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Date: Tue, 29 Jul 2014 18:58:29 +0200
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Subject: Re: [Qemu-devel] latest rc: virtio-blk hangs forever after migration
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To: =?UTF-8?B?TWFyY2luIEdpYnXFgmE=?= <m.gibula@beyond.pl>, Andrey Korolyov <andrey@xdel.ru>
Cc: Amit Shah <amit.shah@redhat.com>, Marcelo Tosatti <mtosatti@redhat.com>, Fam Zheng <famz@redhat.com>, "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>

Il 18/07/2014 10:48, Paolo Bonzini ha scritto:
> 
> It is easy to find out if the "fix" is related to 1 or 2/3: just write
> 
>      if (cpu->kvm_vcpu_dirty) {
>          printf ("do_kvm_cpu_synchronize_state_always: look at 2/3\n");
>          kvm_arch_get_registers(cpu);
>      } else {
>          printf ("do_kvm_cpu_synchronize_state_always: look at 1\n");
>      }
> 
> To further refine between 2 and 3, I suppose you can set a breakpoint on
> cpu_synchronize_all_states and kvm_cpu_exec, and see which is called
> first after cpu_synchronize_all_states_always.

Marcin, have you ever gotten round to doing this?

Paolo