From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Reinbrech Subject: Re: Kernel 3 Crashes on 4.2 unstable Date: Mon, 01 Aug 2011 20:59:41 +0200 Message-ID: <4E36F79D.9010100@darwinistic.com> References: <4E35A7D6.3000403@darwinistic.com> <20110801014520.GQ32373@reaktio.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20110801014520.GQ32373@reaktio.net> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: =?ISO-8859-1?Q?Pasi_K=E4rkk=E4inen?= Cc: "xen-devel@lists.xensource.com" List-Id: xen-devel@lists.xenproject.org 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