[Pkg-libvirt-maintainers] Bug#676328: Fwd: Bug#676328: libvirt-bin: Migration with network disk failed (Invalid relative path)

[Guido Günther]

On Mon, Jun 11, 2012 at 10:13:13PM +0200, Bastian Scholz wrote:
> Am 2012-06-11 17:17, schrieb Guido Günther:
> >On Mon, Jun 11, 2012 at 02:42:35PM +0200, Bastian Scholz wrote:
> >>Sorry,
> >>
> >>last mail was a little bit too fast. The PATCH for libvirt works
> >>only, if "Cache Mode" is manually set to none. If default, it
> >>fails with
> >>
> >>"error: Unsafe migration: Migration may lead to data corruption if
> >>disks use cache != none"
> >
> >I think that's fine and the intended behaviour. Cache mode should be
> >none to make this work reliably.
> 
> I think it *is* the right behavior at the moment (See below).
> My second mail was only as additional info, that it works only
> with cache=none, and not with default caching mode, like in my
> wrong attached xml.
> 
> >That said the sheepdog driver doesn't
> >handle the cache attribute at all (nbd does for example). Do you
> >know if
> >migration is always safe with sheepdog?
> 
> I ask this on the sheepdog mailinglist a few days back.
> 
> http://lists.wpkg.org/pipermail/sheepdog/2012-June/004549.html
> 
> Short answer: Yes it should, but with cache enabled it is
> not tested at the moment.

Thanks again for the info! So it seems the behviour we implemented
upstream is correct!
Cheers,
 -- Guido