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

[Marcelo Tosatti <mtosatti@redhat.com>]

On Fri, Aug 22, 2014 at 10:39:38PM +0400, Andrey Korolyov wrote:
> On Fri, Aug 22, 2014 at 9:45 PM, Marcelo Tosatti <mtosatti@redhat.com> 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 :)

Argh i forgot cpu_sync_all_states. Will resend shortly.