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Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap f


From: Dr. David Alan Gilbert
Subject: Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry
Date: Fri, 7 Feb 2014 13:08:23 +0000
User-agent: Mutt/1.5.21 (2010-09-15)

* Stefan Priebe - Profihost AG (address@hidden) wrote:
> Hi,
> 
> Am 07.02.2014 13:44, schrieb Paolo Bonzini:
> > Il 07/02/2014 13:30, Stefan Priebe - Profihost AG ha scritto:
> >>> >> i was able to reproduce with a longer running test VM running the
> >>> google
> >>> >> stress test.
> >>>
> >>> Hmm that's quite a fun set of differences; I think I'd like
> >>> to understand whether the pattern is related to the pattern of what
> >>> the test is doing.
> > 
> > Stefan, can you try to reproduce it:
> 
> first of all i've now a memory image of a VM where i can reproduce it.
> reproducing does NOT work if i boot the VM freshly i need to let it run
> for some hours.
> 
> Then just when the migration finishes there is a short time frame where
> the google stress app reports memory errors than when the migration
> finishes it runs fine again.
> 
> It seems to me it is related to pause and unpause/resume?

But do you have to pause/resume it to cause the error? Have you got cases
where you boot it and then leave it running for a few hours and then it 
fails if you migrate it?

Dave
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK



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