From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Andrews Subject: Re: segfault in VM Date: Mon, 19 Jul 2004 10:01:54 +0100 Sender: xen-devel-admin@lists.sourceforge.net Message-ID: <40FB8E02.3030807@nodnol.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Errors-To: xen-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Keir Fraser Cc: xen-devel@lists.sourceforge.net List-Id: xen-devel@lists.xenproject.org Keir Fraser wrote: >>Keir Fraser wrote: >> >>>Clearly there's some fairly random memory corruption going on, which >>>then causes segfaults (if the corruption hits code pages) and >>>filesystem corruption (if the corruption hits buffer-cache pages). >> >> > >> >>>The "Bailing: not a -ve offset" and "GPF (0004):" messages are almost >>>certainly just symptoms of executing a corrupted block of code. i.e., >>>the bug has already triggered some time ago - probably corrupted a >>>page of glibc or the kernel. >>> >>>It would be interesting to see whether or not this is SMP-related. >>>It's also interesting that someone said they couldn't reproduce >>>corruption when using 2.6.7 for the non-privileged guest OSes. >> >>I'm seeing this corruption on a single CPU machine, with a single 2.4 >>guest running but idle. I only ran one 2.6.7 guest, and I didn't give it >>any work, but it didn't take any load in the 2.4 guest to provoke problems. > > > Do you mean a single 2.4 or 2.6 guest in addition to your 2.4 DOM0? Yes, that's right. With just the 2.4 domain0 on its own, everything seems fine. Chris. ------------------------------------------------------- This SF.Net email is sponsored by BEA Weblogic Workshop FREE Java Enterprise J2EE developer tools! Get your free copy of BEA WebLogic Workshop 8.1 today. http://ads.osdn.com/?ad_id=4721&alloc_id=10040&op=click