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qemu-iotests: fix 185

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185 can sometimes produce wrong output like this:

    185 2s ... - output mismatch (see 185.out.bad)
    --- /work/src/qemu/master/tests/qemu-iotests/185.out    2017-07-14 \
        15:14:29.520343805 +0300
    +++ 185.out.bad 2017-08-07 16:51:02.231922900 +0300
    @@ -37,7 +37,7 @@
     {"return": {}}
     {"return": {}}
     {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, \
         "event": "SHUTDOWN", "data": {"guest": false}}
    -{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, \
        "event": "BLOCK_JOB_CANCELLED", "data": {"device": "disk", \
            "len": 4194304, "offset": 4194304, "speed": 65536, "type": \
                "mirror"}}
    +{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, \
        "event": "BLOCK_JOB_CANCELLED", "data": {"device": "disk", \
            "len": 0, "offset": 0, "speed": 65536, "type": "mirror"}}

     === Start backup job and exit qemu ===

    Failures: 185
    Failed 1 of 1 tests

This is because, under heavy load, the quit can happen before the first
iteration of the mirror request has occurred.  To make sure we've had
time to iterate, let's just add a sleep for 0.5 seconds before quitting.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2017-08-09 18:17:57 +03:00 committed by Kevin Wolf
parent 2b218f5dbc
commit 8565c3ab53
1 changed files with 4 additions and 0 deletions
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4
tests/qemu-iotests/185
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@ -156,6 +156,10 @@ _send_qemu_cmd $h \
'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