Re: [Qemu-devel] qemu and qemu.git -> Migration + disk stress introduces qcow2 corruptions

[Michael S. Tsirkin]

On Wed, Nov 09, 2011 at 11:35:54AM -0600, Anthony Liguori wrote:
> On 11/09/2011 11:02 AM, Avi Kivity wrote:
> >On 11/09/2011 06:39 PM, Anthony Liguori wrote:
> >>
> >>Migration with qcow2 is not a supported feature for 1.0.  Migration is
> >>only supported with raw images using coherent shared storage[1].
> >>
> >>[1] NFS is only coherent with close-to-open which right now is not
> >>good enough for migration.
> >
> >Say what?
> 
> Due to block format probing, we read at least the first sector of
> the disk during start up.

A simple solution is not to do any probing before the VM is first
started on the incoming path.

Any issues with this?

-- 
MST