Re: [Xen-devel] Kernel 3 Crashes on 4.2 unstable

[Andi Reinbrech <andi.reinbrech@xxxxxxxxxxxxxxx>]

On 2011/08/01 03:45 AM, Pasi Kärkkäinen wrote:
> On Sun, Jul 31, 2011 at 09:07:02PM +0200, Andi Reinbrech wrote:
> > Hi,
> >
> > I am unable to pinpoint this problem; on an old core2duo Xen 4.2 and
> > kernel 3.0 as dom0 works, but on a newer i5 (same distro, same packages,
> > all "baselined") the crashes as soon as Xen finishes booting.
> >
> > The crash happens before anything useful is written to the serial
> > console, and causes the machine a complete warm boot with no exceptions
> > or error messages.
> >
> > I have tried nomodeset, but I'm not sure the kernel gets as far as
> > initialising graphics, it may still be in the stage of unpacking the
> > initrd.
> >
> > I would greatly appreciate any pointers to try an help to debug this, or
> > hear from other testers with similar experience.
> >
> > The config of kernel 3.0 I'm using is the "vanilla" fedora rawhide
> > version, 3.0 however, not the latest git rc.
> See http://wiki.xen.org/xenwiki/XenParavirtOps
> the chapter called "Are there more debugging options I could enable to troubleshoot 
> problems with Xen and/or dom0 kernel?"
>
> Make sure you enable all those..
>
> -- Pasi
Thank you Pasi,

Will dig a bit deeper.  I saw that page also has very detailed 
instructions for a custom kernel, I will try and tune a little and 
compile a few versions.  I have a feeling it may very well be graphics 
related.  Will feed back here when I have details.
I have extensive C and hardware/embedded knowledge and would love to get 
a bit more involved in Xen.  Hopefully I can contribute, however small, 
here and there :-)
Kind regards,
Andi

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