[libvirt] [PATCH] qemu: Set migration FD blocking

[Michal Privoznik]

On 26.03.2013 17:08, Eric Blake wrote:
> On 03/26/2013 08:55 AM, Michal Privoznik wrote:
>> Since we switched from direct host migration scheme to the one,
>> where we connect to the destination and then just pass a FD to a
>> qemu, we have uncovered a qemu bug. Qemu expects migration FD to
>> block. However, we are passing a nonblocking one which results in
>> cryptic error messages like:
>>
>>   qemu: warning: error while loading state section id 2
>>   load of migration failed
>>
>> The bug is already known to Qemu folks, but we should workaround
>> already released Qemus. Patch has been originally proposed by Stefan
>> Hajnoczi <stefanha at gmail.com>
>> ---
>>  src/qemu/qemu_migration.c | 7 +++++++
>>  1 file changed, 7 insertions(+)
> 
> Thanks for figuring it all out!  I definitely hit this one, while trying
> to help someone on IRC.
> 
> ACK, and definitely 1.0.4 material.
> 

Thanks, pushed to master. I wonder if it should be pushed to stable
branches as well. Doug, Cole - what do you think?

Michal