Re: [Qemu-devel] Unresponsive linux guest once migrated

[Marcin Gibuła]

W dniu 2014-03-27 23:52, Chris Dunlop pisze:
> Hi,
>
> I have a problem where I migrate a linux guest VM, and on the
> receiving side the guest goes to 100% cpu as seen by the host, and
> the guest itself is unresponsive, e.g. not responding to ping etc.
> The only way out I've found is to destroy the guest.
>
> This seems to only happen if the guest has been idle for an extended
> period (e.g. overnight). I've migrated the guest 100 times in a row
> without any problems when the guest has been used "a little" (e.g.
> logging in and looking around, it's not doing anything normally).

Hi,

I've seen very similar problem on our installation. Have you tried to 
run with kvm-clock explicitly disabled (either via no-kvmclock in guest 
kernel or with -kvm-clock in qemu) ?

--
mg