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Subject: Re: [Qemu-devel] latest rc: virtio-blk hangs forever after migration
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To: Andrey Korolyov <andrey@xdel.ru>
Cc: Amit Shah <amit.shah@redhat.com>, Fam Zheng <famz@redhat.com>, Marcelo Tosatti <mtosatti@redhat.com>, =?UTF-8?B?TWFyY2luIEdpYnXFgmE=?= <m.gibula@beyond.pl>, "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>

Il 22/08/2014 18:44, Andrey Korolyov ha scritto:
>>
>> I`m running 3.10, so patches are not here, will try 3.16 soon. Even if
>> problem will be fixed, it still will be specific for 2.1, earlier
>> releases working well and I`ll bisect at a time.
> 
> Thanks, using 3.16 helped indeed. Though the bug remains as is at 2.1
> on LTS 3.10, should I find the breaking commit, or it is better to
> backport kvm subsystem changes related to apic to 3.10?

I think I'd suggest the latter.  If the fix was brought by those ioapic
patches, the bug has always been latent as far as I could see.

I'm afraid that bisection would be pretty time consuming, also because
the bug didn't reproduce 100% for me (and at some point stopped
reproducing even on 3.10, causing some serious wtf...).

Paolo