tests/qemu-iotests/185

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