Re: [Qemu-devel] Cutting a new QEMU release

[Anthony Liguori]

Jamie Lokier wrote:
> Riku Voipio wrote:
>   
> > On Tue, Feb 03, 2009 at 02:48:22PM -0600, Anthony Liguori wrote:
> >     
> > > We could decide to cut one by the end of the month.
> > >       
> > This would indeed be really cool.
> >
> >     
> > > .. to decide if there's anything we need to fix before a release.
> > >       
> > At least the OS X (cocoa) host is broken, which is IMHO pretty
> > bad regression. Apart from that I'm not aware of any major regression
> > (wearing arm-linux-user, some arm-softmmu and debian hats).
> >     
>
> I'd say the two qcow2 data corruption bugs are a major regression.
> (Both reported in in another thread).
>
> qemu 0.9.1 has the qcow2 code from kvm-72, which doesn't exhibit
> either of those corruption bugs.  A new release based on current kvm
> userspace would introduce those bugs.  One of the bugs (reported by
> Marc) corrupts a qcow2 image so you can't use it even if you revert to
> an older qemu/kvm.  It's not clear if the other bug causes permanent
> corruption itself, but anything which causes a guest to see the wrong
> data can lead to the guest writing corrupt data elsewhere later on.
>
> Simply reverting the qcow2 code appears to fix those problems, so it
> needn't hold up cutting a release.  That's what I recommend.
>   

Send some patches.

Regards,

Anthony Liguori

> -- Jamie
>
>
>