Re: can't boot 2.6.26-rcX

Bernd Schubert
2008-05-15T10:29:35Z

On Thursday 15 May 2008 09:36:41 Avi Kivity wrote:
> Bernd Schubert wrote:
> > Hello,
> >
> > there is a problem booting 2.6.26-rcX (X=1,2). It stops booting at
> >
> > Calibrating delay using timer specific routine.. 4016.92 BogoMIPS
> > (lpj=8033846)
> >
> > The kvm process then takes 100% of my host CPU.
> >
> > This is with kvm-67 on an AM64-X2-
> >
> > I'm not yet familiar with kvm and debugging. Will a sysrq+t trace of the
> > host show something useful? Or will only full git-bisect help?
>
> Do you have CONFIG_KVM_GUEST or CONFIG_KVM_CLOCK in your config? If so,
> this may be a paravirt problem. Try turning them off and let us know.

Thanks, I had both options enabled. Disabling these makes the
kernel to boot again. But I just run into another bug:

[17180751.908653] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
[17180751.911775] IP: [<ffffffff803dff37>] start_xmit+0x41/0x11a

Going to support with debugging support now to get a better backtrace.

Thanks,
Bernd

--
Bernd Schubert
Q-Leap Networks GmbH