Re: [GIT PULL] KVM fixes for 2.6.26-rc7

[Marcelo Tosatti <mtosatti@redhat.com>]

On Wed, Jun 25, 2008 at 08:54:44PM +0200, Bernd Schubert wrote:
> On Wednesday 25 June 2008, Marcelo Tosatti wrote:
> > On Wed, Jun 25, 2008 at 06:13:05PM +0200, Bernd Schubert wrote:
> > > Avi Kivity wrote:
> > > > Linus, please pull from the repo and branch at:
> > > >
> > > >   git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm.git
> > > > kvm-updates-2.6.26
> > >
> > > I just pulled from Linus and now it stalls to boot at
> > >
> > > [    0.616031] pnp: PnP ACPI init
> > > [    0.628031] ACPI: bus type pnp registered
> > > [    0.640031] pnp: PnP ACPI: found 7 devices
> > > [    0.652031] ACPI: ACPI bus type pnp unregistered
> > > [    0.660031] SCSI subsystem initialized
> > > [    0.664031] PCI: Using ACPI for IRQ routing
> > > [    0.692031] PCI-GART: No AMD northbridge found.
> > >
> > > The kvm process is at 100% time. Taking the many problems I already
> > > reported about, 2.6.26 probably will be entirely broken regarding kvm :(
> >
> > Do you have CONFIG_KVM_CLOCK or CONFIG_KVM_GUEST enabled ?
> >
> > There is a known problem with CONFIG_KVM_GUEST being worked on.
> >
> > Can you provide this details, and pinpoint which option is the culprit?
> 
> Just found out, it is CONFIG_KVM_CLOCK. With CONFIG_KVM_CLOCK=y it does boot 
> fine.

You mean with CONFIG_KVM_CLOCK=n it boots fine, I suppose.

You should upgrade the guest kernel to the git tree, kvm clock changes
break compatibility with older kernels.