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From: "Denis V. Lunev" <den@openvz.org>
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Date: Tue, 14 Jun 2016 11:34:12 +0300
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Subject: Re: [Qemu-devel] [PATCH 1/1] hmp: acquire aio_context in hmp_qemu_io
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To: Kevin Wolf <kwolf@redhat.com>
Cc: qemu-devel@nongnu.org, Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>, Paolo Bonzini <pbonzini@redhat.com>

On 06/08/2016 02:23 PM, Kevin Wolf wrote:
> Am 08.06.2016 um 11:39 hat Denis V. Lunev geschrieben:
>> From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>>
>> Acquire aio context before run command, this is mandatory for unit tests.
>>
>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>> Signed-off-by: Denis V. Lunev <den@openvz.org>
>> CC: Kevin Wolf <kwolf@redhat.com>
>> CC: Paolo Bonzini <pbonzini@redhat.com>
> Looks right to me, but why "mandatory for unit tests"? Does this fix an
> observable bug in unit tests? If so, we should be more specific in the
> commit message.
>
> But in fact, I would only expect it to make a difference for dataplane
> and I don't think we have test cases that use both the 'qemu-io' HMP
> command and dataplane.
>
> Kevin
the problem is that it is usually difficult to understand that
the problem is in locking and find where the locking is missed.
Here we do have a place, which is used by unit testing, with
a locking missed.

May be now tests are not failing, but IMHO these tests MUST
be fixed to accommodate future changes and thus this patch
is mandatory for them.

Den