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Subject: Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad
 swap file entry
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To: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: qemu-devel <qemu-devel@nongnu.org>, Alexandre DERUMIER <aderumier@odiso.com>

>>>> do you use xbzrle for live migration ?
>>>
>>> no - i'm really stucked right now with this. Biggest problem i can't
>>> reproduce with test machines ;-(
>>
>> Only being able to test on your production VMs isn't fun;
>> is it possible or you to run an extra program on these VMs - e.g.
>> if we came up with a simple (userland) memory test?
>
> You mean to reproduce?
>
> I already tried https://code.google.com/p/stressapptest/ while migrating
> on a test VM but this works fine.
>
> I also tried running mysql bench while migrating on a test vm and this
> works too ;-(

Have you tried to let test VM run idle for some time before migrating? 
(like 18-24 hours)

Having the same (or very similar) problem, I had bigger luck with 
reproducing it by not using freshly started VMs.

-- 
mg