Re: [Qemu-devel] Re: Problem with virtio

[Vadim Rozenfeld <vrozenfe@redhat.com>]

On Mon, 2010-09-20 at 22:22 +0200, Frans de Boer wrote:
> On 09/20/2010 07:46 PM, Michael S. Tsirkin wrote:
> > On Sun, Sep 19, 2010 at 11:13:16PM +0200, Frans de Boer wrote:
> >   
> >> On 09/19/2010 05:53 PM, Michael S. Tsirkin wrote:
> >>
> >>     On Sat, Sep 18, 2010 at 11:13:12PM +0200, Frans de Boer wrote:
> >>
> >>
> >>         On 09/17/2010 10:10 AM, Frans de Boer wrote:
> >>
> >>
> >>             On 09/17/2010 01:40 AM, Luiz Capitulino wrote:
> >>
> >>
> >>
> >>                 On Thu, 16 Sep 2010 23:49:51 +0200
> >>                 Frans de Boer <frans@fransdb.nl> wrote:
> >>
> >>
> >>
> >>
> >>
> >>                     Dear reader,
> >>
> >>                     Using qemu-kvm-0.13-rc1 and having the boot partition as if=virtio,
> >>                     causes the attached blue screen when booting Windows XP SP3.
> >>                     Changing the interface to ide (if=ide) and the system boots normal.
> >>
> >>
> >>
> >>
> >>                 Do you have the virtio drivers installed?
> >>
> >>
> >>
> >>
> >>             Yes, everything is working fine when I use the 0.12.5 release.
> >>             Before you ask, I am using the git repository too. Same effect.
> >>
> >>
> >>
> >>
> >>         No suggestions form anyone?
> >>         Again, any compile combination is working under 0.12.5. Starting with
> >>         0.13-rc0/1 the virtio option for the boot disk is not working anymore.
> >>
> >>         Frans.
> >>
> >>
> >>     Could you try bisecting please?
> >>     git bisect start v0.13.0-rc0 v0.12.0
> >>
> >>     will start the bisect process, then you build, test and run
> >>     git bisect good/git bisect bad as appropriate to get the
> >>     new version.
> >>
> >>
> >>
> >> Following your advice, I noticed that the system could not boot when I use the
> >> guest virtio driver. I then switch back to as far as  version 10.0 with the
> >> same bad result. I then remembered that in the past I used the '.raw' format.
> >> Since I am using the qcow2 format (better performance), I never tried if=virtio
> >> for the disk before until I use the 0.13.0-rc1 version. I tried the release tar
> >> file of 0.12.5 and this time with the guest virtio driver, with the same bad
> >> result.
> >> Maybe it is the file format? Maybe the virtio disk driver? I have taken the
> >> virtio drivers from the KVM website.
> >>
Please try this one 
http://people.redhat.com/vrozenfe/VioStorXp32.tar.gz
Cheers,
Vadim.
> >> Frans.
> >>     
> > I got confused, sorry. Let's try to enumerate what works and what does not.
> > Could you tell us which of the following combinations you tried
> > and with what result (works/doesn't)?
> >
> > - virtio + raw + 0.12
> > - virtio + qcow2 + 0.12
> > - ide + qcow2 + 0.12
> >
> > - virtio + raw + 0.13
> > - virtio + qcow2 + 0.13
> > - ide + qcow2 + 0.13
> >
> > Thanks!
> >
> >   
> I used 0.12.5 (git and tarball) and the 0.13-rc1 (git and tarball)
> 
> - virtio + raw + 0.12		ok
> - virtio + qcow2 + 0.12		fail!
> - ide + qcow2 + 0.12		ok
> 
> - virtio + raw + 0.13		fail!
> - virtio + qcow2 + 0.13		fail!
> - ide + qcow2 + 0.13		ok
> 
> Frans.
> 
>