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

To: Andi Reinbrech <andi.reinbrech@xxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Kernel 3 Crashes on 4.2 unstable
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: Mon, 1 Aug 2011 04:45:21 +0300
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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

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