3576 *msg = "Invalid trailing colon";
3577 rc = 1;
3578 return (rc);
3579 }
3580
3581 dup = strdup(range);
3582 s = strtok(dup, ":");
3583 zor->zor_obj_start = strtoull(s, &p, 0);
3584
3585 if (*p != '\0') {
3586 *msg = "Invalid characters in start object ID";
3587 rc = 1;
3588 goto out;
3589 }
3590
3591 s = strtok(NULL, ":");
3592 zor->zor_obj_end = strtoull(s, &p, 0);
3593
3594 if (*p != '\0') {
3595 *msg = "Invalid characters in end object ID";
3596 rc = 1;
3597 goto out;
3598 }
3599
3600 if (zor->zor_obj_start > zor->zor_obj_end) {
3601 *msg = "Start object ID may not exceed end object ID";
3602 rc = 1;
3603 goto out;
3604 }
3605
3606 s = strtok(NULL, ":");
3607 if (s == NULL) {
3608 zor->zor_flags = ZOR_FLAG_ALL_TYPES;
3609 goto out;
3610 } else if (strtok(NULL, ":") != NULL) {
3611 *msg = "Invalid colon-delimited field after flags";
3612 rc = 1;
3613 goto out;
3614 }
3615
3616 flagstr = s;
3617 for (i = 0; flagstr[i]; i++) {
3618 int bit;
3619 boolean_t negation = (flagstr[i] == '-');
3620
3621 if (negation) {
3622 i++;
3623 if (flagstr[i] == '\0') {
3624 *msg = "Invalid trailing negation operator";
3625 rc = 1;
3626 goto out;
3627 }
3628 }
3629 bit = flagbits[(uchar_t)flagstr[i]];
3630 if (bit == 0) {
3631 *msg = "Invalid flag";
3632 rc = 1;
3633 goto out;
3634 }
3635 if (negation)
3636 flags &= ~bit;
3637 else
3638 flags |= bit;
3639 }
3640 zor->zor_flags = flags;
3641
3642 out:
3643 free(dup);
3644 return (rc);
3645 }
3646
3647 static void
3648 dump_objset(objset_t *os)
3649 {
3650 dmu_objset_stats_t dds = { 0 };
3651 uint64_t object, object_count;
3652 uint64_t refdbytes, usedobjs, scratch;
3653 char numbuf[32];
3654 char blkbuf[BP_SPRINTF_LEN + 20];
3655 char osname[ZFS_MAX_DATASET_NAME_LEN];
3656 const char *type = "UNKNOWN";
3657 int verbosity = dump_opt['d'];
3658 boolean_t print_header;
3659 unsigned i;
3660 int error;
3661 uint64_t total_slots_used = 0;
3662 uint64_t max_slot_used = 0;
3663 uint64_t dnode_slots;
3664 uint64_t obj_start;
3665 uint64_t obj_end;
3666 uint64_t flags;
3667
3668 /* make sure nicenum has enough space */
3669 CTASSERT(sizeof (numbuf) >= NN_NUMBUF_SZ);
3670
3671 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
3672 dmu_objset_fast_stat(os, &dds);
3673 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
3674
3675 print_header = B_TRUE;
3676
3677 if (dds.dds_type < DMU_OST_NUMTYPES)
3678 type = objset_types[dds.dds_type];
3679
3680 if (dds.dds_type == DMU_OST_META) {
3681 dds.dds_creation_txg = TXG_INITIAL;
3682 usedobjs = BP_GET_FILL(os->os_rootbp);
3683 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)->
3684 dd_used_bytes;
3685 } else {
3686 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
3687 }
3688
3689 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
3690
3691 zdb_nicenum(refdbytes, numbuf, sizeof (numbuf));
3692
3693 if (verbosity >= 4) {
3694 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
3695 (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
3696 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
3697 } else {
3698 blkbuf[0] = '\0';
3699 }
3700
3701 dmu_objset_name(os, osname);
3702
3703 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
3704 "%s, %llu objects%s%s\n",
3705 osname, type, (u_longlong_t)dmu_objset_id(os),
3706 (u_longlong_t)dds.dds_creation_txg,
3707 numbuf, (u_longlong_t)usedobjs, blkbuf,
3708 (dds.dds_inconsistent) ? " (inconsistent)" : "");
3709
3710 for (i = 0; i < zopt_object_args; i++) {
3711 obj_start = zopt_object_ranges[i].zor_obj_start;
3712 obj_end = zopt_object_ranges[i].zor_obj_end;
3713 flags = zopt_object_ranges[i].zor_flags;
3714
3715 object = obj_start;
3716 if (object == 0 || obj_start == obj_end)
3717 dump_object(os, object, verbosity, &print_header, NULL,
3718 flags);
3719 else
3720 object--;
3721
3722 while ((dmu_object_next(os, &object, B_FALSE, 0) == 0) &&
3723 object <= obj_end) {
3724 dump_object(os, object, verbosity, &print_header, NULL,
3725 flags);
3726 }
3727 }
3728
3729 if (zopt_object_args > 0) {
3730 (void) printf("\n");
3731 return;
3732 }
3733
3734 if (dump_opt['i'] != 0 || verbosity >= 2)
3735 dump_intent_log(dmu_objset_zil(os));
3736
3737 if (dmu_objset_ds(os) != NULL) {
3738 dsl_dataset_t *ds = dmu_objset_ds(os);
3739 dump_blkptr_list(&ds->ds_deadlist, "Deadlist");
3740 if (dsl_deadlist_is_open(&ds->ds_dir->dd_livelist) &&
3741 !dmu_objset_is_snapshot(os)) {
3742 dump_blkptr_list(&ds->ds_dir->dd_livelist, "Livelist");
3743 if (verify_dd_livelist(os) != 0)
3744 fatal("livelist is incorrect");
3745 }
3746
3747 if (dsl_dataset_remap_deadlist_exists(ds)) {
3748 (void) printf("ds_remap_deadlist:\n");
3749 dump_blkptr_list(&ds->ds_remap_deadlist, "Deadlist");
3750 }
3751 count_ds_mos_objects(ds);
3752 }
3753
3754 if (dmu_objset_ds(os) != NULL)
3755 dump_bookmarks(os, verbosity);
3756
3757 if (verbosity < 2)
3758 return;
3759
3760 if (BP_IS_HOLE(os->os_rootbp))
3761 return;
3762
3763 dump_object(os, 0, verbosity, &print_header, NULL, 0);
3764 object_count = 0;
3765 if (DMU_USERUSED_DNODE(os) != NULL &&
3766 DMU_USERUSED_DNODE(os)->dn_type != 0) {
3767 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header,
3768 NULL, 0);
3769 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header,
3770 NULL, 0);
3771 }
3772
3773 if (DMU_PROJECTUSED_DNODE(os) != NULL &&
3774 DMU_PROJECTUSED_DNODE(os)->dn_type != 0)
3775 dump_object(os, DMU_PROJECTUSED_OBJECT, verbosity,
3776 &print_header, NULL, 0);
3777
3778 object = 0;
3779 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
3780 dump_object(os, object, verbosity, &print_header, &dnode_slots,
3781 0);
3782 object_count++;
3783 total_slots_used += dnode_slots;
3784 max_slot_used = object + dnode_slots - 1;
3785 }
3786
3787 (void) printf("\n");
3788
3789 (void) printf(" Dnode slots:\n");
3790 (void) printf("\tTotal used: %10llu\n",
3791 (u_longlong_t)total_slots_used);
3792 (void) printf("\tMax used: %10llu\n",
3793 (u_longlong_t)max_slot_used);
3794 (void) printf("\tPercent empty: %10lf\n",
3795 (double)(max_slot_used - total_slots_used)*100 /
3796 (double)max_slot_used);
3797 (void) printf("\n");
3798
3799 if (error != ESRCH) {
3800 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
3801 abort();
3802 }
3803
3804 ASSERT3U(object_count, ==, usedobjs);
3805
3806 if (leaked_objects != 0) {
3807 (void) printf("%d potentially leaked objects detected\n",
3808 leaked_objects);
3809 leaked_objects = 0;
3810 }
3811 }
3812
3813 static void
3814 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
3815 {
3816 time_t timestamp = ub->ub_timestamp;
3817
3818 (void) printf("%s", header ? header : "");
3819 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
3820 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
3821 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
3822 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
3823 (void) printf("\ttimestamp = %llu UTC = %s",
3824 (u_longlong_t)ub->ub_timestamp, asctime(localtime(&timestamp)));
3825
3826 (void) printf("\tmmp_magic = %016llx\n",
3827 (u_longlong_t)ub->ub_mmp_magic);
3828 if (MMP_VALID(ub)) {
3829 (void) printf("\tmmp_delay = %0llu\n",
3830 (u_longlong_t)ub->ub_mmp_delay);
3831 if (MMP_SEQ_VALID(ub))
3832 (void) printf("\tmmp_seq = %u\n",
3833 (unsigned int) MMP_SEQ(ub));
3834 if (MMP_FAIL_INT_VALID(ub))
3835 (void) printf("\tmmp_fail = %u\n",
3836 (unsigned int) MMP_FAIL_INT(ub));
3837 if (MMP_INTERVAL_VALID(ub))
3838 (void) printf("\tmmp_write = %u\n",
3839 (unsigned int) MMP_INTERVAL(ub));
3840 /* After MMP_* to make summarize_uberblock_mmp cleaner */
3841 (void) printf("\tmmp_valid = %x\n",
3842 (unsigned int) ub->ub_mmp_config & 0xFF);
3843 }
3844
3845 if (dump_opt['u'] >= 4) {
3846 char blkbuf[BP_SPRINTF_LEN];
3847 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
3848 (void) printf("\trootbp = %s\n", blkbuf);
3849 }
3850 (void) printf("\tcheckpoint_txg = %llu\n",
3851 (u_longlong_t)ub->ub_checkpoint_txg);
3852 (void) printf("%s", footer ? footer : "");
3853 }
3854
3855 static void
3856 dump_config(spa_t *spa)
3857 {
3858 dmu_buf_t *db;
3859 size_t nvsize = 0;
3860 int error = 0;
3861
3862
3863 error = dmu_bonus_hold(spa->spa_meta_objset,
3864 spa->spa_config_object, FTAG, &db);
3865
3866 if (error == 0) {
3867 nvsize = *(uint64_t *)db->db_data;
3868 dmu_buf_rele(db, FTAG);
3869
3870 (void) printf("\nMOS Configuration:\n");
3871 dump_packed_nvlist(spa->spa_meta_objset,
3872 spa->spa_config_object, (void *)&nvsize, 1);
3873 } else {
3874 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
3875 (u_longlong_t)spa->spa_config_object, error);
3876 }
3877 }
3878
3879 static void
3880 dump_cachefile(const char *cachefile)
3881 {
3882 int fd;
3883 struct stat64 statbuf;
3884 char *buf;
3885 nvlist_t *config;
3886
3887 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
3888 (void) printf("cannot open '%s': %s\n", cachefile,
3889 strerror(errno));
3890 exit(1);
3891 }
3892
3893 if (fstat64(fd, &statbuf) != 0) {
3894 (void) printf("failed to stat '%s': %s\n", cachefile,
3895 strerror(errno));
3896 exit(1);
3897 }
3898
3899 if ((buf = malloc(statbuf.st_size)) == NULL) {
3900 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
3901 (u_longlong_t)statbuf.st_size);
3902 exit(1);
3903 }
3904
3905 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
3906 (void) fprintf(stderr, "failed to read %llu bytes\n",
3907 (u_longlong_t)statbuf.st_size);
3908 exit(1);
3909 }
3910
3911 (void) close(fd);
3912
3913 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
3914 (void) fprintf(stderr, "failed to unpack nvlist\n");
3915 exit(1);
3916 }
3917
3918 free(buf);
3919
3920 dump_nvlist(config, 0);
3921
3922 nvlist_free(config);
3923 }
3924
3925 /*
3926 * ZFS label nvlist stats
3927 */
3928 typedef struct zdb_nvl_stats {
3929 int zns_list_count;
3930 int zns_leaf_count;
3931 size_t zns_leaf_largest;
3932 size_t zns_leaf_total;
3933 nvlist_t *zns_string;
3934 nvlist_t *zns_uint64;
3935 nvlist_t *zns_boolean;
3936 } zdb_nvl_stats_t;
3937
3938 static void
3939 collect_nvlist_stats(nvlist_t *nvl, zdb_nvl_stats_t *stats)
3940 {
3941 nvlist_t *list, **array;
3942 nvpair_t *nvp = NULL;
3943 char *name;
3944 uint_t i, items;
3945
3946 stats->zns_list_count++;
3947
3948 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
3949 name = nvpair_name(nvp);
3950
3951 switch (nvpair_type(nvp)) {
3952 case DATA_TYPE_STRING:
3953 fnvlist_add_string(stats->zns_string, name,
3954 fnvpair_value_string(nvp));
3955 break;
3956 case DATA_TYPE_UINT64:
3957 fnvlist_add_uint64(stats->zns_uint64, name,
3958 fnvpair_value_uint64(nvp));
3959 break;
3960 case DATA_TYPE_BOOLEAN:
3961 fnvlist_add_boolean(stats->zns_boolean, name);
3962 break;
3963 case DATA_TYPE_NVLIST:
3964 if (nvpair_value_nvlist(nvp, &list) == 0)
3965 collect_nvlist_stats(list, stats);
3966 break;
3967 case DATA_TYPE_NVLIST_ARRAY:
3968 if (nvpair_value_nvlist_array(nvp, &array, &items) != 0)
3969 break;
3970
3971 for (i = 0; i < items; i++) {
3972 collect_nvlist_stats(array[i], stats);
3973
3974 /* collect stats on leaf vdev */
3975 if (strcmp(name, "children") == 0) {
3976 size_t size;
3977
3978 (void) nvlist_size(array[i], &size,
3979 NV_ENCODE_XDR);
3980 stats->zns_leaf_total += size;
3981 if (size > stats->zns_leaf_largest)
3982 stats->zns_leaf_largest = size;
3983 stats->zns_leaf_count++;
3984 }
3985 }
3986 break;
3987 default:
3988 (void) printf("skip type %d!\n", (int)nvpair_type(nvp));
3989 }
3990 }
3991 }
3992
3993 static void
3994 dump_nvlist_stats(nvlist_t *nvl, size_t cap)
3995 {
3996 zdb_nvl_stats_t stats = { 0 };
3997 size_t size, sum = 0, total;
3998 size_t noise;
3999
4000 /* requires nvlist with non-unique names for stat collection */
4001 VERIFY0(nvlist_alloc(&stats.zns_string, 0, 0));
4002 VERIFY0(nvlist_alloc(&stats.zns_uint64, 0, 0));
4003 VERIFY0(nvlist_alloc(&stats.zns_boolean, 0, 0));
4004 VERIFY0(nvlist_size(stats.zns_boolean, &noise, NV_ENCODE_XDR));
4005
4006 (void) printf("\n\nZFS Label NVList Config Stats:\n");
4007
4008 VERIFY0(nvlist_size(nvl, &total, NV_ENCODE_XDR));
4009 (void) printf(" %d bytes used, %d bytes free (using %4.1f%%)\n\n",
4010 (int)total, (int)(cap - total), 100.0 * total / cap);
4011
4012 collect_nvlist_stats(nvl, &stats);
4013
4014 VERIFY0(nvlist_size(stats.zns_uint64, &size, NV_ENCODE_XDR));
4015 size -= noise;
4016 sum += size;
4017 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n", "integers:",
4018 (int)fnvlist_num_pairs(stats.zns_uint64),
4019 (int)size, 100.0 * size / total);
4020
4021 VERIFY0(nvlist_size(stats.zns_string, &size, NV_ENCODE_XDR));
4022 size -= noise;
4023 sum += size;
4024 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n", "strings:",
4025 (int)fnvlist_num_pairs(stats.zns_string),
4026 (int)size, 100.0 * size / total);
4027
4028 VERIFY0(nvlist_size(stats.zns_boolean, &size, NV_ENCODE_XDR));
4029 size -= noise;
4030 sum += size;
4031 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n", "booleans:",
4032 (int)fnvlist_num_pairs(stats.zns_boolean),
4033 (int)size, 100.0 * size / total);
4034
4035 size = total - sum; /* treat remainder as nvlist overhead */
4036 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n\n", "nvlists:",
4037 stats.zns_list_count, (int)size, 100.0 * size / total);
4038
4039 if (stats.zns_leaf_count > 0) {
4040 size_t average = stats.zns_leaf_total / stats.zns_leaf_count;
4041
4042 (void) printf("%12s %4d %6d bytes average\n", "leaf vdevs:",
4043 stats.zns_leaf_count, (int)average);
4044 (void) printf("%24d bytes largest\n",
4045 (int)stats.zns_leaf_largest);
4046
4047 if (dump_opt['l'] >= 3 && average > 0)
4048 (void) printf(" space for %d additional leaf vdevs\n",
4049 (int)((cap - total) / average));
4050 }
4051 (void) printf("\n");
4052
4053 nvlist_free(stats.zns_string);
4054 nvlist_free(stats.zns_uint64);
4055 nvlist_free(stats.zns_boolean);
4056 }
4057
4058 typedef struct cksum_record {
4059 zio_cksum_t cksum;
4060 boolean_t labels[VDEV_LABELS];
4061 avl_node_t link;
4062 } cksum_record_t;
4063
4064 static int
4065 cksum_record_compare(const void *x1, const void *x2)
4066 {
4067 const cksum_record_t *l = (cksum_record_t *)x1;
4068 const cksum_record_t *r = (cksum_record_t *)x2;
4069 int arraysize = ARRAY_SIZE(l->cksum.zc_word);
4070 int difference;
4071
4072 for (int i = 0; i < arraysize; i++) {
4073 difference = TREE_CMP(l->cksum.zc_word[i], r->cksum.zc_word[i]);
4074 if (difference)
4075 break;
4076 }
4077
4078 return (difference);
4079 }
4080
4081 static cksum_record_t *
4082 cksum_record_alloc(zio_cksum_t *cksum, int l)
4083 {
4084 cksum_record_t *rec;
4085
4086 rec = umem_zalloc(sizeof (*rec), UMEM_NOFAIL);
4087 rec->cksum = *cksum;
4088 rec->labels[l] = B_TRUE;
4089
4090 return (rec);
4091 }
4092
4093 static cksum_record_t *
4094 cksum_record_lookup(avl_tree_t *tree, zio_cksum_t *cksum)
4095 {
4096 cksum_record_t lookup = { .cksum = *cksum };
4097 avl_index_t where;
4098
4099 return (avl_find(tree, &lookup, &where));
4100 }
4101
4102 static cksum_record_t *
4103 cksum_record_insert(avl_tree_t *tree, zio_cksum_t *cksum, int l)
4104 {
4105 cksum_record_t *rec;
4106
4107 rec = cksum_record_lookup(tree, cksum);
4108 if (rec) {
4109 rec->labels[l] = B_TRUE;
4110 } else {
4111 rec = cksum_record_alloc(cksum, l);
4112 avl_add(tree, rec);
4113 }
4114
4115 return (rec);
4116 }
4117
4118 static int
4119 first_label(cksum_record_t *rec)
4120 {
4121 for (int i = 0; i < VDEV_LABELS; i++)
4122 if (rec->labels[i])
4123 return (i);
4124
4125 return (-1);
4126 }
4127
4128 static void
4129 print_label_numbers(char *prefix, cksum_record_t *rec)
4130 {
4131 printf("%s", prefix);
4132 for (int i = 0; i < VDEV_LABELS; i++)
4133 if (rec->labels[i] == B_TRUE)
4134 printf("%d ", i);
4135 printf("\n");
4136 }
4137
4138 #define MAX_UBERBLOCK_COUNT (VDEV_UBERBLOCK_RING >> UBERBLOCK_SHIFT)
4139
4140 typedef struct zdb_label {
4141 vdev_label_t label;
4142 nvlist_t *config_nv;
4143 cksum_record_t *config;
4144 cksum_record_t *uberblocks[MAX_UBERBLOCK_COUNT];
4145 boolean_t header_printed;
4146 boolean_t read_failed;
4147 } zdb_label_t;
4148
4149 static void
4150 print_label_header(zdb_label_t *label, int l)
4151 {
4152
4153 if (dump_opt['q'])
4154 return;
4155
4156 if (label->header_printed == B_TRUE)
4157 return;
4158
4159 (void) printf("------------------------------------\n");
4160 (void) printf("LABEL %d\n", l);
4161 (void) printf("------------------------------------\n");
4162
4163 label->header_printed = B_TRUE;
4164 }
4165
4166 static void
4167 print_l2arc_header(void)
4168 {
4169 (void) printf("------------------------------------\n");
4170 (void) printf("L2ARC device header\n");
4171 (void) printf("------------------------------------\n");
4172 }
4173
4174 static void
4175 print_l2arc_log_blocks(void)
4176 {
4177 (void) printf("------------------------------------\n");
4178 (void) printf("L2ARC device log blocks\n");
4179 (void) printf("------------------------------------\n");
4180 }
4181
4182 static void
4183 dump_l2arc_log_entries(uint64_t log_entries,
4184 l2arc_log_ent_phys_t *le, uint64_t i)
4185 {
4186 for (int j = 0; j < log_entries; j++) {
4187 dva_t dva = le[j].le_dva;
4188 (void) printf("lb[%4llu]\tle[%4d]\tDVA asize: %llu, "
4189 "vdev: %llu, offset: %llu\n",
4190 (u_longlong_t)i, j + 1,
4191 (u_longlong_t)DVA_GET_ASIZE(&dva),
4192 (u_longlong_t)DVA_GET_VDEV(&dva),
4193 (u_longlong_t)DVA_GET_OFFSET(&dva));
4194 (void) printf("|\t\t\t\tbirth: %llu\n",
4195 (u_longlong_t)le[j].le_birth);
4196 (void) printf("|\t\t\t\tlsize: %llu\n",
4197 (u_longlong_t)L2BLK_GET_LSIZE((&le[j])->le_prop));
4198 (void) printf("|\t\t\t\tpsize: %llu\n",
4199 (u_longlong_t)L2BLK_GET_PSIZE((&le[j])->le_prop));
4200 (void) printf("|\t\t\t\tcompr: %llu\n",
4201 (u_longlong_t)L2BLK_GET_COMPRESS((&le[j])->le_prop));
4202 (void) printf("|\t\t\t\tcomplevel: %llu\n",
4203 (u_longlong_t)(&le[j])->le_complevel);
4204 (void) printf("|\t\t\t\ttype: %llu\n",
4205 (u_longlong_t)L2BLK_GET_TYPE((&le[j])->le_prop));
4206 (void) printf("|\t\t\t\tprotected: %llu\n",
4207 (u_longlong_t)L2BLK_GET_PROTECTED((&le[j])->le_prop));
4208 (void) printf("|\t\t\t\tprefetch: %llu\n",
4209 (u_longlong_t)L2BLK_GET_PREFETCH((&le[j])->le_prop));
4210 (void) printf("|\t\t\t\taddress: %llu\n",
4211 (u_longlong_t)le[j].le_daddr);
4212 (void) printf("|\t\t\t\tARC state: %llu\n",
4213 (u_longlong_t)L2BLK_GET_STATE((&le[j])->le_prop));
4214 (void) printf("|\n");
4215 }
4216 (void) printf("\n");
4217 }
4218
4219 static void
4220 dump_l2arc_log_blkptr(l2arc_log_blkptr_t lbps)
4221 {
4222 (void) printf("|\t\tdaddr: %llu\n", (u_longlong_t)lbps.lbp_daddr);
4223 (void) printf("|\t\tpayload_asize: %llu\n",
4224 (u_longlong_t)lbps.lbp_payload_asize);
4225 (void) printf("|\t\tpayload_start: %llu\n",
4226 (u_longlong_t)lbps.lbp_payload_start);
4227 (void) printf("|\t\tlsize: %llu\n",
4228 (u_longlong_t)L2BLK_GET_LSIZE((&lbps)->lbp_prop));
4229 (void) printf("|\t\tasize: %llu\n",
4230 (u_longlong_t)L2BLK_GET_PSIZE((&lbps)->lbp_prop));
4231 (void) printf("|\t\tcompralgo: %llu\n",
4232 (u_longlong_t)L2BLK_GET_COMPRESS((&lbps)->lbp_prop));
4233 (void) printf("|\t\tcksumalgo: %llu\n",
4234 (u_longlong_t)L2BLK_GET_CHECKSUM((&lbps)->lbp_prop));
4235 (void) printf("|\n\n");
4236 }
4237
4238 static void
4239 dump_l2arc_log_blocks(int fd, l2arc_dev_hdr_phys_t l2dhdr,
4240 l2arc_dev_hdr_phys_t *rebuild)
4241 {
4242 l2arc_log_blk_phys_t this_lb;
4243 uint64_t asize;
4244 l2arc_log_blkptr_t lbps[2];
4245 abd_t *abd;
4246 zio_cksum_t cksum;
4247 int failed = 0;
4248 l2arc_dev_t dev;
4249
4250 if (!dump_opt['q'])
4251 print_l2arc_log_blocks();
4252 bcopy((&l2dhdr)->dh_start_lbps, lbps, sizeof (lbps));
4253
4254 dev.l2ad_evict = l2dhdr.dh_evict;
4255 dev.l2ad_start = l2dhdr.dh_start;
4256 dev.l2ad_end = l2dhdr.dh_end;
4257
4258 if (l2dhdr.dh_start_lbps[0].lbp_daddr == 0) {
4259 /* no log blocks to read */
4260 if (!dump_opt['q']) {
4261 (void) printf("No log blocks to read\n");
4262 (void) printf("\n");
4263 }
4264 return;
4265 } else {
4266 dev.l2ad_hand = lbps[0].lbp_daddr +
4267 L2BLK_GET_PSIZE((&lbps[0])->lbp_prop);
4268 }
4269
4270 dev.l2ad_first = !!(l2dhdr.dh_flags & L2ARC_DEV_HDR_EVICT_FIRST);
4271
4272 for (;;) {
4273 if (!l2arc_log_blkptr_valid(&dev, &lbps[0]))
4274 break;
4275
4276 /* L2BLK_GET_PSIZE returns aligned size for log blocks */
4277 asize = L2BLK_GET_PSIZE((&lbps[0])->lbp_prop);
4278 if (pread64(fd, &this_lb, asize, lbps[0].lbp_daddr) != asize) {
4279 if (!dump_opt['q']) {
4280 (void) printf("Error while reading next log "
4281 "block\n\n");
4282 }
4283 break;
4284 }
4285
4286 fletcher_4_native_varsize(&this_lb, asize, &cksum);
4287 if (!ZIO_CHECKSUM_EQUAL(cksum, lbps[0].lbp_cksum)) {
4288 failed++;
4289 if (!dump_opt['q']) {
4290 (void) printf("Invalid cksum\n");
4291 dump_l2arc_log_blkptr(lbps[0]);
4292 }
4293 break;
4294 }
4295
4296 switch (L2BLK_GET_COMPRESS((&lbps[0])->lbp_prop)) {
4297 case ZIO_COMPRESS_OFF:
4298 break;
4299 default:
4300 abd = abd_alloc_for_io(asize, B_TRUE);
4301 abd_copy_from_buf_off(abd, &this_lb, 0, asize);
4302 zio_decompress_data(L2BLK_GET_COMPRESS(
4303 (&lbps[0])->lbp_prop), abd, &this_lb,
4304 asize, sizeof (this_lb), NULL);
4305 abd_free(abd);
4306 break;
4307 }
4308
4309 if (this_lb.lb_magic == BSWAP_64(L2ARC_LOG_BLK_MAGIC))
4310 byteswap_uint64_array(&this_lb, sizeof (this_lb));
4311 if (this_lb.lb_magic != L2ARC_LOG_BLK_MAGIC) {
4312 if (!dump_opt['q'])
4313 (void) printf("Invalid log block magic\n\n");
4314 break;
4315 }
4316
4317 rebuild->dh_lb_count++;
4318 rebuild->dh_lb_asize += asize;
4319 if (dump_opt['l'] > 1 && !dump_opt['q']) {
4320 (void) printf("lb[%4llu]\tmagic: %llu\n",
4321 (u_longlong_t)rebuild->dh_lb_count,
4322 (u_longlong_t)this_lb.lb_magic);
4323 dump_l2arc_log_blkptr(lbps[0]);
4324 }
4325
4326 if (dump_opt['l'] > 2 && !dump_opt['q'])
4327 dump_l2arc_log_entries(l2dhdr.dh_log_entries,
4328 this_lb.lb_entries,
4329 rebuild->dh_lb_count);
4330
4331 if (l2arc_range_check_overlap(lbps[1].lbp_payload_start,
4332 lbps[0].lbp_payload_start, dev.l2ad_evict) &&
4333 !dev.l2ad_first)
4334 break;
4335
4336 lbps[0] = lbps[1];
4337 lbps[1] = this_lb.lb_prev_lbp;
4338 }
4339
4340 if (!dump_opt['q']) {
4341 (void) printf("log_blk_count:\t %llu with valid cksum\n",
4342 (u_longlong_t)rebuild->dh_lb_count);
4343 (void) printf("\t\t %d with invalid cksum\n", failed);
4344 (void) printf("log_blk_asize:\t %llu\n\n",
4345 (u_longlong_t)rebuild->dh_lb_asize);
4346 }
4347 }
4348
4349 static int
4350 dump_l2arc_header(int fd)
4351 {
4352 l2arc_dev_hdr_phys_t l2dhdr, rebuild;
4353 int error = B_FALSE;
4354
4355 bzero(&l2dhdr, sizeof (l2dhdr));
4356 bzero(&rebuild, sizeof (rebuild));
4357
4358 if (pread64(fd, &l2dhdr, sizeof (l2dhdr),
4359 VDEV_LABEL_START_SIZE) != sizeof (l2dhdr)) {
4360 error = B_TRUE;
4361 } else {
4362 if (l2dhdr.dh_magic == BSWAP_64(L2ARC_DEV_HDR_MAGIC))
4363 byteswap_uint64_array(&l2dhdr, sizeof (l2dhdr));
4364
4365 if (l2dhdr.dh_magic != L2ARC_DEV_HDR_MAGIC)
4366 error = B_TRUE;
4367 }
4368
4369 if (error) {
4370 (void) printf("L2ARC device header not found\n\n");
4371 /* Do not return an error here for backward compatibility */
4372 return (0);
4373 } else if (!dump_opt['q']) {
4374 print_l2arc_header();
4375
4376 (void) printf(" magic: %llu\n",
4377 (u_longlong_t)l2dhdr.dh_magic);
4378 (void) printf(" version: %llu\n",
4379 (u_longlong_t)l2dhdr.dh_version);
4380 (void) printf(" pool_guid: %llu\n",
4381 (u_longlong_t)l2dhdr.dh_spa_guid);
4382 (void) printf(" flags: %llu\n",
4383 (u_longlong_t)l2dhdr.dh_flags);
4384 (void) printf(" start_lbps[0]: %llu\n",
4385 (u_longlong_t)
4386 l2dhdr.dh_start_lbps[0].lbp_daddr);
4387 (void) printf(" start_lbps[1]: %llu\n",
4388 (u_longlong_t)
4389 l2dhdr.dh_start_lbps[1].lbp_daddr);
4390 (void) printf(" log_blk_ent: %llu\n",
4391 (u_longlong_t)l2dhdr.dh_log_entries);
4392 (void) printf(" start: %llu\n",
4393 (u_longlong_t)l2dhdr.dh_start);
4394 (void) printf(" end: %llu\n",
4395 (u_longlong_t)l2dhdr.dh_end);
4396 (void) printf(" evict: %llu\n",
4397 (u_longlong_t)l2dhdr.dh_evict);
4398 (void) printf(" lb_asize_refcount: %llu\n",
4399 (u_longlong_t)l2dhdr.dh_lb_asize);
4400 (void) printf(" lb_count_refcount: %llu\n",
4401 (u_longlong_t)l2dhdr.dh_lb_count);
4402 (void) printf(" trim_action_time: %llu\n",
4403 (u_longlong_t)l2dhdr.dh_trim_action_time);
4404 (void) printf(" trim_state: %llu\n\n",
4405 (u_longlong_t)l2dhdr.dh_trim_state);
4406 }
4407
4408 dump_l2arc_log_blocks(fd, l2dhdr, &rebuild);
4409 /*
4410 * The total aligned size of log blocks and the number of log blocks
4411 * reported in the header of the device may be less than what zdb
4412 * reports by dump_l2arc_log_blocks() which emulates l2arc_rebuild().
4413 * This happens because dump_l2arc_log_blocks() lacks the memory
4414 * pressure valve that l2arc_rebuild() has. Thus, if we are on a system
4415 * with low memory, l2arc_rebuild will exit prematurely and dh_lb_asize
4416 * and dh_lb_count will be lower to begin with than what exists on the
4417 * device. This is normal and zdb should not exit with an error. The
4418 * opposite case should never happen though, the values reported in the
4419 * header should never be higher than what dump_l2arc_log_blocks() and
4420 * l2arc_rebuild() report. If this happens there is a leak in the
4421 * accounting of log blocks.
4422 */
4423 if (l2dhdr.dh_lb_asize > rebuild.dh_lb_asize ||
4424 l2dhdr.dh_lb_count > rebuild.dh_lb_count)
4425 return (1);
4426
4427 return (0);
4428 }
4429
4430 static void
4431 dump_config_from_label(zdb_label_t *label, size_t buflen, int l)
4432 {
4433 if (dump_opt['q'])
4434 return;
4435
4436 if ((dump_opt['l'] < 3) && (first_label(label->config) != l))
4437 return;
4438
4439 print_label_header(label, l);
4440 dump_nvlist(label->config_nv, 4);
4441 print_label_numbers(" labels = ", label->config);
4442
4443 if (dump_opt['l'] >= 2)
4444 dump_nvlist_stats(label->config_nv, buflen);
4445 }
4446
4447 #define ZDB_MAX_UB_HEADER_SIZE 32
4448
4449 static void
4450 dump_label_uberblocks(zdb_label_t *label, uint64_t ashift, int label_num)
4451 {
4452
4453 vdev_t vd;
4454 char header[ZDB_MAX_UB_HEADER_SIZE];
4455
4456 vd.vdev_ashift = ashift;
4457 vd.vdev_top = &vd;
4458
4459 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(&vd); i++) {
4460 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(&vd, i);
4461 uberblock_t *ub = (void *)((char *)&label->label + uoff);
4462 cksum_record_t *rec = label->uberblocks[i];
4463
4464 if (rec == NULL) {
4465 if (dump_opt['u'] >= 2) {
4466 print_label_header(label, label_num);
4467 (void) printf(" Uberblock[%d] invalid\n", i);
4468 }
4469 continue;
4470 }
4471
4472 if ((dump_opt['u'] < 3) && (first_label(rec) != label_num))
4473 continue;
4474
4475 if ((dump_opt['u'] < 4) &&
4476 (ub->ub_mmp_magic == MMP_MAGIC) && ub->ub_mmp_delay &&
4477 (i >= VDEV_UBERBLOCK_COUNT(&vd) - MMP_BLOCKS_PER_LABEL))
4478 continue;
4479
4480 print_label_header(label, label_num);
4481 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
4482 " Uberblock[%d]\n", i);
4483 dump_uberblock(ub, header, "");
4484 print_label_numbers(" labels = ", rec);
4485 }
4486 }
4487
4488 static char curpath[PATH_MAX];
4489
4490 /*
4491 * Iterate through the path components, recursively passing
4492 * current one's obj and remaining path until we find the obj
4493 * for the last one.
4494 */
4495 static int
4496 dump_path_impl(objset_t *os, uint64_t obj, char *name, uint64_t *retobj)
4497 {
4498 int err;
4499 boolean_t header = B_TRUE;
4500 uint64_t child_obj;
4501 char *s;
4502 dmu_buf_t *db;
4503 dmu_object_info_t doi;
4504
4505 if ((s = strchr(name, '/')) != NULL)
4506 *s = '\0';
4507 err = zap_lookup(os, obj, name, 8, 1, &child_obj);
4508
4509 (void) strlcat(curpath, name, sizeof (curpath));
4510
4511 if (err != 0) {
4512 (void) fprintf(stderr, "failed to lookup %s: %s\n",
4513 curpath, strerror(err));
4514 return (err);
4515 }
4516
4517 child_obj = ZFS_DIRENT_OBJ(child_obj);
4518 err = sa_buf_hold(os, child_obj, FTAG, &db);
4519 if (err != 0) {
4520 (void) fprintf(stderr,
4521 "failed to get SA dbuf for obj %llu: %s\n",
4522 (u_longlong_t)child_obj, strerror(err));
4523 return (EINVAL);
4524 }
4525 dmu_object_info_from_db(db, &doi);
4526 sa_buf_rele(db, FTAG);
4527
4528 if (doi.doi_bonus_type != DMU_OT_SA &&
4529 doi.doi_bonus_type != DMU_OT_ZNODE) {
4530 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n",
4531 doi.doi_bonus_type, (u_longlong_t)child_obj);
4532 return (EINVAL);
4533 }
4534
4535 if (dump_opt['v'] > 6) {
4536 (void) printf("obj=%llu %s type=%d bonustype=%d\n",
4537 (u_longlong_t)child_obj, curpath, doi.doi_type,
4538 doi.doi_bonus_type);
4539 }
4540
4541 (void) strlcat(curpath, "/", sizeof (curpath));
4542
4543 switch (doi.doi_type) {
4544 case DMU_OT_DIRECTORY_CONTENTS:
4545 if (s != NULL && *(s + 1) != '\0')
4546 return (dump_path_impl(os, child_obj, s + 1, retobj));
4547 /*FALLTHROUGH*/
4548 case DMU_OT_PLAIN_FILE_CONTENTS:
4549 if (retobj != NULL) {
4550 *retobj = child_obj;
4551 } else {
4552 dump_object(os, child_obj, dump_opt['v'], &header,
4553 NULL, 0);
4554 }
4555 return (0);
4556 default:
4557 (void) fprintf(stderr, "object %llu has non-file/directory "
4558 "type %d\n", (u_longlong_t)obj, doi.doi_type);
4559 break;
4560 }
4561
4562 return (EINVAL);
4563 }
4564
4565 /*
4566 * Dump the blocks for the object specified by path inside the dataset.
4567 */
4568 static int
4569 dump_path(char *ds, char *path, uint64_t *retobj)
4570 {
4571 int err;
4572 objset_t *os;
4573 uint64_t root_obj;
4574
4575 err = open_objset(ds, FTAG, &os);
4576 if (err != 0)
4577 return (err);
4578
4579 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj);
4580 if (err != 0) {
4581 (void) fprintf(stderr, "can't lookup root znode: %s\n",
4582 strerror(err));
4583 close_objset(os, FTAG);
4584 return (EINVAL);
4585 }
4586
4587 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds);
4588
4589 err = dump_path_impl(os, root_obj, path, retobj);
4590
4591 close_objset(os, FTAG);
4592 return (err);
4593 }
4594
4595 static int
4596 zdb_copy_object(objset_t *os, uint64_t srcobj, char *destfile)
4597 {
4598 int err = 0;
4599 uint64_t size, readsize, oursize, offset;
4600 ssize_t writesize;
4601 sa_handle_t *hdl;
4602
4603 (void) printf("Copying object %" PRIu64 " to file %s\n", srcobj,
4604 destfile);
4605
4606 VERIFY3P(os, ==, sa_os);
4607 if ((err = sa_handle_get(os, srcobj, NULL, SA_HDL_PRIVATE, &hdl))) {
4608 (void) printf("Failed to get handle for SA znode\n");
4609 return (err);
4610 }
4611 if ((err = sa_lookup(hdl, sa_attr_table[ZPL_SIZE], &size, 8))) {
4612 (void) sa_handle_destroy(hdl);
4613 return (err);
4614 }
4615 (void) sa_handle_destroy(hdl);
4616
4617 (void) printf("Object %" PRIu64 " is %" PRIu64 " bytes\n", srcobj,
4618 size);
4619 if (size == 0) {
4620 return (EINVAL);
4621 }
4622
4623 int fd = open(destfile, O_WRONLY | O_CREAT | O_TRUNC, 0644);
4624 /*
4625 * We cap the size at 1 mebibyte here to prevent
4626 * allocation failures and nigh-infinite printing if the
4627 * object is extremely large.
4628 */
4629 oursize = MIN(size, 1 << 20);
4630 offset = 0;
4631 char *buf = kmem_alloc(oursize, KM_NOSLEEP);
4632 if (buf == NULL) {
4633 return (ENOMEM);
4634 }
4635
4636 while (offset < size) {
4637 readsize = MIN(size - offset, 1 << 20);
4638 err = dmu_read(os, srcobj, offset, readsize, buf, 0);
4639 if (err != 0) {
4640 (void) printf("got error %u from dmu_read\n", err);
4641 kmem_free(buf, oursize);
4642 return (err);
4643 }
4644 if (dump_opt['v'] > 3) {
4645 (void) printf("Read offset=%" PRIu64 " size=%" PRIu64
4646 " error=%d\n", offset, readsize, err);
4647 }
4648
4649 writesize = write(fd, buf, readsize);
4650 if (writesize < 0) {
4651 err = errno;
4652 break;
4653 } else if (writesize != readsize) {
4654 /* Incomplete write */
4655 (void) fprintf(stderr, "Short write, only wrote %llu of"
4656 " %" PRIu64 " bytes, exiting...\n",
4657 (u_longlong_t)writesize, readsize);
4658 break;
4659 }
4660
4661 offset += readsize;
4662 }
4663
4664 (void) close(fd);
4665
4666 if (buf != NULL)
4667 kmem_free(buf, oursize);
4668
4669 return (err);
4670 }
4671
4672 static int
4673 dump_label(const char *dev)
4674 {
4675 char path[MAXPATHLEN];
4676 zdb_label_t labels[VDEV_LABELS];
4677 uint64_t psize, ashift, l2cache;
4678 struct stat64 statbuf;
4679 boolean_t config_found = B_FALSE;
4680 boolean_t error = B_FALSE;
4681 boolean_t read_l2arc_header = B_FALSE;
4682 avl_tree_t config_tree;
4683 avl_tree_t uberblock_tree;
4684 void *node, *cookie;
4685 int fd;
4686
4687 bzero(labels, sizeof (labels));
4688
4689 /*
4690 * Check if we were given absolute path and use it as is.
4691 * Otherwise if the provided vdev name doesn't point to a file,
4692 * try prepending expected disk paths and partition numbers.
4693 */
4694 (void) strlcpy(path, dev, sizeof (path));
4695 if (dev[0] != '/' && stat64(path, &statbuf) != 0) {
4696 int error;
4697
4698 error = zfs_resolve_shortname(dev, path, MAXPATHLEN);
4699 if (error == 0 && zfs_dev_is_whole_disk(path)) {
4700 if (zfs_append_partition(path, MAXPATHLEN) == -1)
4701 error = ENOENT;
4702 }
4703
4704 if (error || (stat64(path, &statbuf) != 0)) {
4705 (void) printf("failed to find device %s, try "
4706 "specifying absolute path instead\n", dev);
4707 return (1);
4708 }
4709 }
4710
4711 if ((fd = open64(path, O_RDONLY)) < 0) {
4712 (void) printf("cannot open '%s': %s\n", path, strerror(errno));
4713 exit(1);
4714 }
4715
4716 if (fstat64_blk(fd, &statbuf) != 0) {
4717 (void) printf("failed to stat '%s': %s\n", path,
4718 strerror(errno));
4719 (void) close(fd);
4720 exit(1);
4721 }
4722
4723 if (S_ISBLK(statbuf.st_mode) && zfs_dev_flush(fd) != 0)
4724 (void) printf("failed to invalidate cache '%s' : %s\n", path,
4725 strerror(errno));
4726
4727 avl_create(&config_tree, cksum_record_compare,
4728 sizeof (cksum_record_t), offsetof(cksum_record_t, link));
4729 avl_create(&uberblock_tree, cksum_record_compare,
4730 sizeof (cksum_record_t), offsetof(cksum_record_t, link));
4731
4732 psize = statbuf.st_size;
4733 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
4734 ashift = SPA_MINBLOCKSHIFT;
4735
4736 /*
4737 * 1. Read the label from disk
4738 * 2. Unpack the configuration and insert in config tree.
4739 * 3. Traverse all uberblocks and insert in uberblock tree.
4740 */
4741 for (int l = 0; l < VDEV_LABELS; l++) {
4742 zdb_label_t *label = &labels[l];
4743 char *buf = label->label.vl_vdev_phys.vp_nvlist;
4744 size_t buflen = sizeof (label->label.vl_vdev_phys.vp_nvlist);
4745 nvlist_t *config;
4746 cksum_record_t *rec;
4747 zio_cksum_t cksum;
4748 vdev_t vd;
4749
4750 if (pread64(fd, &label->label, sizeof (label->label),
4751 vdev_label_offset(psize, l, 0)) != sizeof (label->label)) {
4752 if (!dump_opt['q'])
4753 (void) printf("failed to read label %d\n", l);
4754 label->read_failed = B_TRUE;
4755 error = B_TRUE;
4756 continue;
4757 }
4758
4759 label->read_failed = B_FALSE;
4760
4761 if (nvlist_unpack(buf, buflen, &config, 0) == 0) {
4762 nvlist_t *vdev_tree = NULL;
4763 size_t size;
4764
4765 if ((nvlist_lookup_nvlist(config,
4766 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
4767 (nvlist_lookup_uint64(vdev_tree,
4768 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
4769 ashift = SPA_MINBLOCKSHIFT;
4770
4771 if (nvlist_size(config, &size, NV_ENCODE_XDR) != 0)
4772 size = buflen;
4773
4774 /* If the device is a cache device clear the header. */
4775 if (!read_l2arc_header) {
4776 if (nvlist_lookup_uint64(config,
4777 ZPOOL_CONFIG_POOL_STATE, &l2cache) == 0 &&
4778 l2cache == POOL_STATE_L2CACHE) {
4779 read_l2arc_header = B_TRUE;
4780 }
4781 }
4782
4783 fletcher_4_native_varsize(buf, size, &cksum);
4784 rec = cksum_record_insert(&config_tree, &cksum, l);
4785
4786 label->config = rec;
4787 label->config_nv = config;
4788 config_found = B_TRUE;
4789 } else {
4790 error = B_TRUE;
4791 }
4792
4793 vd.vdev_ashift = ashift;
4794 vd.vdev_top = &vd;
4795
4796 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(&vd); i++) {
4797 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(&vd, i);
4798 uberblock_t *ub = (void *)((char *)label + uoff);
4799
4800 if (uberblock_verify(ub))
4801 continue;
4802
4803 fletcher_4_native_varsize(ub, sizeof (*ub), &cksum);
4804 rec = cksum_record_insert(&uberblock_tree, &cksum, l);
4805
4806 label->uberblocks[i] = rec;
4807 }
4808 }
4809
4810 /*
4811 * Dump the label and uberblocks.
4812 */
4813 for (int l = 0; l < VDEV_LABELS; l++) {
4814 zdb_label_t *label = &labels[l];
4815 size_t buflen = sizeof (label->label.vl_vdev_phys.vp_nvlist);
4816
4817 if (label->read_failed == B_TRUE)
4818 continue;
4819
4820 if (label->config_nv) {
4821 dump_config_from_label(label, buflen, l);
4822 } else {
4823 if (!dump_opt['q'])
4824 (void) printf("failed to unpack label %d\n", l);
4825 }
4826
4827 if (dump_opt['u'])
4828 dump_label_uberblocks(label, ashift, l);
4829
4830 nvlist_free(label->config_nv);
4831 }
4832
4833 /*
4834 * Dump the L2ARC header, if existent.
4835 */
4836 if (read_l2arc_header)
4837 error |= dump_l2arc_header(fd);
4838
4839 cookie = NULL;
4840 while ((node = avl_destroy_nodes(&config_tree, &cookie)) != NULL)
4841 umem_free(node, sizeof (cksum_record_t));
4842
4843 cookie = NULL;
4844 while ((node = avl_destroy_nodes(&uberblock_tree, &cookie)) != NULL)
4845 umem_free(node, sizeof (cksum_record_t));
4846
4847 avl_destroy(&config_tree);
4848 avl_destroy(&uberblock_tree);
4849
4850 (void) close(fd);
4851
4852 return (config_found == B_FALSE ? 2 :
4853 (error == B_TRUE ? 1 : 0));
4854 }
4855
4856 static uint64_t dataset_feature_count[SPA_FEATURES];
4857 static uint64_t global_feature_count[SPA_FEATURES];
4858 static uint64_t remap_deadlist_count = 0;
4859
4860 /*ARGSUSED*/
4861 static int
4862 dump_one_objset(const char *dsname, void *arg)
4863 {
4864 int error;
4865 objset_t *os;
4866 spa_feature_t f;
4867
4868 error = open_objset(dsname, FTAG, &os);
4869 if (error != 0)
4870 return (0);
4871
4872 for (f = 0; f < SPA_FEATURES; f++) {
4873 if (!dsl_dataset_feature_is_active(dmu_objset_ds(os), f))
4874 continue;
4875 ASSERT(spa_feature_table[f].fi_flags &
4876 ZFEATURE_FLAG_PER_DATASET);
4877 dataset_feature_count[f]++;
4878 }
4879
4880 if (dsl_dataset_remap_deadlist_exists(dmu_objset_ds(os))) {
4881 remap_deadlist_count++;
4882 }
4883
4884 for (dsl_bookmark_node_t *dbn =
4885 avl_first(&dmu_objset_ds(os)->ds_bookmarks); dbn != NULL;
4886 dbn = AVL_NEXT(&dmu_objset_ds(os)->ds_bookmarks, dbn)) {
4887 mos_obj_refd(dbn->dbn_phys.zbm_redaction_obj);
4888 if (dbn->dbn_phys.zbm_redaction_obj != 0)
4889 global_feature_count[SPA_FEATURE_REDACTION_BOOKMARKS]++;
4890 if (dbn->dbn_phys.zbm_flags & ZBM_FLAG_HAS_FBN)
4891 global_feature_count[SPA_FEATURE_BOOKMARK_WRITTEN]++;
4892 }
4893
4894 if (dsl_deadlist_is_open(&dmu_objset_ds(os)->ds_dir->dd_livelist) &&
4895 !dmu_objset_is_snapshot(os)) {
4896 global_feature_count[SPA_FEATURE_LIVELIST]++;
4897 }
4898
4899 dump_objset(os);
4900 close_objset(os, FTAG);
4901 fuid_table_destroy();
4902 return (0);
4903 }
4904
4905 /*
4906 * Block statistics.
4907 */
4908 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2)
4909 typedef struct zdb_blkstats {
4910 uint64_t zb_asize;
4911 uint64_t zb_lsize;
4912 uint64_t zb_psize;
4913 uint64_t zb_count;
4914 uint64_t zb_gangs;
4915 uint64_t zb_ditto_samevdev;
4916 uint64_t zb_ditto_same_ms;
4917 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
4918 } zdb_blkstats_t;
4919
4920 /*
4921 * Extended object types to report deferred frees and dedup auto-ditto blocks.
4922 */
4923 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
4924 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
4925 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
4926 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
4927
4928 static const char *zdb_ot_extname[] = {
4929 "deferred free",
4930 "dedup ditto",
4931 "other",
4932 "Total",
4933 };
4934
4935 #define ZB_TOTAL DN_MAX_LEVELS
4936 #define SPA_MAX_FOR_16M (SPA_MAXBLOCKSHIFT+1)
4937
4938 typedef struct zdb_cb {
4939 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
4940 uint64_t zcb_removing_size;
4941 uint64_t zcb_checkpoint_size;
4942 uint64_t zcb_dedup_asize;
4943 uint64_t zcb_dedup_blocks;
4944 uint64_t zcb_psize_count[SPA_MAX_FOR_16M];
4945 uint64_t zcb_lsize_count[SPA_MAX_FOR_16M];
4946 uint64_t zcb_asize_count[SPA_MAX_FOR_16M];
4947 uint64_t zcb_psize_len[SPA_MAX_FOR_16M];
4948 uint64_t zcb_lsize_len[SPA_MAX_FOR_16M];
4949 uint64_t zcb_asize_len[SPA_MAX_FOR_16M];
4950 uint64_t zcb_psize_total;
4951 uint64_t zcb_lsize_total;
4952 uint64_t zcb_asize_total;
4953 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
4954 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
4955 [BPE_PAYLOAD_SIZE + 1];
4956 uint64_t zcb_start;
4957 hrtime_t zcb_lastprint;
4958 uint64_t zcb_totalasize;
4959 uint64_t zcb_errors[256];
4960 int zcb_readfails;
4961 int zcb_haderrors;
4962 spa_t *zcb_spa;
4963 uint32_t **zcb_vd_obsolete_counts;
4964 } zdb_cb_t;
4965
4966 /* test if two DVA offsets from same vdev are within the same metaslab */
4967 static boolean_t
4968 same_metaslab(spa_t *spa, uint64_t vdev, uint64_t off1, uint64_t off2)
4969 {
4970 vdev_t *vd = vdev_lookup_top(spa, vdev);
4971 uint64_t ms_shift = vd->vdev_ms_shift;
4972
4973 return ((off1 >> ms_shift) == (off2 >> ms_shift));
4974 }
4975
4976 /*
4977 * Used to simplify reporting of the histogram data.
4978 */
4979 typedef struct one_histo {
4980 char *name;
4981 uint64_t *count;
4982 uint64_t *len;
4983 uint64_t cumulative;
4984 } one_histo_t;
4985
4986 /*
4987 * The number of separate histograms processed for psize, lsize and asize.
4988 */
4989 #define NUM_HISTO 3
4990
4991 /*
4992 * This routine will create a fixed column size output of three different
4993 * histograms showing by blocksize of 512 - 2^ SPA_MAX_FOR_16M
4994 * the count, length and cumulative length of the psize, lsize and
4995 * asize blocks.
4996 *
4997 * All three types of blocks are listed on a single line
4998 *
4999 * By default the table is printed in nicenumber format (e.g. 123K) but
5000 * if the '-P' parameter is specified then the full raw number (parseable)
5001 * is printed out.
5002 */
5003 static void
5004 dump_size_histograms(zdb_cb_t *zcb)
5005 {
5006 /*
5007 * A temporary buffer that allows us to convert a number into
5008 * a string using zdb_nicenumber to allow either raw or human
5009 * readable numbers to be output.
5010 */
5011 char numbuf[32];
5012
5013 /*
5014 * Define titles which are used in the headers of the tables
5015 * printed by this routine.
5016 */
5017 const char blocksize_title1[] = "block";
5018 const char blocksize_title2[] = "size";
5019 const char count_title[] = "Count";
5020 const char length_title[] = "Size";
5021 const char cumulative_title[] = "Cum.";
5022
5023 /*
5024 * Setup the histogram arrays (psize, lsize, and asize).
5025 */
5026 one_histo_t parm_histo[NUM_HISTO];
5027
5028 parm_histo[0].name = "psize";
5029 parm_histo[0].count = zcb->zcb_psize_count;
5030 parm_histo[0].len = zcb->zcb_psize_len;
5031 parm_histo[0].cumulative = 0;
5032
5033 parm_histo[1].name = "lsize";
5034 parm_histo[1].count = zcb->zcb_lsize_count;
5035 parm_histo[1].len = zcb->zcb_lsize_len;
5036 parm_histo[1].cumulative = 0;
5037
5038 parm_histo[2].name = "asize";
5039 parm_histo[2].count = zcb->zcb_asize_count;
5040 parm_histo[2].len = zcb->zcb_asize_len;
5041 parm_histo[2].cumulative = 0;
5042
5043
5044 (void) printf("\nBlock Size Histogram\n");
5045 /*
5046 * Print the first line titles
5047 */
5048 if (dump_opt['P'])
5049 (void) printf("\n%s\t", blocksize_title1);
5050 else
5051 (void) printf("\n%7s ", blocksize_title1);
5052
5053 for (int j = 0; j < NUM_HISTO; j++) {
5054 if (dump_opt['P']) {
5055 if (j < NUM_HISTO - 1) {
5056 (void) printf("%s\t\t\t", parm_histo[j].name);
5057 } else {
5058 /* Don't print trailing spaces */
5059 (void) printf(" %s", parm_histo[j].name);
5060 }
5061 } else {
5062 if (j < NUM_HISTO - 1) {
5063 /* Left aligned strings in the output */
5064 (void) printf("%-7s ",
5065 parm_histo[j].name);
5066 } else {
5067 /* Don't print trailing spaces */
5068 (void) printf("%s", parm_histo[j].name);
5069 }
5070 }
5071 }
5072 (void) printf("\n");
5073
5074 /*
5075 * Print the second line titles
5076 */
5077 if (dump_opt['P']) {
5078 (void) printf("%s\t", blocksize_title2);
5079 } else {
5080 (void) printf("%7s ", blocksize_title2);
5081 }
5082
5083 for (int i = 0; i < NUM_HISTO; i++) {
5084 if (dump_opt['P']) {
5085 (void) printf("%s\t%s\t%s\t",
5086 count_title, length_title, cumulative_title);
5087 } else {
5088 (void) printf("%7s%7s%7s",
5089 count_title, length_title, cumulative_title);
5090 }
5091 }
5092 (void) printf("\n");
5093
5094 /*
5095 * Print the rows
5096 */
5097 for (int i = SPA_MINBLOCKSHIFT; i < SPA_MAX_FOR_16M; i++) {
5098
5099 /*
5100 * Print the first column showing the blocksize
5101 */
5102 zdb_nicenum((1ULL << i), numbuf, sizeof (numbuf));
5103
5104 if (dump_opt['P']) {
5105 printf("%s", numbuf);
5106 } else {
5107 printf("%7s:", numbuf);
5108 }
5109
5110 /*
5111 * Print the remaining set of 3 columns per size:
5112 * for psize, lsize and asize
5113 */
5114 for (int j = 0; j < NUM_HISTO; j++) {
5115 parm_histo[j].cumulative += parm_histo[j].len[i];
5116
5117 zdb_nicenum(parm_histo[j].count[i],
5118 numbuf, sizeof (numbuf));
5119 if (dump_opt['P'])
5120 (void) printf("\t%s", numbuf);
5121 else
5122 (void) printf("%7s", numbuf);
5123
5124 zdb_nicenum(parm_histo[j].len[i],
5125 numbuf, sizeof (numbuf));
5126 if (dump_opt['P'])
5127 (void) printf("\t%s", numbuf);
5128 else
5129 (void) printf("%7s", numbuf);
5130
5131 zdb_nicenum(parm_histo[j].cumulative,
5132 numbuf, sizeof (numbuf));
5133 if (dump_opt['P'])
5134 (void) printf("\t%s", numbuf);
5135 else
5136 (void) printf("%7s", numbuf);
5137 }
5138 (void) printf("\n");
5139 }
5140 }
5141
5142 static void
5143 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
5144 dmu_object_type_t type)
5145 {
5146 uint64_t refcnt = 0;
5147 int i;
5148
5149 ASSERT(type < ZDB_OT_TOTAL);
5150
5151 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
5152 return;
5153
5154 spa_config_enter(zcb->zcb_spa, SCL_CONFIG, FTAG, RW_READER);
5155
5156 for (i = 0; i < 4; i++) {
5157 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
5158 int t = (i & 1) ? type : ZDB_OT_TOTAL;
5159 int equal;
5160 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
5161
5162 zb->zb_asize += BP_GET_ASIZE(bp);
5163 zb->zb_lsize += BP_GET_LSIZE(bp);
5164 zb->zb_psize += BP_GET_PSIZE(bp);
5165 zb->zb_count++;
5166
5167 /*
5168 * The histogram is only big enough to record blocks up to
5169 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last,
5170 * "other", bucket.
5171 */
5172 unsigned idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT;
5173 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1);
5174 zb->zb_psize_histogram[idx]++;
5175
5176 zb->zb_gangs += BP_COUNT_GANG(bp);
5177
5178 switch (BP_GET_NDVAS(bp)) {
5179 case 2:
5180 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
5181 DVA_GET_VDEV(&bp->blk_dva[1])) {
5182 zb->zb_ditto_samevdev++;
5183
5184 if (same_metaslab(zcb->zcb_spa,
5185 DVA_GET_VDEV(&bp->blk_dva[0]),
5186 DVA_GET_OFFSET(&bp->blk_dva[0]),
5187 DVA_GET_OFFSET(&bp->blk_dva[1])))
5188 zb->zb_ditto_same_ms++;
5189 }
5190 break;
5191 case 3:
5192 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
5193 DVA_GET_VDEV(&bp->blk_dva[1])) +
5194 (DVA_GET_VDEV(&bp->blk_dva[0]) ==
5195 DVA_GET_VDEV(&bp->blk_dva[2])) +
5196 (DVA_GET_VDEV(&bp->blk_dva[1]) ==
5197 DVA_GET_VDEV(&bp->blk_dva[2]));
5198 if (equal != 0) {
5199 zb->zb_ditto_samevdev++;
5200
5201 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
5202 DVA_GET_VDEV(&bp->blk_dva[1]) &&
5203 same_metaslab(zcb->zcb_spa,
5204 DVA_GET_VDEV(&bp->blk_dva[0]),
5205 DVA_GET_OFFSET(&bp->blk_dva[0]),
5206 DVA_GET_OFFSET(&bp->blk_dva[1])))
5207 zb->zb_ditto_same_ms++;
5208 else if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
5209 DVA_GET_VDEV(&bp->blk_dva[2]) &&
5210 same_metaslab(zcb->zcb_spa,
5211 DVA_GET_VDEV(&bp->blk_dva[0]),
5212 DVA_GET_OFFSET(&bp->blk_dva[0]),
5213 DVA_GET_OFFSET(&bp->blk_dva[2])))
5214 zb->zb_ditto_same_ms++;
5215 else if (DVA_GET_VDEV(&bp->blk_dva[1]) ==
5216 DVA_GET_VDEV(&bp->blk_dva[2]) &&
5217 same_metaslab(zcb->zcb_spa,
5218 DVA_GET_VDEV(&bp->blk_dva[1]),
5219 DVA_GET_OFFSET(&bp->blk_dva[1]),
5220 DVA_GET_OFFSET(&bp->blk_dva[2])))
5221 zb->zb_ditto_same_ms++;
5222 }
5223 break;
5224 }
5225 }
5226
5227 spa_config_exit(zcb->zcb_spa, SCL_CONFIG, FTAG);
5228
5229 if (BP_IS_EMBEDDED(bp)) {
5230 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
5231 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
5232 [BPE_GET_PSIZE(bp)]++;
5233 return;
5234 }
5235 /*
5236 * The binning histogram bins by powers of two up to
5237 * SPA_MAXBLOCKSIZE rather than creating bins for
5238 * every possible blocksize found in the pool.
5239 */
5240 int bin = highbit64(BP_GET_PSIZE(bp)) - 1;
5241
5242 zcb->zcb_psize_count[bin]++;
5243 zcb->zcb_psize_len[bin] += BP_GET_PSIZE(bp);
5244 zcb->zcb_psize_total += BP_GET_PSIZE(bp);
5245
5246 bin = highbit64(BP_GET_LSIZE(bp)) - 1;
5247
5248 zcb->zcb_lsize_count[bin]++;
5249 zcb->zcb_lsize_len[bin] += BP_GET_LSIZE(bp);
5250 zcb->zcb_lsize_total += BP_GET_LSIZE(bp);
5251
5252 bin = highbit64(BP_GET_ASIZE(bp)) - 1;
5253
5254 zcb->zcb_asize_count[bin]++;
5255 zcb->zcb_asize_len[bin] += BP_GET_ASIZE(bp);
5256 zcb->zcb_asize_total += BP_GET_ASIZE(bp);
5257
5258 if (dump_opt['L'])
5259 return;
5260
5261 if (BP_GET_DEDUP(bp)) {
5262 ddt_t *ddt;
5263 ddt_entry_t *dde;
5264
5265 ddt = ddt_select(zcb->zcb_spa, bp);
5266 ddt_enter(ddt);
5267 dde = ddt_lookup(ddt, bp, B_FALSE);
5268
5269 if (dde == NULL) {
5270 refcnt = 0;
5271 } else {
5272 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
5273 ddt_phys_decref(ddp);
5274 refcnt = ddp->ddp_refcnt;
5275 if (ddt_phys_total_refcnt(dde) == 0)
5276 ddt_remove(ddt, dde);
5277 }
5278 ddt_exit(ddt);
5279 }
5280
5281 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
5282 refcnt ? 0 : spa_min_claim_txg(zcb->zcb_spa),
5283 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
5284 }
5285
5286 static void
5287 zdb_blkptr_done(zio_t *zio)
5288 {
5289 spa_t *spa = zio->io_spa;
5290 blkptr_t *bp = zio->io_bp;
5291 int ioerr = zio->io_error;
5292 zdb_cb_t *zcb = zio->io_private;
5293 zbookmark_phys_t *zb = &zio->io_bookmark;
5294
5295 mutex_enter(&spa->spa_scrub_lock);
5296 spa->spa_load_verify_bytes -= BP_GET_PSIZE(bp);
5297 cv_broadcast(&spa->spa_scrub_io_cv);
5298
5299 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
5300 char blkbuf[BP_SPRINTF_LEN];
5301
5302 zcb->zcb_haderrors = 1;
5303 zcb->zcb_errors[ioerr]++;
5304
5305 if (dump_opt['b'] >= 2)
5306 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
5307 else
5308 blkbuf[0] = '\0';
5309
5310 (void) printf("zdb_blkptr_cb: "
5311 "Got error %d reading "
5312 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
5313 ioerr,
5314 (u_longlong_t)zb->zb_objset,
5315 (u_longlong_t)zb->zb_object,
5316 (u_longlong_t)zb->zb_level,
5317 (u_longlong_t)zb->zb_blkid,
5318 blkbuf);
5319 }
5320 mutex_exit(&spa->spa_scrub_lock);
5321
5322 abd_free(zio->io_abd);
5323 }
5324
5325 static int
5326 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
5327 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
5328 {
5329 zdb_cb_t *zcb = arg;
5330 dmu_object_type_t type;
5331 boolean_t is_metadata;
5332
5333 if (zb->zb_level == ZB_DNODE_LEVEL)
5334 return (0);
5335
5336 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
5337 char blkbuf[BP_SPRINTF_LEN];
5338 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
5339 (void) printf("objset %llu object %llu "
5340 "level %lld offset 0x%llx %s\n",
5341 (u_longlong_t)zb->zb_objset,
5342 (u_longlong_t)zb->zb_object,
5343 (longlong_t)zb->zb_level,
5344 (u_longlong_t)blkid2offset(dnp, bp, zb),
5345 blkbuf);
5346 }
5347
5348 if (BP_IS_HOLE(bp) || BP_IS_REDACTED(bp))
5349 return (0);
5350
5351 type = BP_GET_TYPE(bp);
5352
5353 zdb_count_block(zcb, zilog, bp,
5354 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
5355
5356 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
5357
5358 if (!BP_IS_EMBEDDED(bp) &&
5359 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
5360 size_t size = BP_GET_PSIZE(bp);
5361 abd_t *abd = abd_alloc(size, B_FALSE);
5362 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
5363
5364 /* If it's an intent log block, failure is expected. */
5365 if (zb->zb_level == ZB_ZIL_LEVEL)
5366 flags |= ZIO_FLAG_SPECULATIVE;
5367
5368 mutex_enter(&spa->spa_scrub_lock);
5369 while (spa->spa_load_verify_bytes > max_inflight_bytes)
5370 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
5371 spa->spa_load_verify_bytes += size;
5372 mutex_exit(&spa->spa_scrub_lock);
5373
5374 zio_nowait(zio_read(NULL, spa, bp, abd, size,
5375 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
5376 }
5377
5378 zcb->zcb_readfails = 0;
5379
5380 /* only call gethrtime() every 100 blocks */
5381 static int iters;
5382 if (++iters > 100)
5383 iters = 0;
5384 else
5385 return (0);
5386
5387 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) {
5388 uint64_t now = gethrtime();
5389 char buf[10];
5390 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
5391 int kb_per_sec =
5392 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
5393 int sec_remaining =
5394 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
5395
5396 /* make sure nicenum has enough space */
5397 CTASSERT(sizeof (buf) >= NN_NUMBUF_SZ);
5398
5399 zfs_nicebytes(bytes, buf, sizeof (buf));
5400 (void) fprintf(stderr,
5401 "\r%5s completed (%4dMB/s) "
5402 "estimated time remaining: %uhr %02umin %02usec ",
5403 buf, kb_per_sec / 1024,
5404 sec_remaining / 60 / 60,
5405 sec_remaining / 60 % 60,
5406 sec_remaining % 60);
5407
5408 zcb->zcb_lastprint = now;
5409 }
5410
5411 return (0);
5412 }
5413
5414 static void
5415 zdb_leak(void *arg, uint64_t start, uint64_t size)
5416 {
5417 vdev_t *vd = arg;
5418
5419 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
5420 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
5421 }
5422
5423 static metaslab_ops_t zdb_metaslab_ops = {
5424 NULL /* alloc */
5425 };
5426
5427 /* ARGSUSED */
5428 static int
5429 load_unflushed_svr_segs_cb(spa_t *spa, space_map_entry_t *sme,
5430 uint64_t txg, void *arg)
5431 {
5432 spa_vdev_removal_t *svr = arg;
5433
5434 uint64_t offset = sme->sme_offset;
5435 uint64_t size = sme->sme_run;
5436
5437 /* skip vdevs we don't care about */
5438 if (sme->sme_vdev != svr->svr_vdev_id)
5439 return (0);
5440
5441 vdev_t *vd = vdev_lookup_top(spa, sme->sme_vdev);
5442 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift];
5443 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE);
5444
5445 if (txg < metaslab_unflushed_txg(ms))
5446 return (0);
5447
5448 if (sme->sme_type == SM_ALLOC)
5449 range_tree_add(svr->svr_allocd_segs, offset, size);
5450 else
5451 range_tree_remove(svr->svr_allocd_segs, offset, size);
5452
5453 return (0);
5454 }
5455
5456 /* ARGSUSED */
5457 static void
5458 claim_segment_impl_cb(uint64_t inner_offset, vdev_t *vd, uint64_t offset,
5459 uint64_t size, void *arg)
5460 {
5461 /*
5462 * This callback was called through a remap from
5463 * a device being removed. Therefore, the vdev that
5464 * this callback is applied to is a concrete
5465 * vdev.
5466 */
5467 ASSERT(vdev_is_concrete(vd));
5468
5469 VERIFY0(metaslab_claim_impl(vd, offset, size,
5470 spa_min_claim_txg(vd->vdev_spa)));
5471 }
5472
5473 static void
5474 claim_segment_cb(void *arg, uint64_t offset, uint64_t size)
5475 {
5476 vdev_t *vd = arg;
5477
5478 vdev_indirect_ops.vdev_op_remap(vd, offset, size,
5479 claim_segment_impl_cb, NULL);
5480 }
5481
5482 /*
5483 * After accounting for all allocated blocks that are directly referenced,
5484 * we might have missed a reference to a block from a partially complete
5485 * (and thus unused) indirect mapping object. We perform a secondary pass
5486 * through the metaslabs we have already mapped and claim the destination
5487 * blocks.
5488 */
5489 static void
5490 zdb_claim_removing(spa_t *spa, zdb_cb_t *zcb)
5491 {
5492 if (dump_opt['L'])
5493 return;
5494
5495 if (spa->spa_vdev_removal == NULL)
5496 return;
5497
5498 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
5499
5500 spa_vdev_removal_t *svr = spa->spa_vdev_removal;
5501 vdev_t *vd = vdev_lookup_top(spa, svr->svr_vdev_id);
5502 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
5503
5504 ASSERT0(range_tree_space(svr->svr_allocd_segs));
5505
5506 range_tree_t *allocs = range_tree_create(NULL, RANGE_SEG64, NULL, 0, 0);
5507 for (uint64_t msi = 0; msi < vd->vdev_ms_count; msi++) {
5508 metaslab_t *msp = vd->vdev_ms[msi];
5509
5510 ASSERT0(range_tree_space(allocs));
5511 if (msp->ms_sm != NULL)
5512 VERIFY0(space_map_load(msp->ms_sm, allocs, SM_ALLOC));
5513 range_tree_vacate(allocs, range_tree_add, svr->svr_allocd_segs);
5514 }
5515 range_tree_destroy(allocs);
5516
5517 iterate_through_spacemap_logs(spa, load_unflushed_svr_segs_cb, svr);
5518
5519 /*
5520 * Clear everything past what has been synced,
5521 * because we have not allocated mappings for
5522 * it yet.
5523 */
5524 range_tree_clear(svr->svr_allocd_segs,
5525 vdev_indirect_mapping_max_offset(vim),
5526 vd->vdev_asize - vdev_indirect_mapping_max_offset(vim));
5527
5528 zcb->zcb_removing_size += range_tree_space(svr->svr_allocd_segs);
5529 range_tree_vacate(svr->svr_allocd_segs, claim_segment_cb, vd);
5530
5531 spa_config_exit(spa, SCL_CONFIG, FTAG);
5532 }
5533
5534 /* ARGSUSED */
5535 static int
5536 increment_indirect_mapping_cb(void *arg, const blkptr_t *bp, boolean_t bp_freed,
5537 dmu_tx_t *tx)
5538 {
5539 zdb_cb_t *zcb = arg;
5540 spa_t *spa = zcb->zcb_spa;
5541 vdev_t *vd;
5542 const dva_t *dva = &bp->blk_dva[0];
5543
5544 ASSERT(!bp_freed);
5545 ASSERT(!dump_opt['L']);
5546 ASSERT3U(BP_GET_NDVAS(bp), ==, 1);
5547
5548 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
5549 vd = vdev_lookup_top(zcb->zcb_spa, DVA_GET_VDEV(dva));
5550 ASSERT3P(vd, !=, NULL);
5551 spa_config_exit(spa, SCL_VDEV, FTAG);
5552
5553 ASSERT(vd->vdev_indirect_config.vic_mapping_object != 0);
5554 ASSERT3P(zcb->zcb_vd_obsolete_counts[vd->vdev_id], !=, NULL);
5555
5556 vdev_indirect_mapping_increment_obsolete_count(
5557 vd->vdev_indirect_mapping,
5558 DVA_GET_OFFSET(dva), DVA_GET_ASIZE(dva),
5559 zcb->zcb_vd_obsolete_counts[vd->vdev_id]);
5560
5561 return (0);
5562 }
5563
5564 static uint32_t *
5565 zdb_load_obsolete_counts(vdev_t *vd)
5566 {
5567 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
5568 spa_t *spa = vd->vdev_spa;
5569 spa_condensing_indirect_phys_t *scip =
5570 &spa->spa_condensing_indirect_phys;
5571 uint64_t obsolete_sm_object;
5572 uint32_t *counts;
5573
5574 VERIFY0(vdev_obsolete_sm_object(vd, &obsolete_sm_object));
5575 EQUIV(obsolete_sm_object != 0, vd->vdev_obsolete_sm != NULL);
5576 counts = vdev_indirect_mapping_load_obsolete_counts(vim);
5577 if (vd->vdev_obsolete_sm != NULL) {
5578 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts,
5579 vd->vdev_obsolete_sm);
5580 }
5581 if (scip->scip_vdev == vd->vdev_id &&
5582 scip->scip_prev_obsolete_sm_object != 0) {
5583 space_map_t *prev_obsolete_sm = NULL;
5584 VERIFY0(space_map_open(&prev_obsolete_sm, spa->spa_meta_objset,
5585 scip->scip_prev_obsolete_sm_object, 0, vd->vdev_asize, 0));
5586 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts,
5587 prev_obsolete_sm);
5588 space_map_close(prev_obsolete_sm);
5589 }
5590 return (counts);
5591 }
5592
5593 static void
5594 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
5595 {
5596 ddt_bookmark_t ddb;
5597 ddt_entry_t dde;
5598 int error;
5599 int p;
5600
5601 ASSERT(!dump_opt['L']);
5602
5603 bzero(&ddb, sizeof (ddb));
5604 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
5605 blkptr_t blk;
5606 ddt_phys_t *ddp = dde.dde_phys;
5607
5608 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
5609 return;
5610
5611 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
5612
5613 for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
5614 if (ddp->ddp_phys_birth == 0)
5615 continue;
5616 ddt_bp_create(ddb.ddb_checksum,
5617 &dde.dde_key, ddp, &blk);
5618 if (p == DDT_PHYS_DITTO) {
5619 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
5620 } else {
5621 zcb->zcb_dedup_asize +=
5622 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
5623 zcb->zcb_dedup_blocks++;
5624 }
5625 }
5626 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
5627 ddt_enter(ddt);
5628 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
5629 ddt_exit(ddt);
5630 }
5631
5632 ASSERT(error == ENOENT);
5633 }
5634
5635 typedef struct checkpoint_sm_exclude_entry_arg {
5636 vdev_t *cseea_vd;
5637 uint64_t cseea_checkpoint_size;
5638 } checkpoint_sm_exclude_entry_arg_t;
5639
5640 static int
5641 checkpoint_sm_exclude_entry_cb(space_map_entry_t *sme, void *arg)
5642 {
5643 checkpoint_sm_exclude_entry_arg_t *cseea = arg;
5644 vdev_t *vd = cseea->cseea_vd;
5645 metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift];
5646 uint64_t end = sme->sme_offset + sme->sme_run;
5647
5648 ASSERT(sme->sme_type == SM_FREE);
5649
5650 /*
5651 * Since the vdev_checkpoint_sm exists in the vdev level
5652 * and the ms_sm space maps exist in the metaslab level,
5653 * an entry in the checkpoint space map could theoretically
5654 * cross the boundaries of the metaslab that it belongs.
5655 *
5656 * In reality, because of the way that we populate and
5657 * manipulate the checkpoint's space maps currently,
5658 * there shouldn't be any entries that cross metaslabs.
5659 * Hence the assertion below.
5660 *
5661 * That said, there is no fundamental requirement that
5662 * the checkpoint's space map entries should not cross
5663 * metaslab boundaries. So if needed we could add code
5664 * that handles metaslab-crossing segments in the future.
5665 */
5666 VERIFY3U(sme->sme_offset, >=, ms->ms_start);
5667 VERIFY3U(end, <=, ms->ms_start + ms->ms_size);
5668
5669 /*
5670 * By removing the entry from the allocated segments we
5671 * also verify that the entry is there to begin with.
5672 */
5673 mutex_enter(&ms->ms_lock);
5674 range_tree_remove(ms->ms_allocatable, sme->sme_offset, sme->sme_run);
5675 mutex_exit(&ms->ms_lock);
5676
5677 cseea->cseea_checkpoint_size += sme->sme_run;
5678 return (0);
5679 }
5680
5681 static void
5682 zdb_leak_init_vdev_exclude_checkpoint(vdev_t *vd, zdb_cb_t *zcb)
5683 {
5684 spa_t *spa = vd->vdev_spa;
5685 space_map_t *checkpoint_sm = NULL;
5686 uint64_t checkpoint_sm_obj;
5687
5688 /*
5689 * If there is no vdev_top_zap, we are in a pool whose
5690 * version predates the pool checkpoint feature.
5691 */
5692 if (vd->vdev_top_zap == 0)
5693 return;
5694
5695 /*
5696 * If there is no reference of the vdev_checkpoint_sm in
5697 * the vdev_top_zap, then one of the following scenarios
5698 * is true:
5699 *
5700 * 1] There is no checkpoint
5701 * 2] There is a checkpoint, but no checkpointed blocks
5702 * have been freed yet
5703 * 3] The current vdev is indirect
5704 *
5705 * In these cases we return immediately.
5706 */
5707 if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap,
5708 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0)
5709 return;
5710
5711 VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap,
5712 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, sizeof (uint64_t), 1,
5713 &checkpoint_sm_obj));
5714
5715 checkpoint_sm_exclude_entry_arg_t cseea;
5716 cseea.cseea_vd = vd;
5717 cseea.cseea_checkpoint_size = 0;
5718
5719 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa),
5720 checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift));
5721
5722 VERIFY0(space_map_iterate(checkpoint_sm,
5723 space_map_length(checkpoint_sm),
5724 checkpoint_sm_exclude_entry_cb, &cseea));
5725 space_map_close(checkpoint_sm);
5726
5727 zcb->zcb_checkpoint_size += cseea.cseea_checkpoint_size;
5728 }
5729
5730 static void
5731 zdb_leak_init_exclude_checkpoint(spa_t *spa, zdb_cb_t *zcb)
5732 {
5733 ASSERT(!dump_opt['L']);
5734
5735 vdev_t *rvd = spa->spa_root_vdev;
5736 for (uint64_t c = 0; c < rvd->vdev_children; c++) {
5737 ASSERT3U(c, ==, rvd->vdev_child[c]->vdev_id);
5738 zdb_leak_init_vdev_exclude_checkpoint(rvd->vdev_child[c], zcb);
5739 }
5740 }
5741
5742 static int
5743 count_unflushed_space_cb(spa_t *spa, space_map_entry_t *sme,
5744 uint64_t txg, void *arg)
5745 {
5746 int64_t *ualloc_space = arg;
5747
5748 uint64_t offset = sme->sme_offset;
5749 uint64_t vdev_id = sme->sme_vdev;
5750
5751 vdev_t *vd = vdev_lookup_top(spa, vdev_id);
5752 if (!vdev_is_concrete(vd))
5753 return (0);
5754
5755 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift];
5756 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE);
5757
5758 if (txg < metaslab_unflushed_txg(ms))
5759 return (0);
5760
5761 if (sme->sme_type == SM_ALLOC)
5762 *ualloc_space += sme->sme_run;
5763 else
5764 *ualloc_space -= sme->sme_run;
5765
5766 return (0);
5767 }
5768
5769 static int64_t
5770 get_unflushed_alloc_space(spa_t *spa)
5771 {
5772 if (dump_opt['L'])
5773 return (0);
5774
5775 int64_t ualloc_space = 0;
5776 iterate_through_spacemap_logs(spa, count_unflushed_space_cb,
5777 &ualloc_space);
5778 return (ualloc_space);
5779 }
5780
5781 static int
5782 load_unflushed_cb(spa_t *spa, space_map_entry_t *sme, uint64_t txg, void *arg)
5783 {
5784 maptype_t *uic_maptype = arg;
5785
5786 uint64_t offset = sme->sme_offset;
5787 uint64_t size = sme->sme_run;
5788 uint64_t vdev_id = sme->sme_vdev;
5789
5790 vdev_t *vd = vdev_lookup_top(spa, vdev_id);
5791
5792 /* skip indirect vdevs */
5793 if (!vdev_is_concrete(vd))
5794 return (0);
5795
5796 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift];
5797
5798 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE);
5799 ASSERT(*uic_maptype == SM_ALLOC || *uic_maptype == SM_FREE);
5800
5801 if (txg < metaslab_unflushed_txg(ms))
5802 return (0);
5803
5804 if (*uic_maptype == sme->sme_type)
5805 range_tree_add(ms->ms_allocatable, offset, size);
5806 else
5807 range_tree_remove(ms->ms_allocatable, offset, size);
5808
5809 return (0);
5810 }
5811
5812 static void
5813 load_unflushed_to_ms_allocatables(spa_t *spa, maptype_t maptype)
5814 {
5815 iterate_through_spacemap_logs(spa, load_unflushed_cb, &maptype);
5816 }
5817
5818 static void
5819 load_concrete_ms_allocatable_trees(spa_t *spa, maptype_t maptype)
5820 {
5821 vdev_t *rvd = spa->spa_root_vdev;
5822 for (uint64_t i = 0; i < rvd->vdev_children; i++) {
5823 vdev_t *vd = rvd->vdev_child[i];
5824
5825 ASSERT3U(i, ==, vd->vdev_id);
5826
5827 if (vd->vdev_ops == &vdev_indirect_ops)
5828 continue;
5829
5830 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
5831 metaslab_t *msp = vd->vdev_ms[m];
5832
5833 (void) fprintf(stderr,
5834 "\rloading concrete vdev %llu, "
5835 "metaslab %llu of %llu ...",
5836 (longlong_t)vd->vdev_id,
5837 (longlong_t)msp->ms_id,
5838 (longlong_t)vd->vdev_ms_count);
5839
5840 mutex_enter(&msp->ms_lock);
5841 range_tree_vacate(msp->ms_allocatable, NULL, NULL);
5842
5843 /*
5844 * We don't want to spend the CPU manipulating the
5845 * size-ordered tree, so clear the range_tree ops.
5846 */
5847 msp->ms_allocatable->rt_ops = NULL;
5848
5849 if (msp->ms_sm != NULL) {
5850 VERIFY0(space_map_load(msp->ms_sm,
5851 msp->ms_allocatable, maptype));
5852 }
5853 if (!msp->ms_loaded)
5854 msp->ms_loaded = B_TRUE;
5855 mutex_exit(&msp->ms_lock);
5856 }
5857 }
5858
5859 load_unflushed_to_ms_allocatables(spa, maptype);
5860 }
5861
5862 /*
5863 * vm_idxp is an in-out parameter which (for indirect vdevs) is the
5864 * index in vim_entries that has the first entry in this metaslab.
5865 * On return, it will be set to the first entry after this metaslab.
5866 */
5867 static void
5868 load_indirect_ms_allocatable_tree(vdev_t *vd, metaslab_t *msp,
5869 uint64_t *vim_idxp)
5870 {
5871 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
5872
5873 mutex_enter(&msp->ms_lock);
5874 range_tree_vacate(msp->ms_allocatable, NULL, NULL);
5875
5876 /*
5877 * We don't want to spend the CPU manipulating the
5878 * size-ordered tree, so clear the range_tree ops.
5879 */
5880 msp->ms_allocatable->rt_ops = NULL;
5881
5882 for (; *vim_idxp < vdev_indirect_mapping_num_entries(vim);
5883 (*vim_idxp)++) {
5884 vdev_indirect_mapping_entry_phys_t *vimep =
5885 &vim->vim_entries[*vim_idxp];
5886 uint64_t ent_offset = DVA_MAPPING_GET_SRC_OFFSET(vimep);
5887 uint64_t ent_len = DVA_GET_ASIZE(&vimep->vimep_dst);
5888 ASSERT3U(ent_offset, >=, msp->ms_start);
5889 if (ent_offset >= msp->ms_start + msp->ms_size)
5890 break;
5891
5892 /*
5893 * Mappings do not cross metaslab boundaries,
5894 * because we create them by walking the metaslabs.
5895 */
5896 ASSERT3U(ent_offset + ent_len, <=,
5897 msp->ms_start + msp->ms_size);
5898 range_tree_add(msp->ms_allocatable, ent_offset, ent_len);
5899 }
5900
5901 if (!msp->ms_loaded)
5902 msp->ms_loaded = B_TRUE;
5903 mutex_exit(&msp->ms_lock);
5904 }
5905
5906 static void
5907 zdb_leak_init_prepare_indirect_vdevs(spa_t *spa, zdb_cb_t *zcb)
5908 {
5909 ASSERT(!dump_opt['L']);
5910
5911 vdev_t *rvd = spa->spa_root_vdev;
5912 for (uint64_t c = 0; c < rvd->vdev_children; c++) {
5913 vdev_t *vd = rvd->vdev_child[c];
5914
5915 ASSERT3U(c, ==, vd->vdev_id);
5916
5917 if (vd->vdev_ops != &vdev_indirect_ops)
5918 continue;
5919
5920 /*
5921 * Note: we don't check for mapping leaks on
5922 * removing vdevs because their ms_allocatable's
5923 * are used to look for leaks in allocated space.
5924 */
5925 zcb->zcb_vd_obsolete_counts[c] = zdb_load_obsolete_counts(vd);
5926
5927 /*
5928 * Normally, indirect vdevs don't have any
5929 * metaslabs. We want to set them up for
5930 * zio_claim().
5931 */
5932 vdev_metaslab_group_create(vd);
5933 VERIFY0(vdev_metaslab_init(vd, 0));
5934
5935 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
5936 uint64_t vim_idx = 0;
5937 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
5938
5939 (void) fprintf(stderr,
5940 "\rloading indirect vdev %llu, "
5941 "metaslab %llu of %llu ...",
5942 (longlong_t)vd->vdev_id,
5943 (longlong_t)vd->vdev_ms[m]->ms_id,
5944 (longlong_t)vd->vdev_ms_count);
5945
5946 load_indirect_ms_allocatable_tree(vd, vd->vdev_ms[m],
5947 &vim_idx);
5948 }
5949 ASSERT3U(vim_idx, ==, vdev_indirect_mapping_num_entries(vim));
5950 }
5951 }
5952
5953 static void
5954 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
5955 {
5956 zcb->zcb_spa = spa;
5957
5958 if (dump_opt['L'])
5959 return;
5960
5961 dsl_pool_t *dp = spa->spa_dsl_pool;
5962 vdev_t *rvd = spa->spa_root_vdev;
5963
5964 /*
5965 * We are going to be changing the meaning of the metaslab's
5966 * ms_allocatable. Ensure that the allocator doesn't try to
5967 * use the tree.
5968 */
5969 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops;
5970 spa->spa_log_class->mc_ops = &zdb_metaslab_ops;
5971 spa->spa_embedded_log_class->mc_ops = &zdb_metaslab_ops;
5972
5973 zcb->zcb_vd_obsolete_counts =
5974 umem_zalloc(rvd->vdev_children * sizeof (uint32_t *),
5975 UMEM_NOFAIL);
5976
5977 /*
5978 * For leak detection, we overload the ms_allocatable trees
5979 * to contain allocated segments instead of free segments.
5980 * As a result, we can't use the normal metaslab_load/unload
5981 * interfaces.
5982 */
5983 zdb_leak_init_prepare_indirect_vdevs(spa, zcb);
5984 load_concrete_ms_allocatable_trees(spa, SM_ALLOC);
5985
5986 /*
5987 * On load_concrete_ms_allocatable_trees() we loaded all the
5988 * allocated entries from the ms_sm to the ms_allocatable for
5989 * each metaslab. If the pool has a checkpoint or is in the
5990 * middle of discarding a checkpoint, some of these blocks
5991 * may have been freed but their ms_sm may not have been
5992 * updated because they are referenced by the checkpoint. In
5993 * order to avoid false-positives during leak-detection, we
5994 * go through the vdev's checkpoint space map and exclude all
5995 * its entries from their relevant ms_allocatable.
5996 *
5997 * We also aggregate the space held by the checkpoint and add
5998 * it to zcb_checkpoint_size.
5999 *
6000 * Note that at this point we are also verifying that all the
6001 * entries on the checkpoint_sm are marked as allocated in
6002 * the ms_sm of their relevant metaslab.
6003 * [see comment in checkpoint_sm_exclude_entry_cb()]
6004 */
6005 zdb_leak_init_exclude_checkpoint(spa, zcb);
6006 ASSERT3U(zcb->zcb_checkpoint_size, ==, spa_get_checkpoint_space(spa));
6007
6008 /* for cleaner progress output */
6009 (void) fprintf(stderr, "\n");
6010
6011 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) {
6012 ASSERT(spa_feature_is_enabled(spa,
6013 SPA_FEATURE_DEVICE_REMOVAL));
6014 (void) bpobj_iterate_nofree(&dp->dp_obsolete_bpobj,
6015 increment_indirect_mapping_cb, zcb, NULL);
6016 }
6017
6018 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
6019 zdb_ddt_leak_init(spa, zcb);
6020 spa_config_exit(spa, SCL_CONFIG, FTAG);
6021 }
6022
6023 static boolean_t
6024 zdb_check_for_obsolete_leaks(vdev_t *vd, zdb_cb_t *zcb)
6025 {
6026 boolean_t leaks = B_FALSE;
6027 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
6028 uint64_t total_leaked = 0;
6029 boolean_t are_precise = B_FALSE;
6030
6031 ASSERT(vim != NULL);
6032
6033 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) {
6034 vdev_indirect_mapping_entry_phys_t *vimep =
6035 &vim->vim_entries[i];
6036 uint64_t obsolete_bytes = 0;
6037 uint64_t offset = DVA_MAPPING_GET_SRC_OFFSET(vimep);
6038 metaslab_t *msp = vd->vdev_ms[offset >> vd->vdev_ms_shift];
6039
6040 /*
6041 * This is not very efficient but it's easy to
6042 * verify correctness.
6043 */
6044 for (uint64_t inner_offset = 0;
6045 inner_offset < DVA_GET_ASIZE(&vimep->vimep_dst);
6046 inner_offset += 1 << vd->vdev_ashift) {
6047 if (range_tree_contains(msp->ms_allocatable,
6048 offset + inner_offset, 1 << vd->vdev_ashift)) {
6049 obsolete_bytes += 1 << vd->vdev_ashift;
6050 }
6051 }
6052
6053 int64_t bytes_leaked = obsolete_bytes -
6054 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i];
6055 ASSERT3U(DVA_GET_ASIZE(&vimep->vimep_dst), >=,
6056 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]);
6057
6058 VERIFY0(vdev_obsolete_counts_are_precise(vd, &are_precise));
6059 if (bytes_leaked != 0 && (are_precise || dump_opt['d'] >= 5)) {
6060 (void) printf("obsolete indirect mapping count "
6061 "mismatch on %llu:%llx:%llx : %llx bytes leaked\n",
6062 (u_longlong_t)vd->vdev_id,
6063 (u_longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep),
6064 (u_longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst),
6065 (u_longlong_t)bytes_leaked);
6066 }
6067 total_leaked += ABS(bytes_leaked);
6068 }
6069
6070 VERIFY0(vdev_obsolete_counts_are_precise(vd, &are_precise));
6071 if (!are_precise && total_leaked > 0) {
6072 int pct_leaked = total_leaked * 100 /
6073 vdev_indirect_mapping_bytes_mapped(vim);
6074 (void) printf("cannot verify obsolete indirect mapping "
6075 "counts of vdev %llu because precise feature was not "
6076 "enabled when it was removed: %d%% (%llx bytes) of mapping"
6077 "unreferenced\n",
6078 (u_longlong_t)vd->vdev_id, pct_leaked,
6079 (u_longlong_t)total_leaked);
6080 } else if (total_leaked > 0) {
6081 (void) printf("obsolete indirect mapping count mismatch "
6082 "for vdev %llu -- %llx total bytes mismatched\n",
6083 (u_longlong_t)vd->vdev_id,
6084 (u_longlong_t)total_leaked);
6085 leaks |= B_TRUE;
6086 }
6087
6088 vdev_indirect_mapping_free_obsolete_counts(vim,
6089 zcb->zcb_vd_obsolete_counts[vd->vdev_id]);
6090 zcb->zcb_vd_obsolete_counts[vd->vdev_id] = NULL;
6091
6092 return (leaks);
6093 }
6094
6095 static boolean_t
6096 zdb_leak_fini(spa_t *spa, zdb_cb_t *zcb)
6097 {
6098 if (dump_opt['L'])
6099 return (B_FALSE);
6100
6101 boolean_t leaks = B_FALSE;
6102 vdev_t *rvd = spa->spa_root_vdev;
6103 for (unsigned c = 0; c < rvd->vdev_children; c++) {
6104 vdev_t *vd = rvd->vdev_child[c];
6105
6106 if (zcb->zcb_vd_obsolete_counts[c] != NULL) {
6107 leaks |= zdb_check_for_obsolete_leaks(vd, zcb);
6108 }
6109
6110 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
6111 metaslab_t *msp = vd->vdev_ms[m];
6112 ASSERT3P(msp->ms_group, ==, (msp->ms_group->mg_class ==
6113 spa_embedded_log_class(spa)) ?
6114 vd->vdev_log_mg : vd->vdev_mg);
6115
6116 /*
6117 * ms_allocatable has been overloaded
6118 * to contain allocated segments. Now that
6119 * we finished traversing all blocks, any
6120 * block that remains in the ms_allocatable
6121 * represents an allocated block that we
6122 * did not claim during the traversal.
6123 * Claimed blocks would have been removed
6124 * from the ms_allocatable. For indirect
6125 * vdevs, space remaining in the tree
6126 * represents parts of the mapping that are
6127 * not referenced, which is not a bug.
6128 */
6129 if (vd->vdev_ops == &vdev_indirect_ops) {
6130 range_tree_vacate(msp->ms_allocatable,
6131 NULL, NULL);
6132 } else {
6133 range_tree_vacate(msp->ms_allocatable,
6134 zdb_leak, vd);
6135 }
6136 if (msp->ms_loaded) {
6137 msp->ms_loaded = B_FALSE;
6138 }
6139 }
6140 }
6141
6142 umem_free(zcb->zcb_vd_obsolete_counts,
6143 rvd->vdev_children * sizeof (uint32_t *));
6144 zcb->zcb_vd_obsolete_counts = NULL;
6145
6146 return (leaks);
6147 }
6148
6149 /* ARGSUSED */
6150 static int
6151 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
6152 {
6153 zdb_cb_t *zcb = arg;
6154
6155 if (dump_opt['b'] >= 5) {
6156 char blkbuf[BP_SPRINTF_LEN];
6157 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
6158 (void) printf("[%s] %s\n",
6159 "deferred free", blkbuf);
6160 }
6161 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
6162 return (0);
6163 }
6164
6165 /*
6166 * Iterate over livelists which have been destroyed by the user but
6167 * are still present in the MOS, waiting to be freed
6168 */
6169 static void
6170 iterate_deleted_livelists(spa_t *spa, ll_iter_t func, void *arg)
6171 {
6172 objset_t *mos = spa->spa_meta_objset;
6173 uint64_t zap_obj;
6174 int err = zap_lookup(mos, DMU_POOL_DIRECTORY_OBJECT,
6175 DMU_POOL_DELETED_CLONES, sizeof (uint64_t), 1, &zap_obj);
6176 if (err == ENOENT)
6177 return;
6178 ASSERT0(err);
6179
6180 zap_cursor_t zc;
6181 zap_attribute_t attr;
6182 dsl_deadlist_t ll;
6183 /* NULL out os prior to dsl_deadlist_open in case it's garbage */
6184 ll.dl_os = NULL;
6185 for (zap_cursor_init(&zc, mos, zap_obj);
6186 zap_cursor_retrieve(&zc, &attr) == 0;
6187 (void) zap_cursor_advance(&zc)) {
6188 dsl_deadlist_open(&ll, mos, attr.za_first_integer);
6189 func(&ll, arg);
6190 dsl_deadlist_close(&ll);
6191 }
6192 zap_cursor_fini(&zc);
6193 }
6194
6195 static int
6196 bpobj_count_block_cb(void *arg, const blkptr_t *bp, boolean_t bp_freed,
6197 dmu_tx_t *tx)
6198 {
6199 ASSERT(!bp_freed);
6200 return (count_block_cb(arg, bp, tx));
6201 }
6202
6203 static int
6204 livelist_entry_count_blocks_cb(void *args, dsl_deadlist_entry_t *dle)
6205 {
6206 zdb_cb_t *zbc = args;
6207 bplist_t blks;
6208 bplist_create(&blks);
6209 /* determine which blocks have been alloc'd but not freed */
6210 VERIFY0(dsl_process_sub_livelist(&dle->dle_bpobj, &blks, NULL, NULL));
6211 /* count those blocks */
6212 (void) bplist_iterate(&blks, count_block_cb, zbc, NULL);
6213 bplist_destroy(&blks);
6214 return (0);
6215 }
6216
6217 static void
6218 livelist_count_blocks(dsl_deadlist_t *ll, void *arg)
6219 {
6220 dsl_deadlist_iterate(ll, livelist_entry_count_blocks_cb, arg);
6221 }
6222
6223 /*
6224 * Count the blocks in the livelists that have been destroyed by the user
6225 * but haven't yet been freed.
6226 */
6227 static void
6228 deleted_livelists_count_blocks(spa_t *spa, zdb_cb_t *zbc)
6229 {
6230 iterate_deleted_livelists(spa, livelist_count_blocks, zbc);
6231 }
6232
6233 static void
6234 dump_livelist_cb(dsl_deadlist_t *ll, void *arg)
6235 {
6236 ASSERT3P(arg, ==, NULL);
6237 global_feature_count[SPA_FEATURE_LIVELIST]++;
6238 dump_blkptr_list(ll, "Deleted Livelist");
6239 dsl_deadlist_iterate(ll, sublivelist_verify_lightweight, NULL);
6240 }
6241
6242 /*
6243 * Print out, register object references to, and increment feature counts for
6244 * livelists that have been destroyed by the user but haven't yet been freed.
6245 */
6246 static void
6247 deleted_livelists_dump_mos(spa_t *spa)
6248 {
6249 uint64_t zap_obj;
6250 objset_t *mos = spa->spa_meta_objset;
6251 int err = zap_lookup(mos, DMU_POOL_DIRECTORY_OBJECT,
6252 DMU_POOL_DELETED_CLONES, sizeof (uint64_t), 1, &zap_obj);
6253 if (err == ENOENT)
6254 return;
6255 mos_obj_refd(zap_obj);
6256 iterate_deleted_livelists(spa, dump_livelist_cb, NULL);
6257 }
6258
6259 static int
6260 dump_block_stats(spa_t *spa)
6261 {
6262 zdb_cb_t zcb;
6263 zdb_blkstats_t *zb, *tzb;
6264 uint64_t norm_alloc, norm_space, total_alloc, total_found;
6265 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA |
6266 TRAVERSE_NO_DECRYPT | TRAVERSE_HARD;
6267 boolean_t leaks = B_FALSE;
6268 int e, c, err;
6269 bp_embedded_type_t i;
6270
6271 bzero(&zcb, sizeof (zcb));
6272 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
6273 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
6274 (dump_opt['c'] == 1) ? "metadata " : "",
6275 dump_opt['c'] ? "checksums " : "",
6276 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
6277 !dump_opt['L'] ? "nothing leaked " : "");
6278
6279 /*
6280 * When leak detection is enabled we load all space maps as SM_ALLOC
6281 * maps, then traverse the pool claiming each block we discover. If
6282 * the pool is perfectly consistent, the segment trees will be empty
6283 * when we're done. Anything left over is a leak; any block we can't
6284 * claim (because it's not part of any space map) is a double
6285 * allocation, reference to a freed block, or an unclaimed log block.
6286 *
6287 * When leak detection is disabled (-L option) we still traverse the
6288 * pool claiming each block we discover, but we skip opening any space
6289 * maps.
6290 */
6291 bzero(&zcb, sizeof (zdb_cb_t));
6292 zdb_leak_init(spa, &zcb);
6293
6294 /*
6295 * If there's a deferred-free bplist, process that first.
6296 */
6297 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
6298 bpobj_count_block_cb, &zcb, NULL);
6299
6300 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
6301 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
6302 bpobj_count_block_cb, &zcb, NULL);
6303 }
6304
6305 zdb_claim_removing(spa, &zcb);
6306
6307 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
6308 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
6309 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
6310 &zcb, NULL));
6311 }
6312
6313 deleted_livelists_count_blocks(spa, &zcb);
6314
6315 if (dump_opt['c'] > 1)
6316 flags |= TRAVERSE_PREFETCH_DATA;
6317
6318 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
6319 zcb.zcb_totalasize += metaslab_class_get_alloc(spa_special_class(spa));
6320 zcb.zcb_totalasize += metaslab_class_get_alloc(spa_dedup_class(spa));
6321 zcb.zcb_totalasize +=
6322 metaslab_class_get_alloc(spa_embedded_log_class(spa));
6323 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
6324 err = traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
6325
6326 /*
6327 * If we've traversed the data blocks then we need to wait for those
6328 * I/Os to complete. We leverage "The Godfather" zio to wait on
6329 * all async I/Os to complete.
6330 */
6331 if (dump_opt['c']) {
6332 for (c = 0; c < max_ncpus; c++) {
6333 (void) zio_wait(spa->spa_async_zio_root[c]);
6334 spa->spa_async_zio_root[c] = zio_root(spa, NULL, NULL,
6335 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
6336 ZIO_FLAG_GODFATHER);
6337 }
6338 }
6339 ASSERT0(spa->spa_load_verify_bytes);
6340
6341 /*
6342 * Done after zio_wait() since zcb_haderrors is modified in
6343 * zdb_blkptr_done()
6344 */
6345 zcb.zcb_haderrors |= err;
6346
6347 if (zcb.zcb_haderrors) {
6348 (void) printf("\nError counts:\n\n");
6349 (void) printf("\t%5s %s\n", "errno", "count");
6350 for (e = 0; e < 256; e++) {
6351 if (zcb.zcb_errors[e] != 0) {
6352 (void) printf("\t%5d %llu\n",
6353 e, (u_longlong_t)zcb.zcb_errors[e]);
6354 }
6355 }
6356 }
6357
6358 /*
6359 * Report any leaked segments.
6360 */
6361 leaks |= zdb_leak_fini(spa, &zcb);
6362
6363 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
6364
6365 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
6366 norm_space = metaslab_class_get_space(spa_normal_class(spa));
6367
6368 total_alloc = norm_alloc +
6369 metaslab_class_get_alloc(spa_log_class(spa)) +
6370 metaslab_class_get_alloc(spa_embedded_log_class(spa)) +
6371 metaslab_class_get_alloc(spa_special_class(spa)) +
6372 metaslab_class_get_alloc(spa_dedup_class(spa)) +
6373 get_unflushed_alloc_space(spa);
6374 total_found = tzb->zb_asize - zcb.zcb_dedup_asize +
6375 zcb.zcb_removing_size + zcb.zcb_checkpoint_size;
6376
6377 if (total_found == total_alloc && !dump_opt['L']) {
6378 (void) printf("\n\tNo leaks (block sum matches space"
6379 " maps exactly)\n");
6380 } else if (!dump_opt['L']) {
6381 (void) printf("block traversal size %llu != alloc %llu "
6382 "(%s %lld)\n",
6383 (u_longlong_t)total_found,
6384 (u_longlong_t)total_alloc,
6385 (dump_opt['L']) ? "unreachable" : "leaked",
6386 (longlong_t)(total_alloc - total_found));
6387 leaks = B_TRUE;
6388 }
6389
6390 if (tzb->zb_count == 0)
6391 return (2);
6392
6393 (void) printf("\n");
6394 (void) printf("\t%-16s %14llu\n", "bp count:",
6395 (u_longlong_t)tzb->zb_count);
6396 (void) printf("\t%-16s %14llu\n", "ganged count:",
6397 (longlong_t)tzb->zb_gangs);
6398 (void) printf("\t%-16s %14llu avg: %6llu\n", "bp logical:",
6399 (u_longlong_t)tzb->zb_lsize,
6400 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
6401 (void) printf("\t%-16s %14llu avg: %6llu compression: %6.2f\n",
6402 "bp physical:", (u_longlong_t)tzb->zb_psize,
6403 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
6404 (double)tzb->zb_lsize / tzb->zb_psize);
6405 (void) printf("\t%-16s %14llu avg: %6llu compression: %6.2f\n",
6406 "bp allocated:", (u_longlong_t)tzb->zb_asize,
6407 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
6408 (double)tzb->zb_lsize / tzb->zb_asize);
6409 (void) printf("\t%-16s %14llu ref>1: %6llu deduplication: %6.2f\n",
6410 "bp deduped:", (u_longlong_t)zcb.zcb_dedup_asize,
6411 (u_longlong_t)zcb.zcb_dedup_blocks,
6412 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
6413 (void) printf("\t%-16s %14llu used: %5.2f%%\n", "Normal class:",
6414 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
6415
6416 if (spa_special_class(spa)->mc_allocator[0].mca_rotor != NULL) {
6417 uint64_t alloc = metaslab_class_get_alloc(
6418 spa_special_class(spa));
6419 uint64_t space = metaslab_class_get_space(
6420 spa_special_class(spa));
6421
6422 (void) printf("\t%-16s %14llu used: %5.2f%%\n",
6423 "Special class", (u_longlong_t)alloc,
6424 100.0 * alloc / space);
6425 }
6426
6427 if (spa_dedup_class(spa)->mc_allocator[0].mca_rotor != NULL) {
6428 uint64_t alloc = metaslab_class_get_alloc(
6429 spa_dedup_class(spa));
6430 uint64_t space = metaslab_class_get_space(
6431 spa_dedup_class(spa));
6432
6433 (void) printf("\t%-16s %14llu used: %5.2f%%\n",
6434 "Dedup class", (u_longlong_t)alloc,
6435 100.0 * alloc / space);
6436 }
6437
6438 if (spa_embedded_log_class(spa)->mc_allocator[0].mca_rotor != NULL) {
6439 uint64_t alloc = metaslab_class_get_alloc(
6440 spa_embedded_log_class(spa));
6441 uint64_t space = metaslab_class_get_space(
6442 spa_embedded_log_class(spa));
6443
6444 (void) printf("\t%-16s %14llu used: %5.2f%%\n",
6445 "Embedded log class", (u_longlong_t)alloc,
6446 100.0 * alloc / space);
6447 }
6448
6449 for (i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
6450 if (zcb.zcb_embedded_blocks[i] == 0)
6451 continue;
6452 (void) printf("\n");
6453 (void) printf("\tadditional, non-pointer bps of type %u: "
6454 "%10llu\n",
6455 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
6456
6457 if (dump_opt['b'] >= 3) {
6458 (void) printf("\t number of (compressed) bytes: "
6459 "number of bps\n");
6460 dump_histogram(zcb.zcb_embedded_histogram[i],
6461 sizeof (zcb.zcb_embedded_histogram[i]) /
6462 sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
6463 }
6464 }
6465
6466 if (tzb->zb_ditto_samevdev != 0) {
6467 (void) printf("\tDittoed blocks on same vdev: %llu\n",
6468 (longlong_t)tzb->zb_ditto_samevdev);
6469 }
6470 if (tzb->zb_ditto_same_ms != 0) {
6471 (void) printf("\tDittoed blocks in same metaslab: %llu\n",
6472 (longlong_t)tzb->zb_ditto_same_ms);
6473 }
6474
6475 for (uint64_t v = 0; v < spa->spa_root_vdev->vdev_children; v++) {
6476 vdev_t *vd = spa->spa_root_vdev->vdev_child[v];
6477 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
6478
6479 if (vim == NULL) {
6480 continue;
6481 }
6482
6483 char mem[32];
6484 zdb_nicenum(vdev_indirect_mapping_num_entries(vim),
6485 mem, vdev_indirect_mapping_size(vim));
6486
6487 (void) printf("\tindirect vdev id %llu has %llu segments "
6488 "(%s in memory)\n",
6489 (longlong_t)vd->vdev_id,
6490 (longlong_t)vdev_indirect_mapping_num_entries(vim), mem);
6491 }
6492
6493 if (dump_opt['b'] >= 2) {
6494 int l, t, level;
6495 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
6496 "\t avg\t comp\t%%Total\tType\n");
6497
6498 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
6499 char csize[32], lsize[32], psize[32], asize[32];
6500 char avg[32], gang[32];
6501 const char *typename;
6502
6503 /* make sure nicenum has enough space */
6504 CTASSERT(sizeof (csize) >= NN_NUMBUF_SZ);
6505 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ);
6506 CTASSERT(sizeof (psize) >= NN_NUMBUF_SZ);
6507 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ);
6508 CTASSERT(sizeof (avg) >= NN_NUMBUF_SZ);
6509 CTASSERT(sizeof (gang) >= NN_NUMBUF_SZ);
6510
6511 if (t < DMU_OT_NUMTYPES)
6512 typename = dmu_ot[t].ot_name;
6513 else
6514 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
6515
6516 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
6517 (void) printf("%6s\t%5s\t%5s\t%5s"
6518 "\t%5s\t%5s\t%6s\t%s\n",
6519 "-",
6520 "-",
6521 "-",
6522 "-",
6523 "-",
6524 "-",
6525 "-",
6526 typename);
6527 continue;
6528 }
6529
6530 for (l = ZB_TOTAL - 1; l >= -1; l--) {
6531 level = (l == -1 ? ZB_TOTAL : l);
6532 zb = &zcb.zcb_type[level][t];
6533
6534 if (zb->zb_asize == 0)
6535 continue;
6536
6537 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
6538 continue;
6539
6540 if (level == 0 && zb->zb_asize ==
6541 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
6542 continue;
6543
6544 zdb_nicenum(zb->zb_count, csize,
6545 sizeof (csize));
6546 zdb_nicenum(zb->zb_lsize, lsize,
6547 sizeof (lsize));
6548 zdb_nicenum(zb->zb_psize, psize,
6549 sizeof (psize));
6550 zdb_nicenum(zb->zb_asize, asize,
6551 sizeof (asize));
6552 zdb_nicenum(zb->zb_asize / zb->zb_count, avg,
6553 sizeof (avg));
6554 zdb_nicenum(zb->zb_gangs, gang, sizeof (gang));
6555
6556 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
6557 "\t%5.2f\t%6.2f\t",
6558 csize, lsize, psize, asize, avg,
6559 (double)zb->zb_lsize / zb->zb_psize,
6560 100.0 * zb->zb_asize / tzb->zb_asize);
6561
6562 if (level == ZB_TOTAL)
6563 (void) printf("%s\n", typename);
6564 else
6565 (void) printf(" L%d %s\n",
6566 level, typename);
6567
6568 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
6569 (void) printf("\t number of ganged "
6570 "blocks: %s\n", gang);
6571 }
6572
6573 if (dump_opt['b'] >= 4) {
6574 (void) printf("psize "
6575 "(in 512-byte sectors): "
6576 "number of blocks\n");
6577 dump_histogram(zb->zb_psize_histogram,
6578 PSIZE_HISTO_SIZE, 0);
6579 }
6580 }
6581 }
6582
6583 /* Output a table summarizing block sizes in the pool */
6584 if (dump_opt['b'] >= 2) {
6585 dump_size_histograms(&zcb);
6586 }
6587 }
6588
6589 (void) printf("\n");
6590
6591 if (leaks)
6592 return (2);
6593
6594 if (zcb.zcb_haderrors)
6595 return (3);
6596
6597 return (0);
6598 }
6599
6600 typedef struct zdb_ddt_entry {
6601 ddt_key_t zdde_key;
6602 uint64_t zdde_ref_blocks;
6603 uint64_t zdde_ref_lsize;
6604 uint64_t zdde_ref_psize;
6605 uint64_t zdde_ref_dsize;
6606 avl_node_t zdde_node;
6607 } zdb_ddt_entry_t;
6608
6609 /* ARGSUSED */
6610 static int
6611 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
6612 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
6613 {
6614 avl_tree_t *t = arg;
6615 avl_index_t where;
6616 zdb_ddt_entry_t *zdde, zdde_search;
6617
6618 if (zb->zb_level == ZB_DNODE_LEVEL || BP_IS_HOLE(bp) ||
6619 BP_IS_EMBEDDED(bp))
6620 return (0);
6621
6622 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
6623 (void) printf("traversing objset %llu, %llu objects, "
6624 "%lu blocks so far\n",
6625 (u_longlong_t)zb->zb_objset,
6626 (u_longlong_t)BP_GET_FILL(bp),
6627 avl_numnodes(t));
6628 }
6629
6630 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
6631 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
6632 return (0);
6633
6634 ddt_key_fill(&zdde_search.zdde_key, bp);
6635
6636 zdde = avl_find(t, &zdde_search, &where);
6637
6638 if (zdde == NULL) {
6639 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
6640 zdde->zdde_key = zdde_search.zdde_key;
6641 avl_insert(t, zdde, where);
6642 }
6643
6644 zdde->zdde_ref_blocks += 1;
6645 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
6646 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
6647 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
6648
6649 return (0);
6650 }
6651
6652 static void
6653 dump_simulated_ddt(spa_t *spa)
6654 {
6655 avl_tree_t t;
6656 void *cookie = NULL;
6657 zdb_ddt_entry_t *zdde;
6658 ddt_histogram_t ddh_total;
6659 ddt_stat_t dds_total;
6660
6661 bzero(&ddh_total, sizeof (ddh_total));
6662 bzero(&dds_total, sizeof (dds_total));
6663 avl_create(&t, ddt_entry_compare,
6664 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
6665
6666 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
6667
6668 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA |
6669 TRAVERSE_NO_DECRYPT, zdb_ddt_add_cb, &t);
6670
6671 spa_config_exit(spa, SCL_CONFIG, FTAG);
6672
6673 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
6674 ddt_stat_t dds;
6675 uint64_t refcnt = zdde->zdde_ref_blocks;
6676 ASSERT(refcnt != 0);
6677
6678 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
6679 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
6680 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
6681 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
6682
6683 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
6684 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
6685 dds.dds_ref_psize = zdde->zdde_ref_psize;
6686 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
6687
6688 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
6689 &dds, 0);
6690
6691 umem_free(zdde, sizeof (*zdde));
6692 }
6693
6694 avl_destroy(&t);
6695
6696 ddt_histogram_stat(&dds_total, &ddh_total);
6697
6698 (void) printf("Simulated DDT histogram:\n");
6699
6700 zpool_dump_ddt(&dds_total, &ddh_total);
6701
6702 dump_dedup_ratio(&dds_total);
6703 }
6704
6705 static int
6706 verify_device_removal_feature_counts(spa_t *spa)
6707 {
6708 uint64_t dr_feature_refcount = 0;
6709 uint64_t oc_feature_refcount = 0;
6710 uint64_t indirect_vdev_count = 0;
6711 uint64_t precise_vdev_count = 0;
6712 uint64_t obsolete_counts_object_count = 0;
6713 uint64_t obsolete_sm_count = 0;
6714 uint64_t obsolete_counts_count = 0;
6715 uint64_t scip_count = 0;
6716 uint64_t obsolete_bpobj_count = 0;
6717 int ret = 0;
6718
6719 spa_condensing_indirect_phys_t *scip =
6720 &spa->spa_condensing_indirect_phys;
6721 if (scip->scip_next_mapping_object != 0) {
6722 vdev_t *vd = spa->spa_root_vdev->vdev_child[scip->scip_vdev];
6723 ASSERT(scip->scip_prev_obsolete_sm_object != 0);
6724 ASSERT3P(vd->vdev_ops, ==, &vdev_indirect_ops);
6725
6726 (void) printf("Condensing indirect vdev %llu: new mapping "
6727 "object %llu, prev obsolete sm %llu\n",
6728 (u_longlong_t)scip->scip_vdev,
6729 (u_longlong_t)scip->scip_next_mapping_object,
6730 (u_longlong_t)scip->scip_prev_obsolete_sm_object);
6731 if (scip->scip_prev_obsolete_sm_object != 0) {
6732 space_map_t *prev_obsolete_sm = NULL;
6733 VERIFY0(space_map_open(&prev_obsolete_sm,
6734 spa->spa_meta_objset,
6735 scip->scip_prev_obsolete_sm_object,
6736 0, vd->vdev_asize, 0));
6737 dump_spacemap(spa->spa_meta_objset, prev_obsolete_sm);
6738 (void) printf("\n");
6739 space_map_close(prev_obsolete_sm);
6740 }
6741
6742 scip_count += 2;
6743 }
6744
6745 for (uint64_t i = 0; i < spa->spa_root_vdev->vdev_children; i++) {
6746 vdev_t *vd = spa->spa_root_vdev->vdev_child[i];
6747 vdev_indirect_config_t *vic = &vd->vdev_indirect_config;
6748
6749 if (vic->vic_mapping_object != 0) {
6750 ASSERT(vd->vdev_ops == &vdev_indirect_ops ||
6751 vd->vdev_removing);
6752 indirect_vdev_count++;
6753
6754 if (vd->vdev_indirect_mapping->vim_havecounts) {
6755 obsolete_counts_count++;
6756 }
6757 }
6758
6759 boolean_t are_precise;
6760 VERIFY0(vdev_obsolete_counts_are_precise(vd, &are_precise));
6761 if (are_precise) {
6762 ASSERT(vic->vic_mapping_object != 0);
6763 precise_vdev_count++;
6764 }
6765
6766 uint64_t obsolete_sm_object;
6767 VERIFY0(vdev_obsolete_sm_object(vd, &obsolete_sm_object));
6768 if (obsolete_sm_object != 0) {
6769 ASSERT(vic->vic_mapping_object != 0);
6770 obsolete_sm_count++;
6771 }
6772 }
6773
6774 (void) feature_get_refcount(spa,
6775 &spa_feature_table[SPA_FEATURE_DEVICE_REMOVAL],
6776 &dr_feature_refcount);
6777 (void) feature_get_refcount(spa,
6778 &spa_feature_table[SPA_FEATURE_OBSOLETE_COUNTS],
6779 &oc_feature_refcount);
6780
6781 if (dr_feature_refcount != indirect_vdev_count) {
6782 ret = 1;
6783 (void) printf("Number of indirect vdevs (%llu) " \
6784 "does not match feature count (%llu)\n",
6785 (u_longlong_t)indirect_vdev_count,
6786 (u_longlong_t)dr_feature_refcount);
6787 } else {
6788 (void) printf("Verified device_removal feature refcount " \
6789 "of %llu is correct\n",
6790 (u_longlong_t)dr_feature_refcount);
6791 }
6792
6793 if (zap_contains(spa_meta_objset(spa), DMU_POOL_DIRECTORY_OBJECT,
6794 DMU_POOL_OBSOLETE_BPOBJ) == 0) {
6795 obsolete_bpobj_count++;
6796 }
6797
6798
6799 obsolete_counts_object_count = precise_vdev_count;
6800 obsolete_counts_object_count += obsolete_sm_count;
6801 obsolete_counts_object_count += obsolete_counts_count;
6802 obsolete_counts_object_count += scip_count;
6803 obsolete_counts_object_count += obsolete_bpobj_count;
6804 obsolete_counts_object_count += remap_deadlist_count;
6805
6806 if (oc_feature_refcount != obsolete_counts_object_count) {
6807 ret = 1;
6808 (void) printf("Number of obsolete counts objects (%llu) " \
6809 "does not match feature count (%llu)\n",
6810 (u_longlong_t)obsolete_counts_object_count,
6811 (u_longlong_t)oc_feature_refcount);
6812 (void) printf("pv:%llu os:%llu oc:%llu sc:%llu "
6813 "ob:%llu rd:%llu\n",
6814 (u_longlong_t)precise_vdev_count,
6815 (u_longlong_t)obsolete_sm_count,
6816 (u_longlong_t)obsolete_counts_count,
6817 (u_longlong_t)scip_count,
6818 (u_longlong_t)obsolete_bpobj_count,
6819 (u_longlong_t)remap_deadlist_count);
6820 } else {
6821 (void) printf("Verified indirect_refcount feature refcount " \
6822 "of %llu is correct\n",
6823 (u_longlong_t)oc_feature_refcount);
6824 }
6825 return (ret);
6826 }
6827
6828 static void
6829 zdb_set_skip_mmp(char *target)
6830 {
6831 spa_t *spa;
6832
6833 /*
6834 * Disable the activity check to allow examination of
6835 * active pools.
6836 */
6837 mutex_enter(&spa_namespace_lock);
6838 if ((spa = spa_lookup(target)) != NULL) {
6839 spa->spa_import_flags |= ZFS_IMPORT_SKIP_MMP;
6840 }
6841 mutex_exit(&spa_namespace_lock);
6842 }
6843
6844 #define BOGUS_SUFFIX "_CHECKPOINTED_UNIVERSE"
6845 /*
6846 * Import the checkpointed state of the pool specified by the target
6847 * parameter as readonly. The function also accepts a pool config
6848 * as an optional parameter, else it attempts to infer the config by
6849 * the name of the target pool.
6850 *
6851 * Note that the checkpointed state's pool name will be the name of
6852 * the original pool with the above suffix appended to it. In addition,
6853 * if the target is not a pool name (e.g. a path to a dataset) then
6854 * the new_path parameter is populated with the updated path to
6855 * reflect the fact that we are looking into the checkpointed state.
6856 *
6857 * The function returns a newly-allocated copy of the name of the
6858 * pool containing the checkpointed state. When this copy is no
6859 * longer needed it should be freed with free(3C). Same thing
6860 * applies to the new_path parameter if allocated.
6861 */
6862 static char *
6863 import_checkpointed_state(char *target, nvlist_t *cfg, char **new_path)
6864 {
6865 int error = 0;
6866 char *poolname, *bogus_name = NULL;
6867 boolean_t freecfg = B_FALSE;
6868
6869 /* If the target is not a pool, the extract the pool name */
6870 char *path_start = strchr(target, '/');
6871 if (path_start != NULL) {
6872 size_t poolname_len = path_start - target;
6873 poolname = strndup(target, poolname_len);
6874 } else {
6875 poolname = target;
6876 }
6877
6878 if (cfg == NULL) {
6879 zdb_set_skip_mmp(poolname);
6880 error = spa_get_stats(poolname, &cfg, NULL, 0);
6881 if (error != 0) {
6882 fatal("Tried to read config of pool \"%s\" but "
6883 "spa_get_stats() failed with error %d\n",
6884 poolname, error);
6885 }
6886 freecfg = B_TRUE;
6887 }
6888
6889 if (asprintf(&bogus_name, "%s%s", poolname, BOGUS_SUFFIX) == -1)
6890 return (NULL);
6891 fnvlist_add_string(cfg, ZPOOL_CONFIG_POOL_NAME, bogus_name);
6892
6893 error = spa_import(bogus_name, cfg, NULL,
6894 ZFS_IMPORT_MISSING_LOG | ZFS_IMPORT_CHECKPOINT |
6895 ZFS_IMPORT_SKIP_MMP);
6896 if (freecfg)
6897 nvlist_free(cfg);
6898 if (error != 0) {
6899 fatal("Tried to import pool \"%s\" but spa_import() failed "
6900 "with error %d\n", bogus_name, error);
6901 }
6902
6903 if (new_path != NULL && path_start != NULL) {
6904 if (asprintf(new_path, "%s%s", bogus_name, path_start) == -1) {
6905 if (path_start != NULL)
6906 free(poolname);
6907 return (NULL);
6908 }
6909 }
6910
6911 if (target != poolname)
6912 free(poolname);
6913
6914 return (bogus_name);
6915 }
6916
6917 typedef struct verify_checkpoint_sm_entry_cb_arg {
6918 vdev_t *vcsec_vd;
6919
6920 /* the following fields are only used for printing progress */
6921 uint64_t vcsec_entryid;
6922 uint64_t vcsec_num_entries;
6923 } verify_checkpoint_sm_entry_cb_arg_t;
6924
6925 #define ENTRIES_PER_PROGRESS_UPDATE 10000
6926
6927 static int
6928 verify_checkpoint_sm_entry_cb(space_map_entry_t *sme, void *arg)
6929 {
6930 verify_checkpoint_sm_entry_cb_arg_t *vcsec = arg;
6931 vdev_t *vd = vcsec->vcsec_vd;
6932 metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift];
6933 uint64_t end = sme->sme_offset + sme->sme_run;
6934
6935 ASSERT(sme->sme_type == SM_FREE);
6936
6937 if ((vcsec->vcsec_entryid % ENTRIES_PER_PROGRESS_UPDATE) == 0) {
6938 (void) fprintf(stderr,
6939 "\rverifying vdev %llu, space map entry %llu of %llu ...",
6940 (longlong_t)vd->vdev_id,
6941 (longlong_t)vcsec->vcsec_entryid,
6942 (longlong_t)vcsec->vcsec_num_entries);
6943 }
6944 vcsec->vcsec_entryid++;
6945
6946 /*
6947 * See comment in checkpoint_sm_exclude_entry_cb()
6948 */
6949 VERIFY3U(sme->sme_offset, >=, ms->ms_start);
6950 VERIFY3U(end, <=, ms->ms_start + ms->ms_size);
6951
6952 /*
6953 * The entries in the vdev_checkpoint_sm should be marked as
6954 * allocated in the checkpointed state of the pool, therefore
6955 * their respective ms_allocateable trees should not contain them.
6956 */
6957 mutex_enter(&ms->ms_lock);
6958 range_tree_verify_not_present(ms->ms_allocatable,
6959 sme->sme_offset, sme->sme_run);
6960 mutex_exit(&ms->ms_lock);
6961
6962 return (0);
6963 }
6964
6965 /*
6966 * Verify that all segments in the vdev_checkpoint_sm are allocated
6967 * according to the checkpoint's ms_sm (i.e. are not in the checkpoint's
6968 * ms_allocatable).
6969 *
6970 * Do so by comparing the checkpoint space maps (vdev_checkpoint_sm) of
6971 * each vdev in the current state of the pool to the metaslab space maps
6972 * (ms_sm) of the checkpointed state of the pool.
6973 *
6974 * Note that the function changes the state of the ms_allocatable
6975 * trees of the current spa_t. The entries of these ms_allocatable
6976 * trees are cleared out and then repopulated from with the free
6977 * entries of their respective ms_sm space maps.
6978 */
6979 static void
6980 verify_checkpoint_vdev_spacemaps(spa_t *checkpoint, spa_t *current)
6981 {
6982 vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev;
6983 vdev_t *current_rvd = current->spa_root_vdev;
6984
6985 load_concrete_ms_allocatable_trees(checkpoint, SM_FREE);
6986
6987 for (uint64_t c = 0; c < ckpoint_rvd->vdev_children; c++) {
6988 vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[c];
6989 vdev_t *current_vd = current_rvd->vdev_child[c];
6990
6991 space_map_t *checkpoint_sm = NULL;
6992 uint64_t checkpoint_sm_obj;
6993
6994 if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) {
6995 /*
6996 * Since we don't allow device removal in a pool
6997 * that has a checkpoint, we expect that all removed
6998 * vdevs were removed from the pool before the
6999 * checkpoint.
7000 */
7001 ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops);
7002 continue;
7003 }
7004
7005 /*
7006 * If the checkpoint space map doesn't exist, then nothing
7007 * here is checkpointed so there's nothing to verify.
7008 */
7009 if (current_vd->vdev_top_zap == 0 ||
7010 zap_contains(spa_meta_objset(current),
7011 current_vd->vdev_top_zap,
7012 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0)
7013 continue;
7014
7015 VERIFY0(zap_lookup(spa_meta_objset(current),
7016 current_vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM,
7017 sizeof (uint64_t), 1, &checkpoint_sm_obj));
7018
7019 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(current),
7020 checkpoint_sm_obj, 0, current_vd->vdev_asize,
7021 current_vd->vdev_ashift));
7022
7023 verify_checkpoint_sm_entry_cb_arg_t vcsec;
7024 vcsec.vcsec_vd = ckpoint_vd;
7025 vcsec.vcsec_entryid = 0;
7026 vcsec.vcsec_num_entries =
7027 space_map_length(checkpoint_sm) / sizeof (uint64_t);
7028 VERIFY0(space_map_iterate(checkpoint_sm,
7029 space_map_length(checkpoint_sm),
7030 verify_checkpoint_sm_entry_cb, &vcsec));
7031 if (dump_opt['m'] > 3)
7032 dump_spacemap(current->spa_meta_objset, checkpoint_sm);
7033 space_map_close(checkpoint_sm);
7034 }
7035
7036 /*
7037 * If we've added vdevs since we took the checkpoint, ensure
7038 * that their checkpoint space maps are empty.
7039 */
7040 if (ckpoint_rvd->vdev_children < current_rvd->vdev_children) {
7041 for (uint64_t c = ckpoint_rvd->vdev_children;
7042 c < current_rvd->vdev_children; c++) {
7043 vdev_t *current_vd = current_rvd->vdev_child[c];
7044 ASSERT3P(current_vd->vdev_checkpoint_sm, ==, NULL);
7045 }
7046 }
7047
7048 /* for cleaner progress output */
7049 (void) fprintf(stderr, "\n");
7050 }
7051
7052 /*
7053 * Verifies that all space that's allocated in the checkpoint is
7054 * still allocated in the current version, by checking that everything
7055 * in checkpoint's ms_allocatable (which is actually allocated, not
7056 * allocatable/free) is not present in current's ms_allocatable.
7057 *
7058 * Note that the function changes the state of the ms_allocatable
7059 * trees of both spas when called. The entries of all ms_allocatable
7060 * trees are cleared out and then repopulated from their respective
7061 * ms_sm space maps. In the checkpointed state we load the allocated
7062 * entries, and in the current state we load the free entries.
7063 */
7064 static void
7065 verify_checkpoint_ms_spacemaps(spa_t *checkpoint, spa_t *current)
7066 {
7067 vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev;
7068 vdev_t *current_rvd = current->spa_root_vdev;
7069
7070 load_concrete_ms_allocatable_trees(checkpoint, SM_ALLOC);
7071 load_concrete_ms_allocatable_trees(current, SM_FREE);
7072
7073 for (uint64_t i = 0; i < ckpoint_rvd->vdev_children; i++) {
7074 vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[i];
7075 vdev_t *current_vd = current_rvd->vdev_child[i];
7076
7077 if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) {
7078 /*
7079 * See comment in verify_checkpoint_vdev_spacemaps()
7080 */
7081 ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops);
7082 continue;
7083 }
7084
7085 for (uint64_t m = 0; m < ckpoint_vd->vdev_ms_count; m++) {
7086 metaslab_t *ckpoint_msp = ckpoint_vd->vdev_ms[m];
7087 metaslab_t *current_msp = current_vd->vdev_ms[m];
7088
7089 (void) fprintf(stderr,
7090 "\rverifying vdev %llu of %llu, "
7091 "metaslab %llu of %llu ...",
7092 (longlong_t)current_vd->vdev_id,
7093 (longlong_t)current_rvd->vdev_children,
7094 (longlong_t)current_vd->vdev_ms[m]->ms_id,
7095 (longlong_t)current_vd->vdev_ms_count);
7096
7097 /*
7098 * We walk through the ms_allocatable trees that
7099 * are loaded with the allocated blocks from the
7100 * ms_sm spacemaps of the checkpoint. For each
7101 * one of these ranges we ensure that none of them
7102 * exists in the ms_allocatable trees of the
7103 * current state which are loaded with the ranges
7104 * that are currently free.
7105 *
7106 * This way we ensure that none of the blocks that
7107 * are part of the checkpoint were freed by mistake.
7108 */
7109 range_tree_walk(ckpoint_msp->ms_allocatable,
7110 (range_tree_func_t *)range_tree_verify_not_present,
7111 current_msp->ms_allocatable);
7112 }
7113 }
7114
7115 /* for cleaner progress output */
7116 (void) fprintf(stderr, "\n");
7117 }
7118
7119 static void
7120 verify_checkpoint_blocks(spa_t *spa)
7121 {
7122 ASSERT(!dump_opt['L']);
7123
7124 spa_t *checkpoint_spa;
7125 char *checkpoint_pool;
7126 int error = 0;
7127
7128 /*
7129 * We import the checkpointed state of the pool (under a different
7130 * name) so we can do verification on it against the current state
7131 * of the pool.
7132 */
7133 checkpoint_pool = import_checkpointed_state(spa->spa_name, NULL,
7134 NULL);
7135 ASSERT(strcmp(spa->spa_name, checkpoint_pool) != 0);
7136
7137 error = spa_open(checkpoint_pool, &checkpoint_spa, FTAG);
7138 if (error != 0) {
7139 fatal("Tried to open pool \"%s\" but spa_open() failed with "
7140 "error %d\n", checkpoint_pool, error);
7141 }
7142
7143 /*
7144 * Ensure that ranges in the checkpoint space maps of each vdev
7145 * are allocated according to the checkpointed state's metaslab
7146 * space maps.
7147 */
7148 verify_checkpoint_vdev_spacemaps(checkpoint_spa, spa);
7149
7150 /*
7151 * Ensure that allocated ranges in the checkpoint's metaslab
7152 * space maps remain allocated in the metaslab space maps of
7153 * the current state.
7154 */
7155 verify_checkpoint_ms_spacemaps(checkpoint_spa, spa);
7156
7157 /*
7158 * Once we are done, we get rid of the checkpointed state.
7159 */
7160 spa_close(checkpoint_spa, FTAG);
7161 free(checkpoint_pool);
7162 }
7163
7164 static void
7165 dump_leftover_checkpoint_blocks(spa_t *spa)
7166 {
7167 vdev_t *rvd = spa->spa_root_vdev;
7168
7169 for (uint64_t i = 0; i < rvd->vdev_children; i++) {
7170 vdev_t *vd = rvd->vdev_child[i];
7171
7172 space_map_t *checkpoint_sm = NULL;
7173 uint64_t checkpoint_sm_obj;
7174
7175 if (vd->vdev_top_zap == 0)
7176 continue;
7177
7178 if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap,
7179 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0)
7180 continue;
7181
7182 VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap,
7183 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM,
7184 sizeof (uint64_t), 1, &checkpoint_sm_obj));
7185
7186 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa),
7187 checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift));
7188 dump_spacemap(spa->spa_meta_objset, checkpoint_sm);
7189 space_map_close(checkpoint_sm);
7190 }
7191 }
7192
7193 static int
7194 verify_checkpoint(spa_t *spa)
7195 {
7196 uberblock_t checkpoint;
7197 int error;
7198
7199 if (!spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT))
7200 return (0);
7201
7202 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT,
7203 DMU_POOL_ZPOOL_CHECKPOINT, sizeof (uint64_t),
7204 sizeof (uberblock_t) / sizeof (uint64_t), &checkpoint);
7205
7206 if (error == ENOENT && !dump_opt['L']) {
7207 /*
7208 * If the feature is active but the uberblock is missing
7209 * then we must be in the middle of discarding the
7210 * checkpoint.
7211 */
7212 (void) printf("\nPartially discarded checkpoint "
7213 "state found:\n");
7214 if (dump_opt['m'] > 3)
7215 dump_leftover_checkpoint_blocks(spa);
7216 return (0);
7217 } else if (error != 0) {
7218 (void) printf("lookup error %d when looking for "
7219 "checkpointed uberblock in MOS\n", error);
7220 return (error);
7221 }
7222 dump_uberblock(&checkpoint, "\nCheckpointed uberblock found:\n", "\n");
7223
7224 if (checkpoint.ub_checkpoint_txg == 0) {
7225 (void) printf("\nub_checkpoint_txg not set in checkpointed "
7226 "uberblock\n");
7227 error = 3;
7228 }
7229
7230 if (error == 0 && !dump_opt['L'])
7231 verify_checkpoint_blocks(spa);
7232
7233 return (error);
7234 }
7235
7236 /* ARGSUSED */
7237 static void
7238 mos_leaks_cb(void *arg, uint64_t start, uint64_t size)
7239 {
7240 for (uint64_t i = start; i < size; i++) {
7241 (void) printf("MOS object %llu referenced but not allocated\n",
7242 (u_longlong_t)i);
7243 }
7244 }
7245
7246 static void
7247 mos_obj_refd(uint64_t obj)
7248 {
7249 if (obj != 0 && mos_refd_objs != NULL)
7250 range_tree_add(mos_refd_objs, obj, 1);
7251 }
7252
7253 /*
7254 * Call on a MOS object that may already have been referenced.
7255 */
7256 static void
7257 mos_obj_refd_multiple(uint64_t obj)
7258 {
7259 if (obj != 0 && mos_refd_objs != NULL &&
7260 !range_tree_contains(mos_refd_objs, obj, 1))
7261 range_tree_add(mos_refd_objs, obj, 1);
7262 }
7263
7264 static void
7265 mos_leak_vdev_top_zap(vdev_t *vd)
7266 {
7267 uint64_t ms_flush_data_obj;
7268 int error = zap_lookup(spa_meta_objset(vd->vdev_spa),
7269 vd->vdev_top_zap, VDEV_TOP_ZAP_MS_UNFLUSHED_PHYS_TXGS,
7270 sizeof (ms_flush_data_obj), 1, &ms_flush_data_obj);
7271 if (error == ENOENT)
7272 return;
7273 ASSERT0(error);
7274
7275 mos_obj_refd(ms_flush_data_obj);
7276 }
7277
7278 static void
7279 mos_leak_vdev(vdev_t *vd)
7280 {
7281 mos_obj_refd(vd->vdev_dtl_object);
7282 mos_obj_refd(vd->vdev_ms_array);
7283 mos_obj_refd(vd->vdev_indirect_config.vic_births_object);
7284 mos_obj_refd(vd->vdev_indirect_config.vic_mapping_object);
7285 mos_obj_refd(vd->vdev_leaf_zap);
7286 if (vd->vdev_checkpoint_sm != NULL)
7287 mos_obj_refd(vd->vdev_checkpoint_sm->sm_object);
7288 if (vd->vdev_indirect_mapping != NULL) {
7289 mos_obj_refd(vd->vdev_indirect_mapping->
7290 vim_phys->vimp_counts_object);
7291 }
7292 if (vd->vdev_obsolete_sm != NULL)
7293 mos_obj_refd(vd->vdev_obsolete_sm->sm_object);
7294
7295 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
7296 metaslab_t *ms = vd->vdev_ms[m];
7297 mos_obj_refd(space_map_object(ms->ms_sm));
7298 }
7299
7300 if (vd->vdev_top_zap != 0) {
7301 mos_obj_refd(vd->vdev_top_zap);
7302 mos_leak_vdev_top_zap(vd);
7303 }
7304
7305 for (uint64_t c = 0; c < vd->vdev_children; c++) {
7306 mos_leak_vdev(vd->vdev_child[c]);
7307 }
7308 }
7309
7310 static void
7311 mos_leak_log_spacemaps(spa_t *spa)
7312 {
7313 uint64_t spacemap_zap;
7314 int error = zap_lookup(spa_meta_objset(spa),
7315 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_LOG_SPACEMAP_ZAP,
7316 sizeof (spacemap_zap), 1, &spacemap_zap);
7317 if (error == ENOENT)
7318 return;
7319 ASSERT0(error);
7320
7321 mos_obj_refd(spacemap_zap);
7322 for (spa_log_sm_t *sls = avl_first(&spa->spa_sm_logs_by_txg);
7323 sls; sls = AVL_NEXT(&spa->spa_sm_logs_by_txg, sls))
7324 mos_obj_refd(sls->sls_sm_obj);
7325 }
7326
7327 static int
7328 dump_mos_leaks(spa_t *spa)
7329 {
7330 int rv = 0;
7331 objset_t *mos = spa->spa_meta_objset;
7332 dsl_pool_t *dp = spa->spa_dsl_pool;
7333
7334 /* Visit and mark all referenced objects in the MOS */
7335
7336 mos_obj_refd(DMU_POOL_DIRECTORY_OBJECT);
7337 mos_obj_refd(spa->spa_pool_props_object);
7338 mos_obj_refd(spa->spa_config_object);
7339 mos_obj_refd(spa->spa_ddt_stat_object);
7340 mos_obj_refd(spa->spa_feat_desc_obj);
7341 mos_obj_refd(spa->spa_feat_enabled_txg_obj);
7342 mos_obj_refd(spa->spa_feat_for_read_obj);
7343 mos_obj_refd(spa->spa_feat_for_write_obj);
7344 mos_obj_refd(spa->spa_history);
7345 mos_obj_refd(spa->spa_errlog_last);
7346 mos_obj_refd(spa->spa_errlog_scrub);
7347 mos_obj_refd(spa->spa_all_vdev_zaps);
7348 mos_obj_refd(spa->spa_dsl_pool->dp_bptree_obj);
7349 mos_obj_refd(spa->spa_dsl_pool->dp_tmp_userrefs_obj);
7350 mos_obj_refd(spa->spa_dsl_pool->dp_scan->scn_phys.scn_queue_obj);
7351 bpobj_count_refd(&spa->spa_deferred_bpobj);
7352 mos_obj_refd(dp->dp_empty_bpobj);
7353 bpobj_count_refd(&dp->dp_obsolete_bpobj);
7354 bpobj_count_refd(&dp->dp_free_bpobj);
7355 mos_obj_refd(spa->spa_l2cache.sav_object);
7356 mos_obj_refd(spa->spa_spares.sav_object);
7357
7358 if (spa->spa_syncing_log_sm != NULL)
7359 mos_obj_refd(spa->spa_syncing_log_sm->sm_object);
7360 mos_leak_log_spacemaps(spa);
7361
7362 mos_obj_refd(spa->spa_condensing_indirect_phys.
7363 scip_next_mapping_object);
7364 mos_obj_refd(spa->spa_condensing_indirect_phys.
7365 scip_prev_obsolete_sm_object);
7366 if (spa->spa_condensing_indirect_phys.scip_next_mapping_object != 0) {
7367 vdev_indirect_mapping_t *vim =
7368 vdev_indirect_mapping_open(mos,
7369 spa->spa_condensing_indirect_phys.scip_next_mapping_object);
7370 mos_obj_refd(vim->vim_phys->vimp_counts_object);
7371 vdev_indirect_mapping_close(vim);
7372 }
7373 deleted_livelists_dump_mos(spa);
7374
7375 if (dp->dp_origin_snap != NULL) {
7376 dsl_dataset_t *ds;
7377
7378 dsl_pool_config_enter(dp, FTAG);
7379 VERIFY0(dsl_dataset_hold_obj(dp,
7380 dsl_dataset_phys(dp->dp_origin_snap)->ds_next_snap_obj,
7381 FTAG, &ds));
7382 count_ds_mos_objects(ds);
7383 dump_blkptr_list(&ds->ds_deadlist, "Deadlist");
7384 dsl_dataset_rele(ds, FTAG);
7385 dsl_pool_config_exit(dp, FTAG);
7386
7387 count_ds_mos_objects(dp->dp_origin_snap);
7388 dump_blkptr_list(&dp->dp_origin_snap->ds_deadlist, "Deadlist");
7389 }
7390 count_dir_mos_objects(dp->dp_mos_dir);
7391 if (dp->dp_free_dir != NULL)
7392 count_dir_mos_objects(dp->dp_free_dir);
7393 if (dp->dp_leak_dir != NULL)
7394 count_dir_mos_objects(dp->dp_leak_dir);
7395
7396 mos_leak_vdev(spa->spa_root_vdev);
7397
7398 for (uint64_t class = 0; class < DDT_CLASSES; class++) {
7399 for (uint64_t type = 0; type < DDT_TYPES; type++) {
7400 for (uint64_t cksum = 0;
7401 cksum < ZIO_CHECKSUM_FUNCTIONS; cksum++) {
7402 ddt_t *ddt = spa->spa_ddt[cksum];
7403 mos_obj_refd(ddt->ddt_object[type][class]);
7404 }
7405 }
7406 }
7407
7408 /*
7409 * Visit all allocated objects and make sure they are referenced.
7410 */
7411 uint64_t object = 0;
7412 while (dmu_object_next(mos, &object, B_FALSE, 0) == 0) {
7413 if (range_tree_contains(mos_refd_objs, object, 1)) {
7414 range_tree_remove(mos_refd_objs, object, 1);
7415 } else {
7416 dmu_object_info_t doi;
7417 const char *name;
7418 dmu_object_info(mos, object, &doi);
7419 if (doi.doi_type & DMU_OT_NEWTYPE) {
7420 dmu_object_byteswap_t bswap =
7421 DMU_OT_BYTESWAP(doi.doi_type);
7422 name = dmu_ot_byteswap[bswap].ob_name;
7423 } else {
7424 name = dmu_ot[doi.doi_type].ot_name;
7425 }
7426
7427 (void) printf("MOS object %llu (%s) leaked\n",
7428 (u_longlong_t)object, name);
7429 rv = 2;
7430 }
7431 }
7432 (void) range_tree_walk(mos_refd_objs, mos_leaks_cb, NULL);
7433 if (!range_tree_is_empty(mos_refd_objs))
7434 rv = 2;
7435 range_tree_vacate(mos_refd_objs, NULL, NULL);
7436 range_tree_destroy(mos_refd_objs);
7437 return (rv);
7438 }
7439
7440 typedef struct log_sm_obsolete_stats_arg {
7441 uint64_t lsos_current_txg;
7442
7443 uint64_t lsos_total_entries;
7444 uint64_t lsos_valid_entries;
7445
7446 uint64_t lsos_sm_entries;
7447 uint64_t lsos_valid_sm_entries;
7448 } log_sm_obsolete_stats_arg_t;
7449
7450 static int
7451 log_spacemap_obsolete_stats_cb(spa_t *spa, space_map_entry_t *sme,
7452 uint64_t txg, void *arg)
7453 {
7454 log_sm_obsolete_stats_arg_t *lsos = arg;
7455
7456 uint64_t offset = sme->sme_offset;
7457 uint64_t vdev_id = sme->sme_vdev;
7458
7459 if (lsos->lsos_current_txg == 0) {
7460 /* this is the first log */
7461 lsos->lsos_current_txg = txg;
7462 } else if (lsos->lsos_current_txg < txg) {
7463 /* we just changed log - print stats and reset */
7464 (void) printf("%-8llu valid entries out of %-8llu - txg %llu\n",
7465 (u_longlong_t)lsos->lsos_valid_sm_entries,
7466 (u_longlong_t)lsos->lsos_sm_entries,
7467 (u_longlong_t)lsos->lsos_current_txg);
7468 lsos->lsos_valid_sm_entries = 0;
7469 lsos->lsos_sm_entries = 0;
7470 lsos->lsos_current_txg = txg;
7471 }
7472 ASSERT3U(lsos->lsos_current_txg, ==, txg);
7473
7474 lsos->lsos_sm_entries++;
7475 lsos->lsos_total_entries++;
7476
7477 vdev_t *vd = vdev_lookup_top(spa, vdev_id);
7478 if (!vdev_is_concrete(vd))
7479 return (0);
7480
7481 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift];
7482 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE);
7483
7484 if (txg < metaslab_unflushed_txg(ms))
7485 return (0);
7486 lsos->lsos_valid_sm_entries++;
7487 lsos->lsos_valid_entries++;
7488 return (0);
7489 }
7490
7491 static void
7492 dump_log_spacemap_obsolete_stats(spa_t *spa)
7493 {
7494 if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP))
7495 return;
7496
7497 log_sm_obsolete_stats_arg_t lsos;
7498 bzero(&lsos, sizeof (lsos));
7499
7500 (void) printf("Log Space Map Obsolete Entry Statistics:\n");
7501
7502 iterate_through_spacemap_logs(spa,
7503 log_spacemap_obsolete_stats_cb, &lsos);
7504
7505 /* print stats for latest log */
7506 (void) printf("%-8llu valid entries out of %-8llu - txg %llu\n",
7507 (u_longlong_t)lsos.lsos_valid_sm_entries,
7508 (u_longlong_t)lsos.lsos_sm_entries,
7509 (u_longlong_t)lsos.lsos_current_txg);
7510
7511 (void) printf("%-8llu valid entries out of %-8llu - total\n\n",
7512 (u_longlong_t)lsos.lsos_valid_entries,
7513 (u_longlong_t)lsos.lsos_total_entries);
7514 }
7515
7516 static void
7517 dump_zpool(spa_t *spa)
7518 {
7519 dsl_pool_t *dp = spa_get_dsl(spa);
7520 int rc = 0;
7521
7522 if (dump_opt['y']) {
7523 livelist_metaslab_validate(spa);
7524 }
7525
7526 if (dump_opt['S']) {
7527 dump_simulated_ddt(spa);
7528 return;
7529 }
7530
7531 if (!dump_opt['e'] && dump_opt['C'] > 1) {
7532 (void) printf("\nCached configuration:\n");
7533 dump_nvlist(spa->spa_config, 8);
7534 }
7535
7536 if (dump_opt['C'])
7537 dump_config(spa);
7538
7539 if (dump_opt['u'])
7540 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
7541
7542 if (dump_opt['D'])
7543 dump_all_ddts(spa);
7544
7545 if (dump_opt['d'] > 2 || dump_opt['m'])
7546 dump_metaslabs(spa);
7547 if (dump_opt['M'])
7548 dump_metaslab_groups(spa);
7549 if (dump_opt['d'] > 2 || dump_opt['m']) {
7550 dump_log_spacemaps(spa);
7551 dump_log_spacemap_obsolete_stats(spa);
7552 }
7553
7554 if (dump_opt['d'] || dump_opt['i']) {
7555 spa_feature_t f;
7556 mos_refd_objs = range_tree_create(NULL, RANGE_SEG64, NULL, 0,
7557 0);
7558 dump_objset(dp->dp_meta_objset);
7559
7560 if (dump_opt['d'] >= 3) {
7561 dsl_pool_t *dp = spa->spa_dsl_pool;
7562 dump_full_bpobj(&spa->spa_deferred_bpobj,
7563 "Deferred frees", 0);
7564 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
7565 dump_full_bpobj(&dp->dp_free_bpobj,
7566 "Pool snapshot frees", 0);
7567 }
7568 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) {
7569 ASSERT(spa_feature_is_enabled(spa,
7570 SPA_FEATURE_DEVICE_REMOVAL));
7571 dump_full_bpobj(&dp->dp_obsolete_bpobj,
7572 "Pool obsolete blocks", 0);
7573 }
7574
7575 if (spa_feature_is_active(spa,
7576 SPA_FEATURE_ASYNC_DESTROY)) {
7577 dump_bptree(spa->spa_meta_objset,
7578 dp->dp_bptree_obj,
7579 "Pool dataset frees");
7580 }
7581 dump_dtl(spa->spa_root_vdev, 0);
7582 }
7583
7584 for (spa_feature_t f = 0; f < SPA_FEATURES; f++)
7585 global_feature_count[f] = UINT64_MAX;
7586 global_feature_count[SPA_FEATURE_REDACTION_BOOKMARKS] = 0;
7587 global_feature_count[SPA_FEATURE_BOOKMARK_WRITTEN] = 0;
7588 global_feature_count[SPA_FEATURE_LIVELIST] = 0;
7589
7590 (void) dmu_objset_find(spa_name(spa), dump_one_objset,
7591 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
7592
7593 if (rc == 0 && !dump_opt['L'])
7594 rc = dump_mos_leaks(spa);
7595
7596 for (f = 0; f < SPA_FEATURES; f++) {
7597 uint64_t refcount;
7598
7599 uint64_t *arr;
7600 if (!(spa_feature_table[f].fi_flags &
7601 ZFEATURE_FLAG_PER_DATASET)) {
7602 if (global_feature_count[f] == UINT64_MAX)
7603 continue;
7604 if (!spa_feature_is_enabled(spa, f)) {
7605 ASSERT0(global_feature_count[f]);
7606 continue;
7607 }
7608 arr = global_feature_count;
7609 } else {
7610 if (!spa_feature_is_enabled(spa, f)) {
7611 ASSERT0(dataset_feature_count[f]);
7612 continue;
7613 }
7614 arr = dataset_feature_count;
7615 }
7616 if (feature_get_refcount(spa, &spa_feature_table[f],
7617 &refcount) == ENOTSUP)
7618 continue;
7619 if (arr[f] != refcount) {
7620 (void) printf("%s feature refcount mismatch: "
7621 "%lld consumers != %lld refcount\n",
7622 spa_feature_table[f].fi_uname,
7623 (longlong_t)arr[f], (longlong_t)refcount);
7624 rc = 2;
7625 } else {
7626 (void) printf("Verified %s feature refcount "
7627 "of %llu is correct\n",
7628 spa_feature_table[f].fi_uname,
7629 (longlong_t)refcount);
7630 }
7631 }
7632
7633 if (rc == 0)
7634 rc = verify_device_removal_feature_counts(spa);
7635 }
7636
7637 if (rc == 0 && (dump_opt['b'] || dump_opt['c']))
7638 rc = dump_block_stats(spa);
7639
7640 if (rc == 0)
7641 rc = verify_spacemap_refcounts(spa);
7642
7643 if (dump_opt['s'])
7644 show_pool_stats(spa);
7645
7646 if (dump_opt['h'])
7647 dump_history(spa);
7648
7649 if (rc == 0)
7650 rc = verify_checkpoint(spa);
7651
7652 if (rc != 0) {
7653 dump_debug_buffer();
7654 exit(rc);
7655 }
7656 }
7657
7658 #define ZDB_FLAG_CHECKSUM 0x0001
7659 #define ZDB_FLAG_DECOMPRESS 0x0002
7660 #define ZDB_FLAG_BSWAP 0x0004
7661 #define ZDB_FLAG_GBH 0x0008
7662 #define ZDB_FLAG_INDIRECT 0x0010
7663 #define ZDB_FLAG_RAW 0x0020
7664 #define ZDB_FLAG_PRINT_BLKPTR 0x0040
7665 #define ZDB_FLAG_VERBOSE 0x0080
7666
7667 static int flagbits[256];
7668 static char flagbitstr[16];
7669
7670 static void
7671 zdb_print_blkptr(const blkptr_t *bp, int flags)
7672 {
7673 char blkbuf[BP_SPRINTF_LEN];
7674
7675 if (flags & ZDB_FLAG_BSWAP)
7676 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
7677
7678 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
7679 (void) printf("%s\n", blkbuf);
7680 }
7681
7682 static void
7683 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
7684 {
7685 int i;
7686
7687 for (i = 0; i < nbps; i++)
7688 zdb_print_blkptr(&bp[i], flags);
7689 }
7690
7691 static void
7692 zdb_dump_gbh(void *buf, int flags)
7693 {
7694 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
7695 }
7696
7697 static void
7698 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
7699 {
7700 if (flags & ZDB_FLAG_BSWAP)
7701 byteswap_uint64_array(buf, size);
7702 VERIFY(write(fileno(stdout), buf, size) == size);
7703 }
7704
7705 static void
7706 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
7707 {
7708 uint64_t *d = (uint64_t *)buf;
7709 unsigned nwords = size / sizeof (uint64_t);
7710 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
7711 unsigned i, j;
7712 const char *hdr;
7713 char *c;
7714
7715
7716 if (do_bswap)
7717 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
7718 else
7719 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
7720
7721 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
7722
7723 #ifdef _LITTLE_ENDIAN
7724 /* correct the endianness */
7725 do_bswap = !do_bswap;
7726 #endif
7727 for (i = 0; i < nwords; i += 2) {
7728 (void) printf("%06llx: %016llx %016llx ",
7729 (u_longlong_t)(i * sizeof (uint64_t)),
7730 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
7731 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
7732
7733 c = (char *)&d[i];
7734 for (j = 0; j < 2 * sizeof (uint64_t); j++)
7735 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
7736 (void) printf("\n");
7737 }
7738 }
7739
7740 /*
7741 * There are two acceptable formats:
7742 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
7743 * child[.child]* - For example: 0.1.1
7744 *
7745 * The second form can be used to specify arbitrary vdevs anywhere
7746 * in the hierarchy. For example, in a pool with a mirror of
7747 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
7748 */
7749 static vdev_t *
7750 zdb_vdev_lookup(vdev_t *vdev, const char *path)
7751 {
7752 char *s, *p, *q;
7753 unsigned i;
7754
7755 if (vdev == NULL)
7756 return (NULL);
7757
7758 /* First, assume the x.x.x.x format */
7759 i = strtoul(path, &s, 10);
7760 if (s == path || (s && *s != '.' && *s != '\0'))
7761 goto name;
7762 if (i >= vdev->vdev_children)
7763 return (NULL);
7764
7765 vdev = vdev->vdev_child[i];
7766 if (s && *s == '\0')
7767 return (vdev);
7768 return (zdb_vdev_lookup(vdev, s+1));
7769
7770 name:
7771 for (i = 0; i < vdev->vdev_children; i++) {
7772 vdev_t *vc = vdev->vdev_child[i];
7773
7774 if (vc->vdev_path == NULL) {
7775 vc = zdb_vdev_lookup(vc, path);
7776 if (vc == NULL)
7777 continue;
7778 else
7779 return (vc);
7780 }
7781
7782 p = strrchr(vc->vdev_path, '/');
7783 p = p ? p + 1 : vc->vdev_path;
7784 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
7785
7786 if (strcmp(vc->vdev_path, path) == 0)
7787 return (vc);
7788 if (strcmp(p, path) == 0)
7789 return (vc);
7790 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
7791 return (vc);
7792 }
7793
7794 return (NULL);
7795 }
7796
7797 static int
7798 name_from_objset_id(spa_t *spa, uint64_t objset_id, char *outstr)
7799 {
7800 dsl_dataset_t *ds;
7801
7802 dsl_pool_config_enter(spa->spa_dsl_pool, FTAG);
7803 int error = dsl_dataset_hold_obj(spa->spa_dsl_pool, objset_id,
7804 NULL, &ds);
7805 if (error != 0) {
7806 (void) fprintf(stderr, "failed to hold objset %llu: %s\n",
7807 (u_longlong_t)objset_id, strerror(error));
7808 dsl_pool_config_exit(spa->spa_dsl_pool, FTAG);
7809 return (error);
7810 }
7811 dsl_dataset_name(ds, outstr);
7812 dsl_dataset_rele(ds, NULL);
7813 dsl_pool_config_exit(spa->spa_dsl_pool, FTAG);
7814 return (0);
7815 }
7816
7817 static boolean_t
7818 zdb_parse_block_sizes(char *sizes, uint64_t *lsize, uint64_t *psize)
7819 {
7820 char *s0, *s1;
7821
7822 if (sizes == NULL)
7823 return (B_FALSE);
7824
7825 s0 = strtok(sizes, "/");
7826 if (s0 == NULL)
7827 return (B_FALSE);
7828 s1 = strtok(NULL, "/");
7829 *lsize = strtoull(s0, NULL, 16);
7830 *psize = s1 ? strtoull(s1, NULL, 16) : *lsize;
7831 return (*lsize >= *psize && *psize > 0);
7832 }
7833
7834 #define ZIO_COMPRESS_MASK(alg) (1ULL << (ZIO_COMPRESS_##alg))
7835
7836 static boolean_t
7837 zdb_decompress_block(abd_t *pabd, void *buf, void *lbuf, uint64_t lsize,
7838 uint64_t psize, int flags)
7839 {
7840 boolean_t exceeded = B_FALSE;
7841 /*
7842 * We don't know how the data was compressed, so just try
7843 * every decompress function at every inflated blocksize.
7844 */
7845 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
7846 int cfuncs[ZIO_COMPRESS_FUNCTIONS] = { 0 };
7847 int *cfuncp = cfuncs;
7848 uint64_t maxlsize = SPA_MAXBLOCKSIZE;
7849 uint64_t mask = ZIO_COMPRESS_MASK(ON) | ZIO_COMPRESS_MASK(OFF) |
7850 ZIO_COMPRESS_MASK(INHERIT) | ZIO_COMPRESS_MASK(EMPTY) |
7851 (getenv("ZDB_NO_ZLE") ? ZIO_COMPRESS_MASK(ZLE) : 0);
7852 *cfuncp++ = ZIO_COMPRESS_LZ4;
7853 *cfuncp++ = ZIO_COMPRESS_LZJB;
7854 mask |= ZIO_COMPRESS_MASK(LZ4) | ZIO_COMPRESS_MASK(LZJB);
7855 for (int c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++)
7856 if (((1ULL << c) & mask) == 0)
7857 *cfuncp++ = c;
7858
7859 /*
7860 * On the one hand, with SPA_MAXBLOCKSIZE at 16MB, this
7861 * could take a while and we should let the user know
7862 * we are not stuck. On the other hand, printing progress
7863 * info gets old after a while. User can specify 'v' flag
7864 * to see the progression.
7865 */
7866 if (lsize == psize)
7867 lsize += SPA_MINBLOCKSIZE;
7868 else
7869 maxlsize = lsize;
7870 for (; lsize <= maxlsize; lsize += SPA_MINBLOCKSIZE) {
7871 for (cfuncp = cfuncs; *cfuncp; cfuncp++) {
7872 if (flags & ZDB_FLAG_VERBOSE) {
7873 (void) fprintf(stderr,
7874 "Trying %05llx -> %05llx (%s)\n",
7875 (u_longlong_t)psize,
7876 (u_longlong_t)lsize,
7877 zio_compress_table[*cfuncp].\
7878 ci_name);
7879 }
7880
7881 /*
7882 * We randomize lbuf2, and decompress to both
7883 * lbuf and lbuf2. This way, we will know if
7884 * decompression fill exactly to lsize.
7885 */
7886 VERIFY0(random_get_pseudo_bytes(lbuf2, lsize));
7887
7888 if (zio_decompress_data(*cfuncp, pabd,
7889 lbuf, psize, lsize, NULL) == 0 &&
7890 zio_decompress_data(*cfuncp, pabd,
7891 lbuf2, psize, lsize, NULL) == 0 &&
7892 bcmp(lbuf, lbuf2, lsize) == 0)
7893 break;
7894 }
7895 if (*cfuncp != 0)
7896 break;
7897 }
7898 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
7899
7900 if (lsize > maxlsize) {
7901 exceeded = B_TRUE;
7902 }
7903 buf = lbuf;
7904 if (*cfuncp == ZIO_COMPRESS_ZLE) {
7905 printf("\nZLE decompression was selected. If you "
7906 "suspect the results are wrong,\ntry avoiding ZLE "
7907 "by setting and exporting ZDB_NO_ZLE=\"true\"\n");
7908 }
7909
7910 return (exceeded);
7911 }
7912
7913 /*
7914 * Read a block from a pool and print it out. The syntax of the
7915 * block descriptor is:
7916 *
7917 * pool:vdev_specifier:offset:[lsize/]psize[:flags]
7918 *
7919 * pool - The name of the pool you wish to read from
7920 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
7921 * offset - offset, in hex, in bytes
7922 * size - Amount of data to read, in hex, in bytes
7923 * flags - A string of characters specifying options
7924 * b: Decode a blkptr at given offset within block
7925 * c: Calculate and display checksums
7926 * d: Decompress data before dumping
7927 * e: Byteswap data before dumping
7928 * g: Display data as a gang block header
7929 * i: Display as an indirect block
7930 * r: Dump raw data to stdout
7931 * v: Verbose
7932 *
7933 */
7934 static void
7935 zdb_read_block(char *thing, spa_t *spa)
7936 {
7937 blkptr_t blk, *bp = &blk;
7938 dva_t *dva = bp->blk_dva;
7939 int flags = 0;
7940 uint64_t offset = 0, psize = 0, lsize = 0, blkptr_offset = 0;
7941 zio_t *zio;
7942 vdev_t *vd;
7943 abd_t *pabd;
7944 void *lbuf, *buf;
7945 char *s, *p, *dup, *vdev, *flagstr, *sizes;
7946 int i, error;
7947 boolean_t borrowed = B_FALSE, found = B_FALSE;
7948
7949 dup = strdup(thing);
7950 s = strtok(dup, ":");
7951 vdev = s ? s : "";
7952 s = strtok(NULL, ":");
7953 offset = strtoull(s ? s : "", NULL, 16);
7954 sizes = strtok(NULL, ":");
7955 s = strtok(NULL, ":");
7956 flagstr = strdup(s ? s : "");
7957
7958 s = NULL;
7959 if (!zdb_parse_block_sizes(sizes, &lsize, &psize))
7960 s = "invalid size(s)";
7961 if (!IS_P2ALIGNED(psize, DEV_BSIZE) || !IS_P2ALIGNED(lsize, DEV_BSIZE))
7962 s = "size must be a multiple of sector size";
7963 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
7964 s = "offset must be a multiple of sector size";
7965 if (s) {
7966 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
7967 goto done;
7968 }
7969
7970 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
7971 for (i = 0; i < strlen(flagstr); i++) {
7972 int bit = flagbits[(uchar_t)flagstr[i]];
7973
7974 if (bit == 0) {
7975 (void) printf("***Ignoring flag: %c\n",
7976 (uchar_t)flagstr[i]);
7977 continue;
7978 }
7979 found = B_TRUE;
7980 flags |= bit;
7981
7982 p = &flagstr[i + 1];
7983 if (*p != ':' && *p != '\0') {
7984 int j = 0, nextbit = flagbits[(uchar_t)*p];
7985 char *end, offstr[8] = { 0 };
7986 if ((bit == ZDB_FLAG_PRINT_BLKPTR) &&
7987 (nextbit == 0)) {
7988 /* look ahead to isolate the offset */
7989 while (nextbit == 0 &&
7990 strchr(flagbitstr, *p) == NULL) {
7991 offstr[j] = *p;
7992 j++;
7993 if (i + j > strlen(flagstr))
7994 break;
7995 p++;
7996 nextbit = flagbits[(uchar_t)*p];
7997 }
7998 blkptr_offset = strtoull(offstr, &end,
7999 16);
8000 i += j;
8001 } else if (nextbit == 0) {
8002 (void) printf("***Ignoring flag arg:"
8003 " '%c'\n", (uchar_t)*p);
8004 }
8005 }
8006 }
8007 }
8008 if (blkptr_offset % sizeof (blkptr_t)) {
8009 printf("Block pointer offset 0x%llx "
8010 "must be divisible by 0x%x\n",
8011 (longlong_t)blkptr_offset, (int)sizeof (blkptr_t));
8012 goto done;
8013 }
8014 if (found == B_FALSE && strlen(flagstr) > 0) {
8015 printf("Invalid flag arg: '%s'\n", flagstr);
8016 goto done;
8017 }
8018
8019 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
8020 if (vd == NULL) {
8021 (void) printf("***Invalid vdev: %s\n", vdev);
8022 free(dup);
8023 return;
8024 } else {
8025 if (vd->vdev_path)
8026 (void) fprintf(stderr, "Found vdev: %s\n",
8027 vd->vdev_path);
8028 else
8029 (void) fprintf(stderr, "Found vdev type: %s\n",
8030 vd->vdev_ops->vdev_op_type);
8031 }
8032
8033 pabd = abd_alloc_for_io(SPA_MAXBLOCKSIZE, B_FALSE);
8034 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
8035
8036 BP_ZERO(bp);
8037
8038 DVA_SET_VDEV(&dva[0], vd->vdev_id);
8039 DVA_SET_OFFSET(&dva[0], offset);
8040 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
8041 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
8042
8043 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
8044
8045 BP_SET_LSIZE(bp, lsize);
8046 BP_SET_PSIZE(bp, psize);
8047 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
8048 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
8049 BP_SET_TYPE(bp, DMU_OT_NONE);
8050 BP_SET_LEVEL(bp, 0);
8051 BP_SET_DEDUP(bp, 0);
8052 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
8053
8054 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
8055 zio = zio_root(spa, NULL, NULL, 0);
8056
8057 if (vd == vd->vdev_top) {
8058 /*
8059 * Treat this as a normal block read.
8060 */
8061 zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL,
8062 ZIO_PRIORITY_SYNC_READ,
8063 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
8064 } else {
8065 /*
8066 * Treat this as a vdev child I/O.
8067 */
8068 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd,
8069 psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
8070 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_PROPAGATE |
8071 ZIO_FLAG_DONT_RETRY | ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW |
8072 ZIO_FLAG_OPTIONAL, NULL, NULL));
8073 }
8074
8075 error = zio_wait(zio);
8076 spa_config_exit(spa, SCL_STATE, FTAG);
8077
8078 if (error) {
8079 (void) printf("Read of %s failed, error: %d\n", thing, error);
8080 goto out;
8081 }
8082
8083 uint64_t orig_lsize = lsize;
8084 buf = lbuf;
8085 if (flags & ZDB_FLAG_DECOMPRESS) {
8086 boolean_t failed = zdb_decompress_block(pabd, buf, lbuf,
8087 lsize, psize, flags);
8088 if (failed) {
8089 (void) printf("Decompress of %s failed\n", thing);
8090 goto out;
8091 }
8092 } else {
8093 buf = abd_borrow_buf_copy(pabd, lsize);
8094 borrowed = B_TRUE;
8095 }
8096 /*
8097 * Try to detect invalid block pointer. If invalid, try
8098 * decompressing.
8099 */
8100 if ((flags & ZDB_FLAG_PRINT_BLKPTR || flags & ZDB_FLAG_INDIRECT) &&
8101 !(flags & ZDB_FLAG_DECOMPRESS)) {
8102 const blkptr_t *b = (const blkptr_t *)(void *)
8103 ((uintptr_t)buf + (uintptr_t)blkptr_offset);
8104 if (zfs_blkptr_verify(spa, b, B_FALSE, BLK_VERIFY_ONLY) ==
8105 B_FALSE) {
8106 abd_return_buf_copy(pabd, buf, lsize);
8107 borrowed = B_FALSE;
8108 buf = lbuf;
8109 boolean_t failed = zdb_decompress_block(pabd, buf,
8110 lbuf, lsize, psize, flags);
8111 b = (const blkptr_t *)(void *)
8112 ((uintptr_t)buf + (uintptr_t)blkptr_offset);
8113 if (failed || zfs_blkptr_verify(spa, b, B_FALSE,
8114 BLK_VERIFY_LOG) == B_FALSE) {
8115 printf("invalid block pointer at this DVA\n");
8116 goto out;
8117 }
8118 }
8119 }
8120
8121 if (flags & ZDB_FLAG_PRINT_BLKPTR)
8122 zdb_print_blkptr((blkptr_t *)(void *)
8123 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
8124 else if (flags & ZDB_FLAG_RAW)
8125 zdb_dump_block_raw(buf, lsize, flags);
8126 else if (flags & ZDB_FLAG_INDIRECT)
8127 zdb_dump_indirect((blkptr_t *)buf,
8128 orig_lsize / sizeof (blkptr_t), flags);
8129 else if (flags & ZDB_FLAG_GBH)
8130 zdb_dump_gbh(buf, flags);
8131 else
8132 zdb_dump_block(thing, buf, lsize, flags);
8133
8134 /*
8135 * If :c was specified, iterate through the checksum table to
8136 * calculate and display each checksum for our specified
8137 * DVA and length.
8138 */
8139 if ((flags & ZDB_FLAG_CHECKSUM) && !(flags & ZDB_FLAG_RAW) &&
8140 !(flags & ZDB_FLAG_GBH)) {
8141 zio_t *czio;
8142 (void) printf("\n");
8143 for (enum zio_checksum ck = ZIO_CHECKSUM_LABEL;
8144 ck < ZIO_CHECKSUM_FUNCTIONS; ck++) {
8145
8146 if ((zio_checksum_table[ck].ci_flags &
8147 ZCHECKSUM_FLAG_EMBEDDED) ||
8148 ck == ZIO_CHECKSUM_NOPARITY) {
8149 continue;
8150 }
8151 BP_SET_CHECKSUM(bp, ck);
8152 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
8153 czio = zio_root(spa, NULL, NULL, ZIO_FLAG_CANFAIL);
8154 czio->io_bp = bp;
8155
8156 if (vd == vd->vdev_top) {
8157 zio_nowait(zio_read(czio, spa, bp, pabd, psize,
8158 NULL, NULL,
8159 ZIO_PRIORITY_SYNC_READ,
8160 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW |
8161 ZIO_FLAG_DONT_RETRY, NULL));
8162 } else {
8163 zio_nowait(zio_vdev_child_io(czio, bp, vd,
8164 offset, pabd, psize, ZIO_TYPE_READ,
8165 ZIO_PRIORITY_SYNC_READ,
8166 ZIO_FLAG_DONT_CACHE |
8167 ZIO_FLAG_DONT_PROPAGATE |
8168 ZIO_FLAG_DONT_RETRY |
8169 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW |
8170 ZIO_FLAG_SPECULATIVE |
8171 ZIO_FLAG_OPTIONAL, NULL, NULL));
8172 }
8173 error = zio_wait(czio);
8174 if (error == 0 || error == ECKSUM) {
8175 zio_t *ck_zio = zio_root(spa, NULL, NULL, 0);
8176 ck_zio->io_offset =
8177 DVA_GET_OFFSET(&bp->blk_dva[0]);
8178 ck_zio->io_bp = bp;
8179 zio_checksum_compute(ck_zio, ck, pabd, lsize);
8180 printf("%12s\tcksum=%llx:%llx:%llx:%llx\n",
8181 zio_checksum_table[ck].ci_name,
8182 (u_longlong_t)bp->blk_cksum.zc_word[0],
8183 (u_longlong_t)bp->blk_cksum.zc_word[1],
8184 (u_longlong_t)bp->blk_cksum.zc_word[2],
8185 (u_longlong_t)bp->blk_cksum.zc_word[3]);
8186 zio_wait(ck_zio);
8187 } else {
8188 printf("error %d reading block\n", error);
8189 }
8190 spa_config_exit(spa, SCL_STATE, FTAG);
8191 }
8192 }
8193
8194 if (borrowed)
8195 abd_return_buf_copy(pabd, buf, lsize);
8196
8197 out:
8198 abd_free(pabd);
8199 umem_free(lbuf, SPA_MAXBLOCKSIZE);
8200 done:
8201 free(flagstr);
8202 free(dup);
8203 }
8204
8205 static void
8206 zdb_embedded_block(char *thing)
8207 {
8208 blkptr_t bp;
8209 unsigned long long *words = (void *)&bp;
8210 char *buf;
8211 int err;
8212
8213 bzero(&bp, sizeof (bp));
8214 err = sscanf(thing, "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx:"
8215 "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx",
8216 words + 0, words + 1, words + 2, words + 3,
8217 words + 4, words + 5, words + 6, words + 7,
8218 words + 8, words + 9, words + 10, words + 11,
8219 words + 12, words + 13, words + 14, words + 15);
8220 if (err != 16) {
8221 (void) fprintf(stderr, "invalid input format\n");
8222 exit(1);
8223 }
8224 ASSERT3U(BPE_GET_LSIZE(&bp), <=, SPA_MAXBLOCKSIZE);
8225 buf = malloc(SPA_MAXBLOCKSIZE);
8226 if (buf == NULL) {
8227 (void) fprintf(stderr, "out of memory\n");
8228 exit(1);
8229 }
8230 err = decode_embedded_bp(&bp, buf, BPE_GET_LSIZE(&bp));
8231 if (err != 0) {
8232 (void) fprintf(stderr, "decode failed: %u\n", err);
8233 exit(1);
8234 }
8235 zdb_dump_block_raw(buf, BPE_GET_LSIZE(&bp), 0);
8236 free(buf);
8237 }
8238
8239 int
8240 main(int argc, char **argv)
8241 {
8242 int c;
8243 struct rlimit rl = { 1024, 1024 };
8244 spa_t *spa = NULL;
8245 objset_t *os = NULL;
8246 int dump_all = 1;
8247 int verbose = 0;
8248 int error = 0;
8249 char **searchdirs = NULL;
8250 int nsearch = 0;
8251 char *target, *target_pool, dsname[ZFS_MAX_DATASET_NAME_LEN];
8252 nvlist_t *policy = NULL;
8253 uint64_t max_txg = UINT64_MAX;
8254 int64_t objset_id = -1;
8255 uint64_t object;
8256 int flags = ZFS_IMPORT_MISSING_LOG;
8257 int rewind = ZPOOL_NEVER_REWIND;
8258 char *spa_config_path_env, *objset_str;
8259 boolean_t target_is_spa = B_TRUE, dataset_lookup = B_FALSE;
8260 nvlist_t *cfg = NULL;
8261
8262 (void) setrlimit(RLIMIT_NOFILE, &rl);
8263 (void) enable_extended_FILE_stdio(-1, -1);
8264
8265 dprintf_setup(&argc, argv);
8266
8267 /*
8268 * If there is an environment variable SPA_CONFIG_PATH it overrides
8269 * default spa_config_path setting. If -U flag is specified it will
8270 * override this environment variable settings once again.
8271 */
8272 spa_config_path_env = getenv("SPA_CONFIG_PATH");
8273 if (spa_config_path_env != NULL)
8274 spa_config_path = spa_config_path_env;
8275
8276 /*
8277 * For performance reasons, we set this tunable down. We do so before
8278 * the arg parsing section so that the user can override this value if
8279 * they choose.
8280 */
8281 zfs_btree_verify_intensity = 3;
8282
8283 while ((c = getopt(argc, argv,
8284 "AbcCdDeEFGhiI:klLmMo:Op:PqrRsSt:uU:vVx:XYyZ")) != -1) {
8285 switch (c) {
8286 case 'b':
8287 case 'c':
8288 case 'C':
8289 case 'd':
8290 case 'D':
8291 case 'E':
8292 case 'G':
8293 case 'h':
8294 case 'i':
8295 case 'l':
8296 case 'm':
8297 case 'M':
8298 case 'O':
8299 case 'r':
8300 case 'R':
8301 case 's':
8302 case 'S':
8303 case 'u':
8304 case 'y':
8305 case 'Z':
8306 dump_opt[c]++;
8307 dump_all = 0;
8308 break;
8309 case 'A':
8310 case 'e':
8311 case 'F':
8312 case 'k':
8313 case 'L':
8314 case 'P':
8315 case 'q':
8316 case 'X':
8317 dump_opt[c]++;
8318 break;
8319 case 'Y':
8320 zfs_reconstruct_indirect_combinations_max = INT_MAX;
8321 zfs_deadman_enabled = 0;
8322 break;
8323 /* NB: Sort single match options below. */
8324 case 'I':
8325 max_inflight_bytes = strtoull(optarg, NULL, 0);
8326 if (max_inflight_bytes == 0) {
8327 (void) fprintf(stderr, "maximum number "
8328 "of inflight bytes must be greater "
8329 "than 0\n");
8330 usage();
8331 }
8332 break;
8333 case 'o':
8334 error = set_global_var(optarg);
8335 if (error != 0)
8336 usage();
8337 break;
8338 case 'p':
8339 if (searchdirs == NULL) {
8340 searchdirs = umem_alloc(sizeof (char *),
8341 UMEM_NOFAIL);
8342 } else {
8343 char **tmp = umem_alloc((nsearch + 1) *
8344 sizeof (char *), UMEM_NOFAIL);
8345 bcopy(searchdirs, tmp, nsearch *
8346 sizeof (char *));
8347 umem_free(searchdirs,
8348 nsearch * sizeof (char *));
8349 searchdirs = tmp;
8350 }
8351 searchdirs[nsearch++] = optarg;
8352 break;
8353 case 't':
8354 max_txg = strtoull(optarg, NULL, 0);
8355 if (max_txg < TXG_INITIAL) {
8356 (void) fprintf(stderr, "incorrect txg "
8357 "specified: %s\n", optarg);
8358 usage();
8359 }
8360 break;
8361 case 'U':
8362 spa_config_path = optarg;
8363 if (spa_config_path[0] != '/') {
8364 (void) fprintf(stderr,
8365 "cachefile must be an absolute path "
8366 "(i.e. start with a slash)\n");
8367 usage();
8368 }
8369 break;
8370 case 'v':
8371 verbose++;
8372 break;
8373 case 'V':
8374 flags = ZFS_IMPORT_VERBATIM;
8375 break;
8376 case 'x':
8377 vn_dumpdir = optarg;
8378 break;
8379 default:
8380 usage();
8381 break;
8382 }
8383 }
8384
8385 if (!dump_opt['e'] && searchdirs != NULL) {
8386 (void) fprintf(stderr, "-p option requires use of -e\n");
8387 usage();
8388 }
8389 if (dump_opt['d'] || dump_opt['r']) {
8390 /* <pool>[/<dataset | objset id> is accepted */
8391 if (argv[2] && (objset_str = strchr(argv[2], '/')) != NULL &&
8392 objset_str++ != NULL) {
8393 char *endptr;
8394 errno = 0;
8395 objset_id = strtoull(objset_str, &endptr, 0);
8396 /* dataset 0 is the same as opening the pool */
8397 if (errno == 0 && endptr != objset_str &&
8398 objset_id != 0) {
8399 target_is_spa = B_FALSE;
8400 dataset_lookup = B_TRUE;
8401 } else if (objset_id != 0) {
8402 printf("failed to open objset %s "
8403 "%llu %s", objset_str,
8404 (u_longlong_t)objset_id,
8405 strerror(errno));
8406 exit(1);
8407 }
8408 /* normal dataset name not an objset ID */
8409 if (endptr == objset_str) {
8410 objset_id = -1;
8411 }
8412 }
8413 }
8414
8415 #if defined(_LP64)
8416 /*
8417 * ZDB does not typically re-read blocks; therefore limit the ARC
8418 * to 256 MB, which can be used entirely for metadata.
8419 */
8420 zfs_arc_min = zfs_arc_meta_min = 2ULL << SPA_MAXBLOCKSHIFT;
8421 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024;
8422 #endif
8423
8424 /*
8425 * "zdb -c" uses checksum-verifying scrub i/os which are async reads.
8426 * "zdb -b" uses traversal prefetch which uses async reads.
8427 * For good performance, let several of them be active at once.
8428 */
8429 zfs_vdev_async_read_max_active = 10;
8430
8431 /*
8432 * Disable reference tracking for better performance.
8433 */
8434 reference_tracking_enable = B_FALSE;
8435
8436 /*
8437 * Do not fail spa_load when spa_load_verify fails. This is needed
8438 * to load non-idle pools.
8439 */
8440 spa_load_verify_dryrun = B_TRUE;
8441
8442 kernel_init(SPA_MODE_READ);
8443
8444 if (dump_all)
8445 verbose = MAX(verbose, 1);
8446
8447 for (c = 0; c < 256; c++) {
8448 if (dump_all && strchr("AeEFklLOPrRSXy", c) == NULL)
8449 dump_opt[c] = 1;
8450 if (dump_opt[c])
8451 dump_opt[c] += verbose;
8452 }
8453
8454 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
8455 zfs_recover = (dump_opt['A'] > 1);
8456
8457 argc -= optind;
8458 argv += optind;
8459 if (argc < 2 && dump_opt['R'])
8460 usage();
8461
8462 if (dump_opt['E']) {
8463 if (argc != 1)
8464 usage();
8465 zdb_embedded_block(argv[0]);
8466 return (0);
8467 }
8468
8469 if (argc < 1) {
8470 if (!dump_opt['e'] && dump_opt['C']) {
8471 dump_cachefile(spa_config_path);
8472 return (0);
8473 }
8474 usage();
8475 }
8476
8477 if (dump_opt['l'])
8478 return (dump_label(argv[0]));
8479
8480 if (dump_opt['O']) {
8481 if (argc != 2)
8482 usage();
8483 dump_opt['v'] = verbose + 3;
8484 return (dump_path(argv[0], argv[1], NULL));
8485 }
8486 if (dump_opt['r']) {
8487 if (argc != 3)
8488 usage();
8489 dump_opt['v'] = verbose;
8490 error = dump_path(argv[0], argv[1], &object);
8491 }
8492
8493 if (dump_opt['X'] || dump_opt['F'])
8494 rewind = ZPOOL_DO_REWIND |
8495 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
8496
8497 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
8498 nvlist_add_uint64(policy, ZPOOL_LOAD_REQUEST_TXG, max_txg) != 0 ||
8499 nvlist_add_uint32(policy, ZPOOL_LOAD_REWIND_POLICY, rewind) != 0)
8500 fatal("internal error: %s", strerror(ENOMEM));
8501
8502 error = 0;
8503 target = argv[0];
8504
8505 if (strpbrk(target, "/@") != NULL) {
8506 size_t targetlen;
8507
8508 target_pool = strdup(target);
8509 *strpbrk(target_pool, "/@") = '\0';
8510
8511 target_is_spa = B_FALSE;
8512 targetlen = strlen(target);
8513 if (targetlen && target[targetlen - 1] == '/')
8514 target[targetlen - 1] = '\0';
8515 } else {
8516 target_pool = target;
8517 }
8518
8519 if (dump_opt['e']) {
8520 importargs_t args = { 0 };
8521
8522 args.paths = nsearch;
8523 args.path = searchdirs;
8524 args.can_be_active = B_TRUE;
8525
8526 error = zpool_find_config(NULL, target_pool, &cfg, &args,
8527 &libzpool_config_ops);
8528
8529 if (error == 0) {
8530
8531 if (nvlist_add_nvlist(cfg,
8532 ZPOOL_LOAD_POLICY, policy) != 0) {
8533 fatal("can't open '%s': %s",
8534 target, strerror(ENOMEM));
8535 }
8536
8537 if (dump_opt['C'] > 1) {
8538 (void) printf("\nConfiguration for import:\n");
8539 dump_nvlist(cfg, 8);
8540 }
8541
8542 /*
8543 * Disable the activity check to allow examination of
8544 * active pools.
8545 */
8546 error = spa_import(target_pool, cfg, NULL,
8547 flags | ZFS_IMPORT_SKIP_MMP);
8548 }
8549 }
8550
8551 if (searchdirs != NULL) {
8552 umem_free(searchdirs, nsearch * sizeof (char *));
8553 searchdirs = NULL;
8554 }
8555
8556 /*
8557 * import_checkpointed_state makes the assumption that the
8558 * target pool that we pass it is already part of the spa
8559 * namespace. Because of that we need to make sure to call
8560 * it always after the -e option has been processed, which
8561 * imports the pool to the namespace if it's not in the
8562 * cachefile.
8563 */
8564 char *checkpoint_pool = NULL;
8565 char *checkpoint_target = NULL;
8566 if (dump_opt['k']) {
8567 checkpoint_pool = import_checkpointed_state(target, cfg,
8568 &checkpoint_target);
8569
8570 if (checkpoint_target != NULL)
8571 target = checkpoint_target;
8572 }
8573
8574 if (cfg != NULL) {
8575 nvlist_free(cfg);
8576 cfg = NULL;
8577 }
8578
8579 if (target_pool != target)
8580 free(target_pool);
8581
8582 if (error == 0) {
8583 if (dump_opt['k'] && (target_is_spa || dump_opt['R'])) {
8584 ASSERT(checkpoint_pool != NULL);
8585 ASSERT(checkpoint_target == NULL);
8586
8587 error = spa_open(checkpoint_pool, &spa, FTAG);
8588 if (error != 0) {
8589 fatal("Tried to open pool \"%s\" but "
8590 "spa_open() failed with error %d\n",
8591 checkpoint_pool, error);
8592 }
8593
8594 } else if (target_is_spa || dump_opt['R'] || objset_id == 0) {
8595 zdb_set_skip_mmp(target);
8596 error = spa_open_rewind(target, &spa, FTAG, policy,
8597 NULL);
8598 if (error) {
8599 /*
8600 * If we're missing the log device then
8601 * try opening the pool after clearing the
8602 * log state.
8603 */
8604 mutex_enter(&spa_namespace_lock);
8605 if ((spa = spa_lookup(target)) != NULL &&
8606 spa->spa_log_state == SPA_LOG_MISSING) {
8607 spa->spa_log_state = SPA_LOG_CLEAR;
8608 error = 0;
8609 }
8610 mutex_exit(&spa_namespace_lock);
8611
8612 if (!error) {
8613 error = spa_open_rewind(target, &spa,
8614 FTAG, policy, NULL);
8615 }
8616 }
8617 } else if (strpbrk(target, "#") != NULL) {
8618 dsl_pool_t *dp;
8619 error = dsl_pool_hold(target, FTAG, &dp);
8620 if (error != 0) {
8621 fatal("can't dump '%s': %s", target,
8622 strerror(error));
8623 }
8624 error = dump_bookmark(dp, target, B_TRUE, verbose > 1);
8625 dsl_pool_rele(dp, FTAG);
8626 if (error != 0) {
8627 fatal("can't dump '%s': %s", target,
8628 strerror(error));
8629 }
8630 return (error);
8631 } else {
8632 zdb_set_skip_mmp(target);
8633 if (dataset_lookup == B_TRUE) {
8634 /*
8635 * Use the supplied id to get the name
8636 * for open_objset.
8637 */
8638 error = spa_open(target, &spa, FTAG);
8639 if (error == 0) {
8640 error = name_from_objset_id(spa,
8641 objset_id, dsname);
8642 spa_close(spa, FTAG);
8643 if (error == 0)
8644 target = dsname;
8645 }
8646 }
8647 if (error == 0)
8648 error = open_objset(target, FTAG, &os);
8649 if (error == 0)
8650 spa = dmu_objset_spa(os);
8651 }
8652 }
8653 nvlist_free(policy);
8654
8655 if (error)
8656 fatal("can't open '%s': %s", target, strerror(error));
8657
8658 /*
8659 * Set the pool failure mode to panic in order to prevent the pool
8660 * from suspending. A suspended I/O will have no way to resume and
8661 * can prevent the zdb(8) command from terminating as expected.
8662 */
8663 if (spa != NULL)
8664 spa->spa_failmode = ZIO_FAILURE_MODE_PANIC;
8665
8666 argv++;
8667 argc--;
8668 if (dump_opt['r']) {
8669 error = zdb_copy_object(os, object, argv[1]);
8670 } else if (!dump_opt['R']) {
8671 flagbits['d'] = ZOR_FLAG_DIRECTORY;
8672 flagbits['f'] = ZOR_FLAG_PLAIN_FILE;
8673 flagbits['m'] = ZOR_FLAG_SPACE_MAP;
8674 flagbits['z'] = ZOR_FLAG_ZAP;
8675 flagbits['A'] = ZOR_FLAG_ALL_TYPES;
8676
8677 if (argc > 0 && dump_opt['d']) {
8678 zopt_object_args = argc;
8679 zopt_object_ranges = calloc(zopt_object_args,
8680 sizeof (zopt_object_range_t));
8681 for (unsigned i = 0; i < zopt_object_args; i++) {
8682 int err;
8683 char *msg = NULL;
8684
8685 err = parse_object_range(argv[i],
8686 &zopt_object_ranges[i], &msg);
8687 if (err != 0)
8688 fatal("Bad object or range: '%s': %s\n",
8689 argv[i], msg ? msg : "");
8690 }
8691 } else if (argc > 0 && dump_opt['m']) {
8692 zopt_metaslab_args = argc;
8693 zopt_metaslab = calloc(zopt_metaslab_args,
8694 sizeof (uint64_t));
8695 for (unsigned i = 0; i < zopt_metaslab_args; i++) {
8696 errno = 0;
8697 zopt_metaslab[i] = strtoull(argv[i], NULL, 0);
8698 if (zopt_metaslab[i] == 0 && errno != 0)
8699 fatal("bad number %s: %s", argv[i],
8700 strerror(errno));
8701 }
8702 }
8703 if (os != NULL) {
8704 dump_objset(os);
8705 } else if (zopt_object_args > 0 && !dump_opt['m']) {
8706 dump_objset(spa->spa_meta_objset);
8707 } else {
8708 dump_zpool(spa);
8709 }
8710 } else {
8711 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
8712 flagbits['c'] = ZDB_FLAG_CHECKSUM;
8713 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
8714 flagbits['e'] = ZDB_FLAG_BSWAP;
8715 flagbits['g'] = ZDB_FLAG_GBH;
8716 flagbits['i'] = ZDB_FLAG_INDIRECT;
8717 flagbits['r'] = ZDB_FLAG_RAW;
8718 flagbits['v'] = ZDB_FLAG_VERBOSE;
8719
8720 for (int i = 0; i < argc; i++)
8721 zdb_read_block(argv[i], spa);
8722 }
8723
8724 if (dump_opt['k']) {
8725 free(checkpoint_pool);
8726 if (!target_is_spa)
8727 free(checkpoint_target);
8728 }
8729
8730 if (os != NULL) {
8731 close_objset(os, FTAG);
8732 } else {
8733 spa_close(spa, FTAG);
8734 }
8735
8736 fuid_table_destroy();
8737
8738 dump_debug_buffer();
8739
8740 kernel_fini();
8741
8742 return (error);
8743 }
OpenZFS on Linux and FreeBSD