usr/src/test/zfs-tests/tests/functional/mdb/mdb_001_pos.ksh

   1 #!/bin/ksh -p
   2 #
   3 # CDDL HEADER START
   4 #
   5 # The contents of this file are subject to the terms of the
   6 # Common Development and Distribution License (the "License").
   7 # You may not use this file except in compliance with the License.
   8 #
   9 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10 # or http://www.opensolaris.org/os/licensing.
  11 # See the License for the specific language governing permissions
  12 # and limitations under the License.
  13 #
  14 # When distributing Covered Code, include this CDDL HEADER in each
  15 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16 # If applicable, add the following below this CDDL HEADER, with the
  17 # fields enclosed by brackets "[]" replaced with your own identifying
  18 # information: Portions Copyright [yyyy] [name of copyright owner]
  19 #
  20 # CDDL HEADER END
  21 #
  22
  23 #
  24 # Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  25 # Use is subject to license terms.
  26 #
  27
  28 #
  29 # Copyright (c) 2013, 2016 by Delphix. All rights reserved.
  30 #
  31
  32 . $STF_SUITE/include/libtest.shlib
  33
  34 #
  35 # DESCRIPTION:
  36 #       Verify that the ZFS mdb dcmds and walkers are working as expected.
  37 #
  38 # STRATEGY:
  39 #       1) Given a list of dcmds and walkers
  40 #       2) Step through each element of the list
  41 #       3) Verify the output by checking for "mdb:" in the output string
  42 #
  43
  44 function cleanup
  45 {
  46         rm -f $OUTFILE
  47 }
  48
  49 verify_runnable "global"
  50 log_onexit cleanup
  51
  52 tmpfile=$(mktemp)
  53 log_must zpool scrub $TESTPOOL
  54
  55 typeset spa=$(mdb -ke "::spa" | awk "/$TESTPOOL/ {print \$1}")
  56 typeset off_ub=$(mdb -ke "::offsetof spa_t spa_uberblock | =J")
  57 typeset off_rbp=$(mdb -ke "::offsetof uberblock_t ub_rootbp | =J")
  58 typeset bp=$(mdb -ke "$spa + $off_ub + $off_rbp =J")
  59
  60 # dcmds and walkers skipped due to being DEBUG only or difficult to run:
  61 # ::zfs_params
  62 # ::refcount
  63
  64 set -A dcmds "::abuf_find 1 2" \
  65         "::arc" \
  66         "::arc -b" \
  67         "::arc_compression_stats" \
  68         "$bp ::blkptr" \
  69         "$bp ::dva" \
  70         "::walk spa" \
  71         "::spa" \
  72         "$spa ::spa " \
  73         "$spa ::spa -c" \
  74         "$spa ::spa -h" \
  75         "$spa ::spa -v" \
  76         "$spa ::spa -Mmh" \
  77         "$spa ::spa_config" \
  78         "$spa ::spa_space" \
  79         "$spa ::spa_space -b" \
  80         "$spa ::spa_vdevs" \
  81         "$spa ::print spa_t spa_root_vdev | ::vdev" \
  82         "$spa ::print spa_t spa_root_vdev | ::vdev -re" \
  83         "$spa ::print -a spa_t spa_dsl_pool->dp_dirty_datasets | ::walk txg_list" \
  84         "$spa ::print -a spa_t spa_uberblock.ub_rootbp | ::blkptr" \
  85         "$spa ::walk metaslab" \
  86         "$spa ::walk metaslab | ::head -1 | ::metaslab_weight" \
  87         "$spa ::walk metaslab | ::head -1 | ::metaslab_trace" \
  88         "$spa ::walk zio_root | ::zio -c" \
  89         "$spa ::walk zio_root | ::zio -r" \
  90         "$spa ::walk zms_freelist"
  91         "$spa ::zfs_blkstats -v" \
  92         "::dbufs" \
  93         "::dbufs -n mos -o mdn -l 0 -b 0" \
  94         "::dbufs | ::dbuf" \
  95         "::dbuf_stats" \
  96         "dbuf_cache ::walk multilist"
  97 #
  98 # The commands above were supplied by the ZFS development team. The idea is to
  99 # do as much checking as possible without the need to hardcode addresses.
 100 #
 101
 102 log_assert "Verify that the ZFS mdb dcmds and walkers are working as expected."
 103
 104 typeset -i RET=0
 105
 106 i=0
 107 while (( $i < ${#dcmds[*]} )); do
 108         log_note "Verifying: '${dcmds[i]}'"
 109         echo "${dcmds[i]}" | mdb -k > $OUTFILE 2>&1
 110         RET=$?
 111         if (( $RET != 0 )); then
 112                 log_fail "mdb '${dcmds[i]}' returned error $RET"
 113         fi
 114
 115         #
 116         # mdb prefixes all errors with "mdb: " so we check the output.
 117         #
 118         grep "mdb:" $OUTFILE > /dev/null 2>&1
 119         RET=$?
 120         if (( $RET == 0 )); then
 121                 echo "mdb '${dcmds[i]}' contained 'mdb:'"
 122                 # Using tail limits the number of lines in the log
 123                 tail -100 $OUTFILE
 124                 log_fail "mdb walker or dcmd failed"
 125         fi
 126
 127         ((i = i + 1))
 128 done
 129
 130 log_pass "The ZFS mdb dcmds and walkers are working as expected."