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11a82d14 1#!/usr/bin/env bash
9dd003a9 2# group: rw
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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
23owner=kwolf@redhat.com
24
25seq=`basename $0`
26echo "QA output created by $seq"
27
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28status=1 # failure is the default!
29
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30_cleanup()
31{
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32 _rm_test_img "${TEST_IMG}.mid"
33 _rm_test_img "${TEST_IMG}.copy"
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34 _cleanup_test_img
35 _cleanup_qemu
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36
37 if [ -f "$TEST_DIR/qsd.pid" ]; then
38 kill -SIGKILL "$(cat "$TEST_DIR/qsd.pid")"
39 rm -f "$TEST_DIR/qsd.pid"
40 fi
41 rm -f "$SOCK_DIR/qsd.sock"
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42}
43trap "_cleanup; exit \$status" 0 1 2 3 15
44
45# get standard environment, filters and checks
46. ./common.rc
47. ./common.filter
48. ./common.qemu
49
50_supported_fmt qcow2
51_supported_proto file
52_supported_os Linux
53
ad6fe44b 54size=$((64 * 1048576))
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55TEST_IMG="${TEST_IMG}.base" _make_test_img $size
56
57echo
58echo === Starting VM ===
59echo
60
61qemu_comm_method="qmp"
62
63_launch_qemu \
8dff69b9 64 -drive file="${TEST_IMG}.base",cache=$CACHEMODE,aio=$AIOMODE,driver=$IMGFMT,id=disk
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65h=$QEMU_HANDLE
66_send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" 'return'
67
68echo
69echo === Creating backing chain ===
70echo
71
72_send_qemu_cmd $h \
73 "{ 'execute': 'blockdev-snapshot-sync',
74 'arguments': { 'device': 'disk',
75 'snapshot-file': '$TEST_IMG.mid',
76 'format': '$IMGFMT',
77 'mode': 'absolute-paths' } }" \
78 "return"
79
80_send_qemu_cmd $h \
81 "{ 'execute': 'human-monitor-command',
82 'arguments': { 'command-line':
83 'qemu-io disk \"write 0 4M\"' } }" \
84 "return"
85
86_send_qemu_cmd $h \
87 "{ 'execute': 'blockdev-snapshot-sync',
88 'arguments': { 'device': 'disk',
89 'snapshot-file': '$TEST_IMG',
90 'format': '$IMGFMT',
91 'mode': 'absolute-paths' } }" \
92 "return"
93
94echo
95echo === Start commit job and exit qemu ===
96echo
97
98# Note that the reference output intentionally includes the 'offset' field in
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99# BLOCK_JOB_* events for all of the following block jobs. They are predictable
100# and any change in the offsets would hint at a bug in the job throttling code.
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101#
102# In order to achieve these predictable offsets, all of the following tests
103# use speed=65536. Each job will perform exactly one iteration before it has
104# to sleep at least for a second, which is plenty of time for the 'quit' QMP
105# command to be received (after receiving the command, the rest runs
106# synchronously, so jobs can arbitrarily continue or complete).
107#
108# The buffer size for commit and streaming is 512k (waiting for 8 seconds after
109# the first request), for active commit and mirror it's large enough to cover
110# the full 4M, and for backup it's the qcow2 cluster size, which we know is
111# 64k. As all of these are at least as large as the speed, we are sure that the
4c7e813c 112# offset advances exactly once before qemu exits.
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113
114_send_qemu_cmd $h \
115 "{ 'execute': 'block-commit',
116 'arguments': { 'device': 'disk',
117 'base':'$TEST_IMG.base',
118 'top': '$TEST_IMG.mid',
119 'speed': 65536 } }" \
120 "return"
121
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122# If we don't sleep here 'quit' command races with disk I/O
123sleep 0.5
124
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125# Ignore the JOB_STATUS_CHANGE events while shutting down the VM. Depending on
126# the timing, jobs may or may not transition through a paused state.
24575bfa 127_send_qemu_cmd $h "{ 'execute': 'quit' }" "return"
1dac83f1 128wait=1 _cleanup_qemu | grep -v 'JOB_STATUS_CHANGE'
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129
130echo
131echo === Start active commit job and exit qemu ===
132echo
133
134_launch_qemu \
8dff69b9 135 -drive file="${TEST_IMG}",cache=$CACHEMODE,aio=$AIOMODE,driver=$IMGFMT,id=disk
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136h=$QEMU_HANDLE
137_send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" 'return'
138
139_send_qemu_cmd $h \
140 "{ 'execute': 'block-commit',
141 'arguments': { 'device': 'disk',
142 'base':'$TEST_IMG.base',
143 'speed': 65536 } }" \
144 "return"
145
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146# If we don't sleep here 'quit' command races with disk I/O
147sleep 0.5
148
24575bfa 149_send_qemu_cmd $h "{ 'execute': 'quit' }" "return"
1dac83f1 150wait=1 _cleanup_qemu | grep -v 'JOB_STATUS_CHANGE'
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151
152echo
153echo === Start mirror job and exit qemu ===
154echo
155
156_launch_qemu \
8dff69b9 157 -drive file="${TEST_IMG}",cache=$CACHEMODE,aio=$AIOMODE,driver=$IMGFMT,id=disk
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158h=$QEMU_HANDLE
159_send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" 'return'
160
161_send_qemu_cmd $h \
162 "{ 'execute': 'drive-mirror',
163 'arguments': { 'device': 'disk',
164 'target': '$TEST_IMG.copy',
165 'format': '$IMGFMT',
166 'sync': 'full',
167 'speed': 65536 } }" \
168 "return"
169
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170# If we don't sleep here 'quit' command may be handled before
171# the first mirror iteration is done
172sleep 0.5
173
24575bfa 174_send_qemu_cmd $h "{ 'execute': 'quit' }" "return"
1dac83f1 175wait=1 _cleanup_qemu | grep -v 'JOB_STATUS_CHANGE'
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176
177echo
178echo === Start backup job and exit qemu ===
179echo
180
181_launch_qemu \
8dff69b9 182 -drive file="${TEST_IMG}",cache=$CACHEMODE,aio=$AIOMODE,driver=$IMGFMT,id=disk
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183h=$QEMU_HANDLE
184_send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" 'return'
185
186_send_qemu_cmd $h \
187 "{ 'execute': 'drive-backup',
188 'arguments': { 'device': 'disk',
189 'target': '$TEST_IMG.copy',
190 'format': '$IMGFMT',
191 'sync': 'full',
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192 'speed': 65536,
193 'x-perf': {'max-chunk': 65536} } }" \
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194 "return"
195
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196# If we don't sleep here 'quit' command races with disk I/O
197sleep 0.5
198
24575bfa 199_send_qemu_cmd $h "{ 'execute': 'quit' }" "return"
1dac83f1 200wait=1 _cleanup_qemu | grep -v 'JOB_STATUS_CHANGE'
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201
202echo
203echo === Start streaming job and exit qemu ===
204echo
205
206_launch_qemu \
8dff69b9 207 -drive file="${TEST_IMG}",cache=$CACHEMODE,aio=$AIOMODE,driver=$IMGFMT,id=disk
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208h=$QEMU_HANDLE
209_send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" 'return'
210
211_send_qemu_cmd $h \
212 "{ 'execute': 'block-stream',
213 'arguments': { 'device': 'disk',
214 'speed': 65536 } }" \
215 "return"
216
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217# If we don't sleep here 'quit' command races with disk I/O
218sleep 0.5
219
24575bfa 220_send_qemu_cmd $h "{ 'execute': 'quit' }" "return"
1dac83f1 221wait=1 _cleanup_qemu | grep -v 'JOB_STATUS_CHANGE'
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222
223_check_test_img
224
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225echo
226echo === Start mirror to throttled QSD and exit qemu ===
227echo
228
229# Mirror to a throttled QSD instance (so that qemu cannot drain the
230# throttling), wait for READY, then write some data to the device,
231# and then quit qemu.
232# (qemu should force-cancel the job and not wait for the data to be
233# written to the target.)
234
235_make_test_img $size
236
237# Will be used by this and the next case
238set_up_throttled_qsd() {
239 $QSD \
240 --object throttle-group,id=thrgr,limits.bps-total=1048576 \
241 --blockdev null-co,node-name=null,size=$size \
242 --blockdev throttle,node-name=throttled,throttle-group=thrgr,file=null \
243 --nbd-server addr.type=unix,addr.path="$SOCK_DIR/qsd.sock" \
244 --export nbd,id=exp,node-name=throttled,name=target,writable=true \
245 --pidfile "$TEST_DIR/qsd.pid" \
246 --daemonize
247}
248
249set_up_throttled_qsd
250
251# Need a virtio-blk device so that qemu-io writes will not block the monitor
252_launch_qemu \
253 --blockdev file,node-name=source-proto,filename="$TEST_IMG" \
254 --blockdev qcow2,node-name=source-fmt,file=source-proto \
255 --device virtio-blk,id=vblk,drive=source-fmt \
256 --blockdev "{\"driver\": \"nbd\",
257 \"node-name\": \"target\",
258 \"server\": {
259 \"type\": \"unix\",
260 \"path\": \"$SOCK_DIR/qsd.sock\"
261 },
262 \"export\": \"target\"}"
263
264h=$QEMU_HANDLE
265_send_qemu_cmd $h '{"execute": "qmp_capabilities"}' 'return'
266
267# Use sync=top, so the first pass will not copy the whole image
268_send_qemu_cmd $h \
269 '{"execute": "blockdev-mirror",
270 "arguments": {
271 "job-id": "mirror",
272 "device": "source-fmt",
273 "target": "target",
274 "sync": "top"
275 }}' \
276 'return' \
277 | grep -v JOB_STATUS_CHANGE # Ignore these events during creation
278
279# This too will be used by this and the next case
280# $1: QEMU handle
281# $2: Image size
282wait_for_job_and_quit() {
283 h=$1
284 size=$2
285
286 # List of expected events
287 capture_events='BLOCK_JOB_READY JOB_STATUS_CHANGE'
288 _wait_event $h 'BLOCK_JOB_READY'
289 QEMU_EVENTS= # Ignore all JOB_STATUS_CHANGE events that came before READY
290
291 # Write something to the device for post-READY mirroring. Write it in
292 # blocks matching the cluster size, each spaced one block apart, so
293 # that the mirror job will have to spawn one request per cluster.
294 # Because the number of concurrent requests is limited (to 16), this
295 # limits the number of bytes concurrently in flight, which speeds up
296 # cancelling the job (in-flight requests still are waited for).
297 # To limit the number of bytes in flight, we could alternatively pass
298 # something for blockdev-mirror's @buf-size parameter, but
299 # block-commit does not have such a parameter, so we need to figure
300 # something out that works for both.
301
302 cluster_size=65536
303 step=$((cluster_size * 2))
304
305 echo '--- Writing data to the virtio-blk device ---'
306
307 for ofs in $(seq 0 $step $((size - step))); do
308 qemu_io_cmd="qemu-io -d vblk/virtio-backend "
309 qemu_io_cmd+="\\\"aio_write $ofs $cluster_size\\\""
310
311 # Do not include these requests in the reference output
312 # (it's just too much)
313 silent=yes _send_qemu_cmd $h \
314 "{\"execute\": \"human-monitor-command\",
315 \"arguments\": {
316 \"command-line\": \"$qemu_io_cmd\"
317 }}" \
318 'return'
319 done
320
321 # Wait until the job's length is updated to reflect the write requests
322
323 # We have written to half of the device, so this is the expected job length
324 final_len=$((size / 2))
325 timeout=100 # unit: 0.1 seconds
326 while true; do
327 len=$(
328 _send_qemu_cmd $h \
329 '{"execute": "query-block-jobs"}' \
330 'return.*"len": [0-9]\+' \
331 | grep 'return.*"len": [0-9]\+' \
332 | sed -e 's/.*"len": \([0-9]\+\).*/\1/'
333 )
334 if [ "$len" -eq "$final_len" ]; then
335 break
336 fi
337 timeout=$((timeout - 1))
338 if [ "$timeout" -eq 0 ]; then
339 echo "ERROR: Timeout waiting for job to reach len=$final_len"
340 break
341 fi
342 sleep 0.1
343 done
344
345 sleep 1
346
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347 # List of expected events
348 capture_events='BLOCK_JOB_CANCELLED JOB_STATUS_CHANGE SHUTDOWN'
349
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350 _send_qemu_cmd $h \
351 '{"execute": "quit"}' \
352 'return'
353
ad6fe44b 354 _wait_event $h 'SHUTDOWN'
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355 _wait_event $h 'JOB_STATUS_CHANGE' # standby
356 _wait_event $h 'JOB_STATUS_CHANGE' # ready
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357 _wait_event $h 'JOB_STATUS_CHANGE' # standby
358 _wait_event $h 'JOB_STATUS_CHANGE' # ready
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359 _wait_event $h 'JOB_STATUS_CHANGE' # aborting
360 # Filter the offset (depends on when exactly `quit` was issued)
361 _wait_event $h 'BLOCK_JOB_CANCELLED' \
362 | sed -e 's/"offset": [0-9]\+/"offset": (filtered)/'
363 _wait_event $h 'JOB_STATUS_CHANGE' # concluded
364 _wait_event $h 'JOB_STATUS_CHANGE' # null
365
366 wait=yes _cleanup_qemu
367
368 kill -SIGTERM "$(cat "$TEST_DIR/qsd.pid")"
369}
370
371wait_for_job_and_quit $h $size
372
373echo
374echo === Start active commit to throttled QSD and exit qemu ===
375echo
376
377# Same as the above, but instead of mirroring, do an active commit
378
379_make_test_img $size
380
381set_up_throttled_qsd
382
383_launch_qemu \
384 --blockdev "{\"driver\": \"nbd\",
385 \"node-name\": \"target\",
386 \"server\": {
387 \"type\": \"unix\",
388 \"path\": \"$SOCK_DIR/qsd.sock\"
389 },
390 \"export\": \"target\"}" \
391 --blockdev file,node-name=source-proto,filename="$TEST_IMG" \
392 --blockdev qcow2,node-name=source-fmt,file=source-proto,backing=target \
393 --device virtio-blk,id=vblk,drive=source-fmt
394
395h=$QEMU_HANDLE
396_send_qemu_cmd $h '{"execute": "qmp_capabilities"}' 'return'
397
398_send_qemu_cmd $h \
399 '{"execute": "block-commit",
400 "arguments": {
401 "job-id": "commit",
402 "device": "source-fmt"
403 }}' \
404 'return' \
405 | grep -v JOB_STATUS_CHANGE # Ignore these events during creation
406
407wait_for_job_and_quit $h $size
408
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409# success, all done
410echo "*** done"
411rm -f $seq.full
412status=0