[libvirt] migration fails

Guido Günther agx at sigxcpu.org
Sun May 3 16:34:26 UTC 2009

On Sat, May 02, 2009 at 07:48:50PM +0200, jens wrote:
> Hello,
> I tried to migrate a kvm domain to a second identical machine with the
> command:
> virsh migrate --live dom1 qemu+ssh://second.machine.org/system which
> leads me to an unresponsive virsh on the second machine - 'virsh list'
> just takes forever and qemu wasn't started (the domain was not
> migrated), finally I have to kill libvirtd on the second machine.
> Because I'm new to libvirt I searched the web to find a solution for
> this behavior but without success.
> Please can someone on the list point me to the right direction how I can
> use libvirt to migrate kvm domains?
> I use kernel and kvm-85 with libvirt 0.6.2 on an debian
> unstable system.
> Attached are debug logs generated by the source- and destination-machine.

> 18:58:18.969: debug : qemudDomainGetMemoryBalloon:2469 : balloon reply: 'QEMU 0.10.0 

Does kvm 85 identify as QEMU? If so Daniel's patch to enable migration
for QEMU >= 0.10 might help (I don't have any kvm capable system around
here) and kvm 84 should work too.
 -- Guido

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