tests/qemu-iotests/185

   1 #!/usr/bin/env bash
   2 #
   3 # Test exiting qemu while jobs are still running
   4 #
   5 # Copyright (C) 2017 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 $seq"
  26
  27 status=1 # failure is the default!
  28
  29 _cleanup()
  30 {
  31     _rm_test_img "${TEST_IMG}.mid"
  32     _rm_test_img "${TEST_IMG}.copy"
  33     _cleanup_test_img
  34     _cleanup_qemu
  35 }
  36 trap "_cleanup; exit \$status" 0 1 2 3 15
  37
  38 # get standard environment, filters and checks
  39 . ./common.rc
  40 . ./common.filter
  41 . ./common.qemu
  42
  43 _supported_fmt qcow2
  44 _supported_proto file
  45 _supported_os Linux
  46
  47 size=64M
  48 TEST_IMG="${TEST_IMG}.base" _make_test_img $size
  49
  50 echo
  51 echo === Starting VM ===
  52 echo
  53
  54 qemu_comm_method="qmp"
  55
  56 _launch_qemu \
  57     -drive file="${TEST_IMG}.base",cache=$CACHEMODE,aio=$AIOMODE,driver=$IMGFMT,id=disk
  58 h=$QEMU_HANDLE
  59 _send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" 'return'
  60
  61 echo
  62 echo === Creating backing chain ===
  63 echo
  64
  65 _send_qemu_cmd $h \
  66     "{ 'execute': 'blockdev-snapshot-sync',
  67        'arguments': { 'device': 'disk',
  68                       'snapshot-file': '$TEST_IMG.mid',
  69                       'format': '$IMGFMT',
  70                       'mode': 'absolute-paths' } }" \
  71     "return"
  72
  73 _send_qemu_cmd $h \
  74     "{ 'execute': 'human-monitor-command',
  75        'arguments': { 'command-line':
  76                       'qemu-io disk \"write 0 4M\"' } }" \
  77     "return"
  78
  79 _send_qemu_cmd $h \
  80     "{ 'execute': 'blockdev-snapshot-sync',
  81        'arguments': { 'device': 'disk',
  82                       'snapshot-file': '$TEST_IMG',
  83                       'format': '$IMGFMT',
  84                       'mode': 'absolute-paths' } }" \
  85     "return"
  86
  87 echo
  88 echo === Start commit job and exit qemu ===
  89 echo
  90
  91 # Note that the reference output intentionally includes the 'offset' field in
  92 # BLOCK_JOB_* events for all of the following block jobs. They are predictable
  93 # and any change in the offsets would hint at a bug in the job throttling code.
  94 #
  95 # In order to achieve these predictable offsets, all of the following tests
  96 # use speed=65536. Each job will perform exactly one iteration before it has
  97 # to sleep at least for a second, which is plenty of time for the 'quit' QMP
  98 # command to be received (after receiving the command, the rest runs
  99 # synchronously, so jobs can arbitrarily continue or complete).
 100 #
 101 # The buffer size for commit and streaming is 512k (waiting for 8 seconds after
 102 # the first request), for active commit and mirror it's large enough to cover
 103 # the full 4M, and for backup it's the qcow2 cluster size, which we know is
 104 # 64k. As all of these are at least as large as the speed, we are sure that the
 105 # offset advances exactly once before qemu exits.
 106
 107 _send_qemu_cmd $h \
 108     "{ 'execute': 'block-commit',
 109        'arguments': { 'device': 'disk',
 110                       'base':'$TEST_IMG.base',
 111                       'top': '$TEST_IMG.mid',
 112                       'speed': 65536 } }" \
 113     "return"
 114
 115 # If we don't sleep here 'quit' command races with disk I/O
 116 sleep 0.5
 117
 118 # Ignore the JOB_STATUS_CHANGE events while shutting down the VM. Depending on
 119 # the timing, jobs may or may not transition through a paused state.
 120 _send_qemu_cmd $h "{ 'execute': 'quit' }" "return"
 121 wait=1 _cleanup_qemu | grep -v 'JOB_STATUS_CHANGE'
 122
 123 echo
 124 echo === Start active commit job and exit qemu ===
 125 echo
 126
 127 _launch_qemu \
 128     -drive file="${TEST_IMG}",cache=$CACHEMODE,aio=$AIOMODE,driver=$IMGFMT,id=disk
 129 h=$QEMU_HANDLE
 130 _send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" 'return'
 131
 132 _send_qemu_cmd $h \
 133     "{ 'execute': 'block-commit',
 134        'arguments': { 'device': 'disk',
 135                       'base':'$TEST_IMG.base',
 136                       'speed': 65536 } }" \
 137     "return"
 138
 139 # If we don't sleep here 'quit' command races with disk I/O
 140 sleep 0.5
 141
 142 _send_qemu_cmd $h "{ 'execute': 'quit' }" "return"
 143 wait=1 _cleanup_qemu | grep -v 'JOB_STATUS_CHANGE'
 144
 145 echo
 146 echo === Start mirror job and exit qemu ===
 147 echo
 148
 149 _launch_qemu \
 150     -drive file="${TEST_IMG}",cache=$CACHEMODE,aio=$AIOMODE,driver=$IMGFMT,id=disk
 151 h=$QEMU_HANDLE
 152 _send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" 'return'
 153
 154 _send_qemu_cmd $h \
 155     "{ 'execute': 'drive-mirror',
 156        'arguments': { 'device': 'disk',
 157                       'target': '$TEST_IMG.copy',
 158                       'format': '$IMGFMT',
 159                       'sync': 'full',
 160                       'speed': 65536 } }" \
 161     "return"
 162
 163 # If we don't sleep here 'quit' command may be handled before
 164 # the first mirror iteration is done
 165 sleep 0.5
 166
 167 _send_qemu_cmd $h "{ 'execute': 'quit' }" "return"
 168 wait=1 _cleanup_qemu | grep -v 'JOB_STATUS_CHANGE'
 169
 170 echo
 171 echo === Start backup job and exit qemu ===
 172 echo
 173
 174 _launch_qemu \
 175     -drive file="${TEST_IMG}",cache=$CACHEMODE,aio=$AIOMODE,driver=$IMGFMT,id=disk
 176 h=$QEMU_HANDLE
 177 _send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" 'return'
 178
 179 _send_qemu_cmd $h \
 180     "{ 'execute': 'drive-backup',
 181        'arguments': { 'device': 'disk',
 182                       'target': '$TEST_IMG.copy',
 183                       'format': '$IMGFMT',
 184                       'sync': 'full',
 185                       'speed': 65536 } }" \
 186     "return"
 187
 188 # If we don't sleep here 'quit' command races with disk I/O
 189 sleep 0.5
 190
 191 _send_qemu_cmd $h "{ 'execute': 'quit' }" "return"
 192 wait=1 _cleanup_qemu | grep -v 'JOB_STATUS_CHANGE'
 193
 194 echo
 195 echo === Start streaming job and exit qemu ===
 196 echo
 197
 198 _launch_qemu \
 199     -drive file="${TEST_IMG}",cache=$CACHEMODE,aio=$AIOMODE,driver=$IMGFMT,id=disk
 200 h=$QEMU_HANDLE
 201 _send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" 'return'
 202
 203 _send_qemu_cmd $h \
 204     "{ 'execute': 'block-stream',
 205        'arguments': { 'device': 'disk',
 206                       'speed': 65536 } }" \
 207     "return"
 208
 209 # If we don't sleep here 'quit' command races with disk I/O
 210 sleep 0.5
 211
 212 _send_qemu_cmd $h "{ 'execute': 'quit' }" "return"
 213 wait=1 _cleanup_qemu | grep -v 'JOB_STATUS_CHANGE'
 214
 215 _check_test_img
 216
 217 # success, all done
 218 echo "*** done"
 219 rm -f $seq.full
 220 status=0