tests/qemu-iotests/185

   1 #!/usr/bin/env bash
   2 # group: rw
   3 #
   4 # Test exiting qemu while jobs are still running
   5 #
   6 # Copyright (C) 2017 Red Hat, Inc.
   7 #
   8 # This program is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 2 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 #
  21
  22 # creator
  23 owner=kwolf@redhat.com
  24
  25 seq=`basename $0`
  26 echo "QA output created by $seq"
  27
  28 status=1 # failure is the default!
  29
  30 _cleanup()
  31 {
  32     _rm_test_img "${TEST_IMG}.mid"
  33     _rm_test_img "${TEST_IMG}.copy"
  34     _cleanup_test_img
  35     _cleanup_qemu
  36 }
  37 trap "_cleanup; exit \$status" 0 1 2 3 15
  38
  39 # get standard environment, filters and checks
  40 . ./common.rc
  41 . ./common.filter
  42 . ./common.qemu
  43
  44 _supported_fmt qcow2
  45 _supported_proto file
  46 _supported_os Linux
  47
  48 size=64M
  49 TEST_IMG="${TEST_IMG}.base" _make_test_img $size
  50
  51 echo
  52 echo === Starting VM ===
  53 echo
  54
  55 qemu_comm_method="qmp"
  56
  57 _launch_qemu \
  58     -drive file="${TEST_IMG}.base",cache=$CACHEMODE,aio=$AIOMODE,driver=$IMGFMT,id=disk
  59 h=$QEMU_HANDLE
  60 _send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" 'return'
  61
  62 echo
  63 echo === Creating backing chain ===
  64 echo
  65
  66 _send_qemu_cmd $h \
  67     "{ 'execute': 'blockdev-snapshot-sync',
  68        'arguments': { 'device': 'disk',
  69                       'snapshot-file': '$TEST_IMG.mid',
  70                       'format': '$IMGFMT',
  71                       'mode': 'absolute-paths' } }" \
  72     "return"
  73
  74 _send_qemu_cmd $h \
  75     "{ 'execute': 'human-monitor-command',
  76        'arguments': { 'command-line':
  77                       'qemu-io disk \"write 0 4M\"' } }" \
  78     "return"
  79
  80 _send_qemu_cmd $h \
  81     "{ 'execute': 'blockdev-snapshot-sync',
  82        'arguments': { 'device': 'disk',
  83                       'snapshot-file': '$TEST_IMG',
  84                       'format': '$IMGFMT',
  85                       'mode': 'absolute-paths' } }" \
  86     "return"
  87
  88 echo
  89 echo === Start commit job and exit qemu ===
  90 echo
  91
  92 # Note that the reference output intentionally includes the 'offset' field in
  93 # BLOCK_JOB_* events for all of the following block jobs. They are predictable
  94 # and any change in the offsets would hint at a bug in the job throttling code.
  95 #
  96 # In order to achieve these predictable offsets, all of the following tests
  97 # use speed=65536. Each job will perform exactly one iteration before it has
  98 # to sleep at least for a second, which is plenty of time for the 'quit' QMP
  99 # command to be received (after receiving the command, the rest runs
 100 # synchronously, so jobs can arbitrarily continue or complete).
 101 #
 102 # The buffer size for commit and streaming is 512k (waiting for 8 seconds after
 103 # the first request), for active commit and mirror it's large enough to cover
 104 # the full 4M, and for backup it's the qcow2 cluster size, which we know is
 105 # 64k. As all of these are at least as large as the speed, we are sure that the
 106 # offset advances exactly once before qemu exits.
 107
 108 _send_qemu_cmd $h \
 109     "{ 'execute': 'block-commit',
 110        'arguments': { 'device': 'disk',
 111                       'base':'$TEST_IMG.base',
 112                       'top': '$TEST_IMG.mid',
 113                       'speed': 65536 } }" \
 114     "return"
 115
 116 # If we don't sleep here 'quit' command races with disk I/O
 117 sleep 0.5
 118
 119 # Ignore the JOB_STATUS_CHANGE events while shutting down the VM. Depending on
 120 # the timing, jobs may or may not transition through a paused state.
 121 _send_qemu_cmd $h "{ 'execute': 'quit' }" "return"
 122 wait=1 _cleanup_qemu | grep -v 'JOB_STATUS_CHANGE'
 123
 124 echo
 125 echo === Start active commit job and exit qemu ===
 126 echo
 127
 128 _launch_qemu \
 129     -drive file="${TEST_IMG}",cache=$CACHEMODE,aio=$AIOMODE,driver=$IMGFMT,id=disk
 130 h=$QEMU_HANDLE
 131 _send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" 'return'
 132
 133 _send_qemu_cmd $h \
 134     "{ 'execute': 'block-commit',
 135        'arguments': { 'device': 'disk',
 136                       'base':'$TEST_IMG.base',
 137                       'speed': 65536 } }" \
 138     "return"
 139
 140 # If we don't sleep here 'quit' command races with disk I/O
 141 sleep 0.5
 142
 143 _send_qemu_cmd $h "{ 'execute': 'quit' }" "return"
 144 wait=1 _cleanup_qemu | grep -v 'JOB_STATUS_CHANGE'
 145
 146 echo
 147 echo === Start mirror job and exit qemu ===
 148 echo
 149
 150 _launch_qemu \
 151     -drive file="${TEST_IMG}",cache=$CACHEMODE,aio=$AIOMODE,driver=$IMGFMT,id=disk
 152 h=$QEMU_HANDLE
 153 _send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" 'return'
 154
 155 _send_qemu_cmd $h \
 156     "{ 'execute': 'drive-mirror',
 157        'arguments': { 'device': 'disk',
 158                       'target': '$TEST_IMG.copy',
 159                       'format': '$IMGFMT',
 160                       'sync': 'full',
 161                       'speed': 65536 } }" \
 162     "return"
 163
 164 # If we don't sleep here 'quit' command may be handled before
 165 # the first mirror iteration is done
 166 sleep 0.5
 167
 168 _send_qemu_cmd $h "{ 'execute': 'quit' }" "return"
 169 wait=1 _cleanup_qemu | grep -v 'JOB_STATUS_CHANGE'
 170
 171 echo
 172 echo === Start backup job and exit qemu ===
 173 echo
 174
 175 _launch_qemu \
 176     -drive file="${TEST_IMG}",cache=$CACHEMODE,aio=$AIOMODE,driver=$IMGFMT,id=disk
 177 h=$QEMU_HANDLE
 178 _send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" 'return'
 179
 180 _send_qemu_cmd $h \
 181     "{ 'execute': 'drive-backup',
 182        'arguments': { 'device': 'disk',
 183                       'target': '$TEST_IMG.copy',
 184                       'format': '$IMGFMT',
 185                       'sync': 'full',
 186                       'speed': 65536 } }" \
 187     "return"
 188
 189 # If we don't sleep here 'quit' command races with disk I/O
 190 sleep 0.5
 191
 192 _send_qemu_cmd $h "{ 'execute': 'quit' }" "return"
 193 wait=1 _cleanup_qemu | grep -v 'JOB_STATUS_CHANGE'
 194
 195 echo
 196 echo === Start streaming job and exit qemu ===
 197 echo
 198
 199 _launch_qemu \
 200     -drive file="${TEST_IMG}",cache=$CACHEMODE,aio=$AIOMODE,driver=$IMGFMT,id=disk
 201 h=$QEMU_HANDLE
 202 _send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" 'return'
 203
 204 _send_qemu_cmd $h \
 205     "{ 'execute': 'block-stream',
 206        'arguments': { 'device': 'disk',
 207                       'speed': 65536 } }" \
 208     "return"
 209
 210 # If we don't sleep here 'quit' command races with disk I/O
 211 sleep 0.5
 212
 213 _send_qemu_cmd $h "{ 'execute': 'quit' }" "return"
 214 wait=1 _cleanup_qemu | grep -v 'JOB_STATUS_CHANGE'
 215
 216 _check_test_img
 217
 218 # success, all done
 219 echo "*** done"
 220 rm -f $seq.full
 221 status=0