Re: [Qemu-devel] latest rc: virtio-blk hangs forever after migration

[Andrey Korolyov]

On Fri, Aug 22, 2014 at 9:45 PM, Marcelo Tosatti <address@hidden> wrote:
> On Fri, Aug 22, 2014 at 08:44:53PM +0400, Andrey Korolyov wrote:
>> >
>> > 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?
>
> Andrey,
>
> Can you try the patchset (which includes cpu_clean_all_dirty) please?
> It should be equivalent to your proposed patch.
>
>


Just checked case for Windows, bug is still here (twelve continuous
ping-pong migrations between two hosts). Also there is very weird
observation that the if VM stalled, password window renders in a
cripple way just after connection when no VNC region refreshes are
made yet by mouse, vm-is-alive case rendering after-c-a-d prompt
properly. Probably it`ll be easier to check behaviour against Paolo`
patchset for RH kernel, though I`m still in progress with cutting out
the rest to adapt them on top of bare 3.10, for ones with access to
git log it should be easier :)