qemu/tests/qemu-iotests/137

   1 #!/bin/bash
   2 #
   3 # Test qcow2 reopen
   4 #
   5 # Copyright (C) 2015 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=kwolf@redhat.com
  23
  24 seq="$(basename $0)"
  25 echo "QA output created by $seq"
  26
  27 here="$PWD"
  28 status=1        # failure is the default!
  29
  30 _cleanup()
  31 {
  32     _cleanup_test_img
  33 }
  34 trap "_cleanup; exit \$status" 0 1 2 3 15
  35
  36 # get standard environment, filters and checks
  37 . ./common.rc
  38 . ./common.filter
  39 . ./common.qemu
  40
  41 _supported_fmt qcow2
  42 _supported_proto generic
  43 _supported_os Linux
  44
  45
  46 _make_test_img 64M
  47
  48 echo === Try setting valid values for all options ===
  49 echo
  50
  51 # Try all options and then check that all of the basic I/O operations still
  52 # work on this image.
  53 $QEMU_IO \
  54     -c "reopen -o lazy-refcounts=on,pass-discard-request=on" \
  55     -c "reopen -o lazy-refcounts=off,pass-discard-request=off" \
  56     -c "reopen -o pass-discard-snapshot=on,pass-discard-other=on" \
  57     -c "reopen -o pass-discard-snapshot=off,pass-discard-other=off" \
  58     -c "reopen -o overlap-check=all" \
  59     -c "reopen -o overlap-check=none" \
  60     -c "reopen -o overlap-check=cached" \
  61     -c "reopen -o overlap-check=constant" \
  62     -c "reopen -o overlap-check.template=all" \
  63     -c "reopen -o overlap-check.template=none" \
  64     -c "reopen -o overlap-check.template=cached" \
  65     -c "reopen -o overlap-check.template=constant" \
  66     -c "reopen -o overlap-check.main-header=on" \
  67     -c "reopen -o overlap-check.main-header=off" \
  68     -c "reopen -o overlap-check.active-l1=on" \
  69     -c "reopen -o overlap-check.active-l1=off" \
  70     -c "reopen -o overlap-check.active-l2=on" \
  71     -c "reopen -o overlap-check.active-l2=off" \
  72     -c "reopen -o overlap-check.refcount-table=on" \
  73     -c "reopen -o overlap-check.refcount-table=off" \
  74     -c "reopen -o overlap-check.refcount-block=on" \
  75     -c "reopen -o overlap-check.refcount-block=off" \
  76     -c "reopen -o overlap-check.snapshot-table=on" \
  77     -c "reopen -o overlap-check.snapshot-table=off" \
  78     -c "reopen -o overlap-check.inactive-l1=on" \
  79     -c "reopen -o overlap-check.inactive-l1=off" \
  80     -c "reopen -o overlap-check.inactive-l2=on" \
  81     -c "reopen -o overlap-check.inactive-l2=off" \
  82     -c "reopen -o cache-size=1M" \
  83     -c "reopen -o l2-cache-size=512k" \
  84     -c "reopen -o refcount-cache-size=128k" \
  85     -c "reopen -o cache-clean-interval=5" \
  86     -c "reopen -o cache-clean-interval=0" \
  87     -c "reopen -o cache-clean-interval=10" \
  88     \
  89     -c "write -P 55 0 32M" \
  90     -c "read -P 55 0 32M" \
  91     -c "discard 0 32M" \
  92     -c "write -z 0 32M" \
  93     -c "read -P 0 0 32M" \
  94     \
  95     "$TEST_IMG" | _filter_qemu_io
  96
  97
  98 echo
  99 echo === Try setting some invalid values ===
 100 echo
 101
 102 $QEMU_IO \
 103     -c "reopen -o lazy-refcounts=42" \
 104     -c "reopen -o cache-size=1M,l2-cache-size=64k,refcount-cache-size=64k" \
 105     -c "reopen -o cache-size=1M,l2-cache-size=2M" \
 106     -c "reopen -o cache-size=1M,refcount-cache-size=2M" \
 107     -c "reopen -o l2-cache-size=256T" \
 108     -c "reopen -o refcount-cache-size=256T" \
 109     -c "reopen -o overlap-check=constant,overlap-check.template=all" \
 110     -c "reopen -o overlap-check=blubb" \
 111     -c "reopen -o overlap-check.template=blubb" \
 112     -c "reopen -o cache-clean-interval=-1" \
 113     "$TEST_IMG" | _filter_qemu_io
 114
 115 echo
 116 echo === Test transaction semantics ===
 117 echo
 118
 119 # Whether lazy-refcounts was actually enabled can easily be tested: Check if
 120 # the dirty bit is set after a crash
 121 $QEMU_IO \
 122     -c "reopen -o lazy-refcounts=on,overlap-check=blubb" \
 123     -c "write -P 0x5a 0 512" \
 124     -c "sigraise $(kill -l KILL)" \
 125     "$TEST_IMG" 2>&1 | _filter_qemu_io
 126
 127 # The dirty bit must not be set
 128 $PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features
 129
 130 # Similarly we can test whether corruption detection has been enabled:
 131 # Create L1/L2, overwrite first entry in refcount block, allocate something.
 132 # Disabling the checks should fail, so the corruption must be detected.
 133 _make_test_img 64M
 134 $QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io
 135 poke_file "$TEST_IMG" "$((0x20000))" "\x00\x00"
 136 $QEMU_IO \
 137     -c "reopen -o overlap-check=none,lazy-refcounts=42" \
 138     -c "write 64k 64k" \
 139     "$TEST_IMG" 2>&1 | _filter_qemu_io
 140
 141 # success, all done
 142 echo '*** done'
 143 rm -f $seq.full
 144 status=0