Re: [Qemu-devel] [Qemu-block] [PATCH v5 6/6] iotests: extend sleeping time under Valgrind

[Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>]

16.08.2019 4:01, John Snow wrote:
> 
> 
> On 7/19/19 12:30 PM, Andrey Shinkevich wrote:
>> To synchronize the time when QEMU is running longer under the Valgrind,
>> increase the sleeping time in the test 247.
>>
>> Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
>> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>> ---
>>   tests/qemu-iotests/247 | 6 +++++-
>>   1 file changed, 5 insertions(+), 1 deletion(-)
>>
>> diff --git a/tests/qemu-iotests/247 b/tests/qemu-iotests/247
>> index 546a794..c853b73 100755
>> --- a/tests/qemu-iotests/247
>> +++ b/tests/qemu-iotests/247
>> @@ -57,7 +57,11 @@ TEST_IMG="$TEST_IMG.4" _make_test_img $size
>>   {"execute":"block-commit",
>>    "arguments":{"device":"format-4", "top-node": "format-2", "base-node":"format-0", "job-id":"job0"}}
>>   EOF
>> -sleep 1
>> +if [ "${VALGRIND_QEMU}" == "y" ]; then
>> +    sleep 10
>> +else
>> +    sleep 1
>> +fi
>>   echo '{"execute":"quit"}'
>>   ) | $QEMU -qmp stdio -nographic -nodefaults \
>>       -blockdev file,node-name=file-0,filename=$TEST_IMG.0,auto-read-only=on \
>>
> 
> This makes me nervous, though. Won't this race terribly? (Wait, why
> doesn't it race already?)
> 

Hmm, however it works somehow. I'm afraid that everything with "sleep" is definitely racy..
Or what do you mean?

-- 
Best regards,
Vladimir