From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gerd Hoffmann Subject: Re: [BUG] double fault for sale ;) Date: Tue, 30 May 2006 18:49:45 +0200 Message-ID: <447C77A9.3010502@suse.de> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Keir Fraser Cc: Xen devel list List-Id: xen-devel@lists.xenproject.org > Gerd, > > Can you please let me know whether the attached patch fixes the > crash for you? I suspect a bug in your modified builder triggered a > broken error path in Xen -- so this patch will hopefully turn the Xen > crash into a failure of your modified builder. :-) Yep, its fixed, now the newly created domain crashes, probably during kernels initial page table setup (pfn 0 looks like that), which likely is a builder bug. I get this now: (XEN) DOM1: (file=mm.c, line=1528) Bad type (saw 33030001 != exp e0000000) for mfn c72 (pfn 0) (XEN) DOM1: (file=mm.c, line=505) Error getting mfn c72 (pfn 0) from L1 entry 00c72063 for dom1 (XEN) DOM1: (file=mm.c, line=3054) ptwr: Could not revalidate l1 page (XEN) domain_crash called from mm.c:3055 (XEN) Domain 1 (vcpu#0) crashed on cpu#1: (XEN) ----[ Xen-3.0-unstable Not tainted ]---- (XEN) CPU: 1 (XEN) EIP: e019:[] (XEN) EFLAGS: 00000286 CONTEXT: guest [ ... ] cheers, Gerd -- Gerd Hoffmann http://www.suse.de/~kraxel/julika-dora.jpeg