| #!/usr/bin/env bash |
| # group: rw |
| # |
| # Test exiting qemu while jobs are still running |
| # |
| # Copyright (C) 2017 Red Hat, Inc. |
| # |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 2 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| # |
| |
| # creator |
| owner=kwolf@redhat.com |
| |
| seq=`basename $0` |
| echo "QA output created by $seq" |
| |
| status=1 # failure is the default! |
| |
| _cleanup() |
| { |
| _rm_test_img "${TEST_IMG}.mid" |
| _rm_test_img "${TEST_IMG}.copy" |
| _cleanup_test_img |
| _cleanup_qemu |
| |
| if [ -f "$TEST_DIR/qsd.pid" ]; then |
| kill -SIGKILL "$(cat "$TEST_DIR/qsd.pid")" |
| rm -f "$TEST_DIR/qsd.pid" |
| fi |
| rm -f "$SOCK_DIR/qsd.sock" |
| } |
| trap "_cleanup; exit \$status" 0 1 2 3 15 |
| |
| # get standard environment, filters and checks |
| . ./common.rc |
| . ./common.filter |
| . ./common.qemu |
| |
| _supported_fmt qcow2 |
| _supported_proto file |
| _supported_os Linux |
| |
| size=$((64 * 1048576)) |
| TEST_IMG="${TEST_IMG}.base" _make_test_img $size |
| |
| echo |
| echo === Starting VM === |
| echo |
| |
| qemu_comm_method="qmp" |
| |
| _launch_qemu \ |
| -drive file="${TEST_IMG}.base",cache=$CACHEMODE,aio=$AIOMODE,driver=$IMGFMT,id=disk |
| h=$QEMU_HANDLE |
| _send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" 'return' |
| |
| echo |
| echo === Creating backing chain === |
| echo |
| |
| _send_qemu_cmd $h \ |
| "{ 'execute': 'blockdev-snapshot-sync', |
| 'arguments': { 'device': 'disk', |
| 'snapshot-file': '$TEST_IMG.mid', |
| 'format': '$IMGFMT', |
| 'mode': 'absolute-paths' } }" \ |
| "return" |
| |
| _send_qemu_cmd $h \ |
| "{ 'execute': 'human-monitor-command', |
| 'arguments': { 'command-line': |
| 'qemu-io disk \"write 0 4M\"' } }" \ |
| "return" |
| |
| _send_qemu_cmd $h \ |
| "{ 'execute': 'blockdev-snapshot-sync', |
| 'arguments': { 'device': 'disk', |
| 'snapshot-file': '$TEST_IMG', |
| 'format': '$IMGFMT', |
| 'mode': 'absolute-paths' } }" \ |
| "return" |
| |
| echo |
| echo === Start commit job and exit qemu === |
| echo |
| |
| # Note that the reference output intentionally includes the 'offset' field in |
| # BLOCK_JOB_* events for all of the following block jobs. They are predictable |
| # and any change in the offsets would hint at a bug in the job throttling code. |
| # |
| # In order to achieve these predictable offsets, all of the following tests |
| # use speed=65536. Each job will perform exactly one iteration before it has |
| # to sleep at least for a second, which is plenty of time for the 'quit' QMP |
| # command to be received (after receiving the command, the rest runs |
| # synchronously, so jobs can arbitrarily continue or complete). |
| # |
| # The buffer size for commit and streaming is 512k (waiting for 8 seconds after |
| # the first request), for active commit and mirror it's large enough to cover |
| # the full 4M, and for backup it's the qcow2 cluster size, which we know is |
| # 64k. As all of these are at least as large as the speed, we are sure that the |
| # offset advances exactly once before qemu exits. |
| |
| _send_qemu_cmd $h \ |
| "{ 'execute': 'block-commit', |
| 'arguments': { 'device': 'disk', |
| 'base':'$TEST_IMG.base', |
| 'top': '$TEST_IMG.mid', |
| 'speed': 65536 } }" \ |
| "return" |
| |
| # If we don't sleep here 'quit' command races with disk I/O |
| sleep 0.5 |
| |
| # Ignore the JOB_STATUS_CHANGE events while shutting down the VM. Depending on |
| # the timing, jobs may or may not transition through a paused state. |
| _send_qemu_cmd $h "{ 'execute': 'quit' }" "return" |
| wait=1 _cleanup_qemu | grep -v 'JOB_STATUS_CHANGE' |
| |
| echo |
| echo === Start active commit job and exit qemu === |
| echo |
| |
| _launch_qemu \ |
| -drive file="${TEST_IMG}",cache=$CACHEMODE,aio=$AIOMODE,driver=$IMGFMT,id=disk |
| h=$QEMU_HANDLE |
| _send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" 'return' |
| |
| _send_qemu_cmd $h \ |
| "{ 'execute': 'block-commit', |
| 'arguments': { 'device': 'disk', |
| 'base':'$TEST_IMG.base', |
| 'speed': 65536 } }" \ |
| "return" |
| |
| # If we don't sleep here 'quit' command races with disk I/O |
| sleep 0.5 |
| |
| _send_qemu_cmd $h "{ 'execute': 'quit' }" "return" |
| wait=1 _cleanup_qemu | grep -v 'JOB_STATUS_CHANGE' |
| |
| echo |
| echo === Start mirror job and exit qemu === |
| echo |
| |
| _launch_qemu \ |
| -drive file="${TEST_IMG}",cache=$CACHEMODE,aio=$AIOMODE,driver=$IMGFMT,id=disk |
| h=$QEMU_HANDLE |
| _send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" 'return' |
| |
| _send_qemu_cmd $h \ |
| "{ 'execute': 'drive-mirror', |
| 'arguments': { 'device': 'disk', |
| 'target': '$TEST_IMG.copy', |
| 'format': '$IMGFMT', |
| 'sync': 'full', |
| 'speed': 65536 } }" \ |
| "return" |
| |
| # If we don't sleep here 'quit' command may be handled before |
| # the first mirror iteration is done |
| sleep 0.5 |
| |
| _send_qemu_cmd $h "{ 'execute': 'quit' }" "return" |
| wait=1 _cleanup_qemu | grep -v 'JOB_STATUS_CHANGE' |
| |
| echo |
| echo === Start backup job and exit qemu === |
| echo |
| |
| _launch_qemu \ |
| -drive file="${TEST_IMG}",cache=$CACHEMODE,aio=$AIOMODE,driver=$IMGFMT,id=disk |
| h=$QEMU_HANDLE |
| _send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" 'return' |
| |
| _send_qemu_cmd $h \ |
| "{ 'execute': 'drive-backup', |
| 'arguments': { 'device': 'disk', |
| 'target': '$TEST_IMG.copy', |
| 'format': '$IMGFMT', |
| 'sync': 'full', |
| 'speed': 65536, |
| 'x-perf': {'max-chunk': 65536} } }" \ |
| "return" |
| |
| # If we don't sleep here 'quit' command races with disk I/O |
| sleep 0.5 |
| |
| _send_qemu_cmd $h "{ 'execute': 'quit' }" "return" |
| wait=1 _cleanup_qemu | grep -v 'JOB_STATUS_CHANGE' |
| |
| echo |
| echo === Start streaming job and exit qemu === |
| echo |
| |
| _launch_qemu \ |
| -drive file="${TEST_IMG}",cache=$CACHEMODE,aio=$AIOMODE,driver=$IMGFMT,id=disk |
| h=$QEMU_HANDLE |
| _send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" 'return' |
| |
| _send_qemu_cmd $h \ |
| "{ 'execute': 'block-stream', |
| 'arguments': { 'device': 'disk', |
| 'speed': 65536 } }" \ |
| "return" |
| |
| # If we don't sleep here 'quit' command races with disk I/O |
| sleep 0.5 |
| |
| _send_qemu_cmd $h "{ 'execute': 'quit' }" "return" |
| wait=1 _cleanup_qemu | grep -v 'JOB_STATUS_CHANGE' |
| |
| _check_test_img |
| |
| echo |
| echo === Start mirror to throttled QSD and exit qemu === |
| echo |
| |
| # Mirror to a throttled QSD instance (so that qemu cannot drain the |
| # throttling), wait for READY, then write some data to the device, |
| # and then quit qemu. |
| # (qemu should force-cancel the job and not wait for the data to be |
| # written to the target.) |
| |
| _make_test_img $size |
| |
| # Will be used by this and the next case |
| set_up_throttled_qsd() { |
| $QSD \ |
| --object throttle-group,id=thrgr,limits.bps-total=1048576 \ |
| --blockdev null-co,node-name=null,size=$size \ |
| --blockdev throttle,node-name=throttled,throttle-group=thrgr,file=null \ |
| --nbd-server addr.type=unix,addr.path="$SOCK_DIR/qsd.sock" \ |
| --export nbd,id=exp,node-name=throttled,name=target,writable=true \ |
| --pidfile "$TEST_DIR/qsd.pid" \ |
| --daemonize |
| } |
| |
| set_up_throttled_qsd |
| |
| # Need a virtio-blk device so that qemu-io writes will not block the monitor |
| _launch_qemu \ |
| --blockdev file,node-name=source-proto,filename="$TEST_IMG" \ |
| --blockdev qcow2,node-name=source-fmt,file=source-proto \ |
| --device virtio-blk,id=vblk,drive=source-fmt \ |
| --blockdev "{\"driver\": \"nbd\", |
| \"node-name\": \"target\", |
| \"server\": { |
| \"type\": \"unix\", |
| \"path\": \"$SOCK_DIR/qsd.sock\" |
| }, |
| \"export\": \"target\"}" |
| |
| h=$QEMU_HANDLE |
| _send_qemu_cmd $h '{"execute": "qmp_capabilities"}' 'return' |
| |
| # Use sync=top, so the first pass will not copy the whole image |
| _send_qemu_cmd $h \ |
| '{"execute": "blockdev-mirror", |
| "arguments": { |
| "job-id": "mirror", |
| "device": "source-fmt", |
| "target": "target", |
| "sync": "top" |
| }}' \ |
| 'return' \ |
| | grep -v JOB_STATUS_CHANGE # Ignore these events during creation |
| |
| # This too will be used by this and the next case |
| # $1: QEMU handle |
| # $2: Image size |
| wait_for_job_and_quit() { |
| h=$1 |
| size=$2 |
| |
| # List of expected events |
| capture_events='BLOCK_JOB_READY JOB_STATUS_CHANGE' |
| _wait_event $h 'BLOCK_JOB_READY' |
| QEMU_EVENTS= # Ignore all JOB_STATUS_CHANGE events that came before READY |
| |
| # Write something to the device for post-READY mirroring. Write it in |
| # blocks matching the cluster size, each spaced one block apart, so |
| # that the mirror job will have to spawn one request per cluster. |
| # Because the number of concurrent requests is limited (to 16), this |
| # limits the number of bytes concurrently in flight, which speeds up |
| # cancelling the job (in-flight requests still are waited for). |
| # To limit the number of bytes in flight, we could alternatively pass |
| # something for blockdev-mirror's @buf-size parameter, but |
| # block-commit does not have such a parameter, so we need to figure |
| # something out that works for both. |
| |
| cluster_size=65536 |
| step=$((cluster_size * 2)) |
| |
| echo '--- Writing data to the virtio-blk device ---' |
| |
| for ofs in $(seq 0 $step $((size - step))); do |
| qemu_io_cmd="qemu-io -d vblk/virtio-backend " |
| qemu_io_cmd+="\\\"aio_write $ofs $cluster_size\\\"" |
| |
| # Do not include these requests in the reference output |
| # (it's just too much) |
| silent=yes _send_qemu_cmd $h \ |
| "{\"execute\": \"human-monitor-command\", |
| \"arguments\": { |
| \"command-line\": \"$qemu_io_cmd\" |
| }}" \ |
| 'return' |
| done |
| |
| # Wait until the job's length is updated to reflect the write requests |
| |
| # We have written to half of the device, so this is the expected job length |
| final_len=$((size / 2)) |
| timeout=100 # unit: 0.1 seconds |
| while true; do |
| len=$( |
| _send_qemu_cmd $h \ |
| '{"execute": "query-block-jobs"}' \ |
| 'return.*"len": [0-9]\+' \ |
| | grep 'return.*"len": [0-9]\+' \ |
| | sed -e 's/.*"len": \([0-9]\+\).*/\1/' |
| ) |
| if [ "$len" -eq "$final_len" ]; then |
| break |
| fi |
| timeout=$((timeout - 1)) |
| if [ "$timeout" -eq 0 ]; then |
| echo "ERROR: Timeout waiting for job to reach len=$final_len" |
| break |
| fi |
| sleep 0.1 |
| done |
| |
| sleep 1 |
| |
| # List of expected events |
| capture_events='BLOCK_JOB_CANCELLED JOB_STATUS_CHANGE SHUTDOWN' |
| |
| _send_qemu_cmd $h \ |
| '{"execute": "quit"}' \ |
| 'return' |
| |
| _wait_event $h 'SHUTDOWN' |
| _wait_event $h 'JOB_STATUS_CHANGE' # standby |
| _wait_event $h 'JOB_STATUS_CHANGE' # ready |
| _wait_event $h 'JOB_STATUS_CHANGE' # standby |
| _wait_event $h 'JOB_STATUS_CHANGE' # ready |
| _wait_event $h 'JOB_STATUS_CHANGE' # aborting |
| # Filter the offset (depends on when exactly `quit` was issued) |
| _wait_event $h 'BLOCK_JOB_CANCELLED' \ |
| | sed -e 's/"offset": [0-9]\+/"offset": (filtered)/' |
| _wait_event $h 'JOB_STATUS_CHANGE' # concluded |
| _wait_event $h 'JOB_STATUS_CHANGE' # null |
| |
| wait=yes _cleanup_qemu |
| |
| kill -SIGTERM "$(cat "$TEST_DIR/qsd.pid")" |
| } |
| |
| wait_for_job_and_quit $h $size |
| |
| echo |
| echo === Start active commit to throttled QSD and exit qemu === |
| echo |
| |
| # Same as the above, but instead of mirroring, do an active commit |
| |
| _make_test_img $size |
| |
| set_up_throttled_qsd |
| |
| _launch_qemu \ |
| --blockdev "{\"driver\": \"nbd\", |
| \"node-name\": \"target\", |
| \"server\": { |
| \"type\": \"unix\", |
| \"path\": \"$SOCK_DIR/qsd.sock\" |
| }, |
| \"export\": \"target\"}" \ |
| --blockdev file,node-name=source-proto,filename="$TEST_IMG" \ |
| --blockdev qcow2,node-name=source-fmt,file=source-proto,backing=target \ |
| --device virtio-blk,id=vblk,drive=source-fmt |
| |
| h=$QEMU_HANDLE |
| _send_qemu_cmd $h '{"execute": "qmp_capabilities"}' 'return' |
| |
| _send_qemu_cmd $h \ |
| '{"execute": "block-commit", |
| "arguments": { |
| "job-id": "commit", |
| "device": "source-fmt" |
| }}' \ |
| 'return' \ |
| | grep -v JOB_STATUS_CHANGE # Ignore these events during creation |
| |
| wait_for_job_and_quit $h $size |
| |
| # success, all done |
| echo "*** done" |
| rm -f $seq.full |
| status=0 |
