tests/qemu-iotests/204

   1 #!/usr/bin/env bash
   2 #
   3 # Test corner cases with unusual block geometries
   4 #
   5 # Copyright (C) 2016-2018 Red Hat, Inc.
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 2 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 #
  20
  21 # creator
  22 owner=eblake@redhat.com
  23
  24 seq=`basename $0`
  25 echo "QA output created by $seq"
  26
  27 status=1        # failure is the default!
  28
  29 _cleanup()
  30 {
  31         _cleanup_test_img
  32 }
  33 trap "_cleanup; exit \$status" 0 1 2 3 15
  34
  35 # get standard environment, filters and checks
  36 . ./common.rc
  37 . ./common.filter
  38
  39 _supported_fmt qcow2
  40 _supported_proto file
  41 # This test assumes that discard leaves zero clusters; see test 177 for
  42 # other tests that also work in older images
  43 _unsupported_imgopts 'compat=0.10'
  44
  45 CLUSTER_SIZE=1M
  46 size=128M
  47 options=driver=blkdebug,image.driver=qcow2
  48 nested_opts=image.file.driver=file,image.file.filename=$TEST_IMG
  49
  50 echo
  51 echo "== setting up files =="
  52
  53 TEST_IMG="$TEST_IMG.base" _make_test_img $size
  54 $QEMU_IO -c "write -P 11 0 $size" "$TEST_IMG.base" | _filter_qemu_io
  55 _make_test_img -b "$TEST_IMG.base" -F $IMGFMT
  56 $QEMU_IO -c "write -P 22 0 110M" "$TEST_IMG" | _filter_qemu_io
  57
  58 # Limited to 64k max-transfer
  59 echo
  60 echo "== constrained alignment and max-transfer =="
  61 limits=align=4k,max-transfer=64k
  62 $QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
  63          -c "write -P 33 1000 128k" -c "read -P 33 1000 128k" | _filter_qemu_io
  64
  65 echo
  66 echo "== write zero with constrained max-transfer =="
  67 limits=align=512,max-transfer=64k,opt-write-zero=$CLUSTER_SIZE
  68 $QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
  69          -c "write -z 8003584 2093056" | _filter_qemu_io
  70
  71 # non-power-of-2 write-zero/discard alignments
  72 echo
  73 echo "== non-power-of-2 write zeroes limits =="
  74
  75 limits=align=512,opt-write-zero=15M,max-write-zero=15M,opt-discard=15M,max-discard=15M
  76 $QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
  77          -c "write -z 32M 32M" | _filter_qemu_io
  78
  79 echo
  80 echo "== non-power-of-2 discard limits =="
  81
  82 limits=align=512,opt-write-zero=15M,max-write-zero=15M,opt-discard=15M,max-discard=15M
  83 $QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
  84          -c "discard 80000001 30M" | _filter_qemu_io
  85
  86 echo
  87 echo "== block status smaller than alignment =="
  88 limits=align=4k
  89 $QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
  90          -c "alloc 1 1" -c "alloc 0x6dffff0 1000" -c "alloc 127m 5P" \
  91          -c map | _filter_qemu_io
  92
  93 echo
  94 echo "== verify image content =="
  95
  96 verify_io()
  97 {
  98     echo read -P 22 0 1000
  99     echo read -P 33 1000 128k
 100     echo read -P 22 132072 7871512
 101     echo read -P 0 8003584 2093056
 102     echo read -P 22 10096640 23457792
 103     echo read -P 0 32M 32M
 104     echo read -P 22 64M 13M
 105     echo read -P 0 77M 29M
 106     echo read -P 22 106M 4M
 107     echo read -P 11 110M 18M
 108 }
 109
 110 verify_io | $QEMU_IO -r "$TEST_IMG" | _filter_qemu_io
 111 $QEMU_IMG map --image-opts "$options,$nested_opts,align=4k" \
 112     | _filter_qemu_img_map
 113
 114 _check_test_img
 115
 116 # success, all done
 117 echo "*** done"
 118 status=0