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From: Paolo Bonzini <pbonzini@redhat.com>
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Date: Fri, 17 Jul 2015 02:17:25 +0200
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Subject: Re: [Qemu-devel] [PATCH v2 0/3] AioContext: ctx->dispatching is
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To: "Richard W.M. Jones" <rjones@redhat.com>
Cc: kwolf@redhat.com, lersek@redhat.com, qemu-devel@nongnu.org, stefanha@redhat.com



On 17/07/2015 00:06, Paolo Bonzini wrote:
> 
> 
> On 16/07/2015 21:05, Richard W.M. Jones wrote:
>> Sorry to spoil things, but I'm still seeing this bug, although it is
>> now a lot less frequent with your patch.  I would estimate it happens
>> more often than 1 in 5 runs with qemu.git, and probably 1 in 200 runs
>> with qemu.git + the v2 patch series.
>>
>> It's the exact same hang in both cases.
>>
>> Is it possible that this patch doesn't completely close any race?
>>
>> Still, it is an improvement, so there is that.
> 
> I would guess instead that there are two separate bugs, but it's not
> impossible that it's still there.

Reproduced after ~80 runs...

Paolo