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

On 2011/08/01 03:45 AM, Pasi Kärkkäinen wrote:
On Sun, Jul 31, 2011 at 09:07:02PM +0200, Andi Reinbrech wrote:

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

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,

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