From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751099AbXAIIxZ (ORCPT ); Tue, 9 Jan 2007 03:53:25 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751149AbXAIIxZ (ORCPT ); Tue, 9 Jan 2007 03:53:25 -0500 Received: from il.qumranet.com ([62.219.232.206]:52658 "EHLO il.qumranet.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751099AbXAIIxY (ORCPT ); Tue, 9 Jan 2007 03:53:24 -0500 Message-ID: <45A35800.9090602@qumranet.com> Date: Tue, 09 Jan 2007 10:53:20 +0200 From: Avi Kivity User-Agent: Thunderbird 1.5.0.9 (X11/20061219) MIME-Version: 1.0 To: Roland Dreier CC: kvm-devel , linux-kernel@vger.kernel.org Subject: Re: [kvm-devel] guest crash on 2.6.20-rc4 References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Roland Dreier wrote: > I'm running a 64-bit Fedora 6 install as a guest on a host running > 2.6.20-rc4 with the kvm-10 userspace release. The CPU is a Xeon 5160 > and I have 6 GB of RAM. The guest is given 512 MB of memory. I left > the guest idle overnight, and the makewhatis cron job seems to have > triggered this: > > Unable to handle kernel paging request at ffff81000ba04000 RIP: > [] clear_page+0x16/0x44 > PGD 8063 PUD 9063 PMD 800000000ba001e3 PTE aad8a7d881d984d9 > The pgd/pud/pmd entries are all correct, so it's clear the mmu is confused. > I just let yum update the guest to the 2.6.18-1.2869.fc6 kernel, but > I'm more suspicious of the MMU changes to kvm... > > Yes. > I don't see anything come up in the host logs when this happens. > > Let me know if there is other debugging info that would be helpful. > A way to reproduce this would be nice, though I realize it's asking much. -- error compiling committee.c: too many arguments to function