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

[Andrey Korolyov]

On Tue, Jul 15, 2014 at 10:52 AM, Andrey Korolyov <and...@xdel.ru> wrote:
> On Tue, Jul 15, 2014 at 9:03 AM, Amit Shah <amit.s...@redhat.com> wrote:
>> On (Sun) 13 Jul 2014 [16:28:56], Andrey Korolyov wrote:
>>> Hello,
>>>
>>> the issue is not specific to the iothread code because generic
>>> virtio-blk also hangs up:
>>
>> Do you know which version works well?  If you could bisect, that'll
>> help a lot.
>>
>> Thanks,
>>                 Amit
>
> Hi,
>
> 2.0 works definitely well. I`ll try to finish bisection today, though
> every step takes about 10 minutes to complete.

Yay! It is even outside of virtio-blk.

commit 9b1786829aefb83f37a8f3135e3ea91c56001b56
Author: Marcelo Tosatti <mtosa...@redhat.com>
Date:   Tue Jun 3 13:34:48 2014 -0300

    kvmclock: Ensure proper env->tsc value for kvmclock_current_nsec calculation

    Ensure proper env->tsc value for kvmclock_current_nsec calculation.

    Reported-by: Marcin Gibuła <m.gib...@beyond.pl>
    Cc: qemu-sta...@nongnu.org
    Signed-off-by: Marcelo Tosatti <mtosa...@redhat.com>
    Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>