From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?ISO-8859-1?Q?J=E9r=F4me_Petazzoni?= Subject: Re: xen problem with save/restore Date: Fri, 03 Dec 2004 18:48:26 +0100 Message-ID: <41B0A6EA.3000402@enix.org> References: <1102093124.4602.14.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1102093124.4602.14.camel@localhost.localdomain> Sender: xen-devel-admin@lists.sourceforge.net Errors-To: xen-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Paul Larson Cc: xen-devel@lists.sourceforge.net List-Id: xen-devel@lists.xenproject.org Paul Larson wrote: >I think I've seen something similar to this posted recently, but I can't >find the message to reply to. I build xen-2.0-testing from source >yesterday. I have debian sarge running on all my domains right now. I >was trying the save/restore feature out, and got this after restoring >and consoling into a session: > >************ REMOTE CONSOLE: CTRL-] TO QUIT ******** >Unable to handle kernel NULL pointer dereference at virtual address >00000007 > printing eip: >c030e587 >*pde = ma 00000000 pa 55555000 > [] __do_suspend+0x19f/0x1e0 > > [...] I had exactly this problem with exactly the same setup (xen-2.0-testing on sarge). Ian told that he would be interested with the vmlinux* files (not the vmlinuz ; those with the debug symbols, if I understood correctly). I couldn't yet reproduce this bug (I recompiled the kernels with iptables support, and now the domain crashes on restoring without any message ; and I will get physical access to the machines this week-end only - and then apply the patch to show all kernel messages from all domains on the console, to guess what's happening). I don't think Debian is at the source of the problem :-) ... but the precise version of gcc could be. FYI, I was using gcc-3.3.5 (I compiled my kernels on my "fast" sid box, not on the xen box). Which gcc are you using ? ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/