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

[Paolo Bonzini <pbonzini@redhat.com>]

Il 07/02/2014 14:04, Stefan Priebe - Profihost AG ha scritto:
> first of all i've now a memory image of a VM where i can reproduce it.

You mean you start that VM with -incoming 'exec:cat /path/to/vm.img'? 
But google stress test doesn't report any error until you start 
migration _and_ it finishes?

That sounds good enough.  Can you upload the image somewhere (doesn't 
have to be a public place, you can contact David or others offlist)?

> 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?
>
>> > - with Unix migration between two QEMUs on the same host
> now tested => same issue
>
>> > - with different hosts
> already tested => same issue
>
>> > - with a different network (e.g. just a cross cable between two machines)
> already tested => same issue

Another test:

- start the VM with -S, migrate, do errors appear on the destination?

Thanks,

Paolo