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Date: Sat, 29 Dec 2012 15:00:37 +0100
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Subject: Re: [Qemu-devel] setting migrate_downtime results in halted vm
	(qemu 1.3)
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To: Stefan Priebe <s.priebe@profihost.ag>
Cc: qemu-devel <qemu-devel@nongnu.org>, Alexandre DERUMIER <aderumier@odiso.com>, Juan Quintela <quintela@redhat.com>

Il 28/12/2012 20:03, Stefan Priebe ha scritto:
> Hi Paolo,
> 
> Am 28.12.2012 18:53, schrieb Paolo Bonzini:
>> Il 28/12/2012 08:05, Alexandre DERUMIER ha scritto:
>>> Hi list,
>>> After discuss with Stefan Yesterday here some more info:
>>>
>>> (this is for stable qemu 1.3, it was working fine with qemu 1.2)
>>>
>>> The problem seem that whesettings a migrate_set_downtime to 1sec,
>>>
>>> the transfert of the vm seem to send all the memory of the vm in 1
>>> step, and not by increment.
>>> So the downtime is really huge , 90000ms for 1GB memory.
>>
>> Can you try commit bde54c08b4854aceee3dee25121a2b835cb81166?
> 
> i cherry picked that one on top of 1.3 sadly it does not help. VM halts,
> monitor socket is no longer available kvm process is running with 100%
> CPU on source side.

Can you please test master and, if it works, bisect it in reverse?
(That is, mark "bad" if it works, "good" if it fails).

Paolo