Re: [Xen-devel] 4.7 qemu regression: HVM guests fail to boot from xvda

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Wed, Jun 08, 2016 at 01:13:03PM +0200, Olaf Hering wrote:
> On Wed, Jun 08, George Dunlap wrote:
> 
> > We definitely don't want to be putting this new stuff we're discussing
> > in 4.7.0.  I'd be OK with reverting the original change for the release.
> 
> I'm fine with delaying a change to address the (theoretical) breakage
> introduced by c0c099d.
> 
> What I just learned a few minutes ago is the fact that c0c099d went
> silently into our 4.5 and 4.4 based packages along with XSA-142 fa30003.
> That happend already end of last year. Since I heard no reports about
> non-booting HVM guest after applying the dom0 updates I think its safe

There were. Boris and I reported it a couple of times.

Ah, you meant via internal SuSE bugs!

> to assume that there are very few (if any) domU.cfg outthere which have
> vdev=xvda.

Oracle by default in their product (OVS) has that hard-coded for all
guest configurations it creates. Granted we are still using Xend
and migrating a guest from xm to xl so we have some other issues
to address as well.

> 
> So from this perspective its enough to mention the impact of c0c099d in
> the 4.7 release-note.
> 
> Olaf
> 
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