[Qemu-devel] Re: Live migration of x86-64 kvm guests broken?

[Juan Quintela]

Jan Kiszka <address@hidden> wrote:
> Hi,
>
> I'm facing stalled x86-64 guests after live migration when using kvm
> (share disk images). This does not happen with x86-32 guests or when
> disabling kvm. Both qemu and qemu-kvm git heads are affected (recent
> vmstate fixes applied). Running I/O load during the migration (e.g. a
> simple "ls -R /") seems to trigger it reliably.
>
> Can anyone confirm / comment on this? Do we fail to restore some magic
> state that only long mode cares about?

My tests were with badblocks -svw /dev/vda

(qemu.git not qemu-kvm)  I can try if you want.

Later, Juan.