From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760625AbYCZQws (ORCPT ); Wed, 26 Mar 2008 12:52:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757568AbYCZQwU (ORCPT ); Wed, 26 Mar 2008 12:52:20 -0400 Received: from e4.ny.us.ibm.com ([32.97.182.144]:36624 "EHLO e4.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757203AbYCZQwN (ORCPT ); Wed, 26 Mar 2008 12:52:13 -0400 Subject: Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6 From: Dave Hansen To: Avi Kivity Cc: "linux-kernel@vger.kernel.org" , kvm-devel In-Reply-To: <47EA1C63.8010202@qumranet.com> References: <1206479576.7562.21.camel@nimitz.home.sr71.net> <47EA1C63.8010202@qumranet.com> Content-Type: text/plain Date: Wed, 26 Mar 2008 09:52:09 -0700 Message-Id: <1206550329.7883.5.camel@nimitz.home.sr71.net> Mime-Version: 1.0 X-Mailer: Evolution 2.12.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2008-03-26 at 11:50 +0200, Avi Kivity wrote: > Dave Hansen wrote: > > I was getting some kvm userspace crashes trying to run a Windows guest. > > So, I decided to try a recent kernel (2.6.25-rc6-00333-ga4083c9) with > > the kvm kernel code that shipped with that kernel. > > > > This is fixed in 2.6.25-rc7. I just updated to -rc7 and re-tested. Same symptoms: [ 751.033545] BUG: unable to handle kernel paging request at 0096b848 [ 751.040082] IP: [] d_instantiate+0x26/0x50 [ 751.048065] Oops: 0002 [#1] SMP [ 751.052057] Modules linked in: kvm_intel kvm nls_iso8859_1 vfat fat rfcomm l2cap tun ppdev acpi_cpufreq cpufreq_ondemand cpe [ 751.052057] [ 751.052057] Pid: 8743, comm: evolution Not tainted (2.6.25-rc7 #146) [ 751.052057] EIP: 0060:[] EFLAGS: 00210286 CPU: 0 [ 751.052057] EIP is at d_instantiate+0x26/0x50 [ 751.052057] EAX: 0096b844 EBX: e65d7d48 ECX: 00000000 EDX: e65d7d60 [ 751.052057] ESI: e67a7d00 EDI: e67a7cc0 EBP: e802ce48 ESP: e802ce3c [ 751.052057] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 [ 751.052057] Process evolution (pid: 8743, ti=e802c000 task=f3c8ce00 task.ti=e802c000) [ 751.052057] Stack: e65d7d48 00000000 f4c191f8 e802ce60 c01e2fa4 e67a7cc0 f4c191f8 e65d7d48 [ 751.052057] e660c280 e802ce80 c01e30c3 00008180 e67a7cc0 00000000 c03b4a00 e660c280 [ 751.052057] 00008180 e802cea0 c0197964 e802cf24 c03b4a00 e67a7cc0 e660c280 e802cf24 [ 751.052057] Call Trace: [ 751.052057] [] ? ext3_add_nondir+0x34/0x60 [ 751.052057] [] ? ext3_create+0xf3/0x100 [ 751.052057] [] ? vfs_create+0x74/0x100 [ 751.052057] [] ? open_namei_create+0x4f/0xa0 [ 751.052057] [] ? open_namei+0x513/0x560 [ 751.052057] [] ? do_filp_open+0x2c/0x60 [ 751.052057] [] ? get_unused_fd_flags+0x39/0xd0 [ 751.052057] [] ? do_sys_open+0x54/0xe0 [ 751.052057] [] ? sys_open+0x1c/0x20 [ 751.052057] [] ? sysenter_past_esp+0x6d/0xa5 [ 751.052057] [] ? quirk_vt8235_acpi+0x90/0xa0 [ 751.052057] ======================= [ 751.052057] Code: 27 00 00 00 00 55 89 e5 57 89 c7 56 8d 70 40 53 89 d3 39 70 40 75 37 b8 40 15 4e c0 e8 14 d1 1f 00 85 db [ 751.052057] EIP: [] d_instantiate+0x26/0x50 SS:ESP 0068:e802ce3c [ 751.052103] ---[ end trace 514c1de750400319 ]--- -- Dave