Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754028Ab2HAJYT (ORCPT ); Wed, 1 Aug 2012 05:24:19 -0400 Received: from mail.profihost.ag ([85.158.179.208]:49676 "EHLO mail.profihost.ag" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753672Ab2HAJYS (ORCPT ); Wed, 1 Aug 2012 05:24:18 -0400 Message-ID: <5018F5BB.9070500@profihost.ag> Date: Wed, 01 Aug 2012 11:24:11 +0200 From: Stefan Priebe - Profihost AG User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:14.0) Gecko/20120714 Thunderbird/14.0 MIME-Version: 1.0 To: Avi Kivity CC: mtosatti@redhat.com, kvm@vger.kernel.org, LKML Subject: Re: KVM segfaults with 3.5 while installing ubuntu 12.04 References: <5017C8A0.60506@profihost.ag> <5017F19E.4070308@redhat.com> <501817C9.6090405@profihost.ag> <5018EC7D.9090702@redhat.com> In-Reply-To: <5018EC7D.9090702@redhat.com> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit X-User-Auth: Auth by hostmaster@profihost.com through 85.158.179.66 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1498 Lines: 43 Hi, ok i found a faster way to trigger this. Just boot the ubuntu rescue system. So here are 3 backtraces from booting the rescue system: http://pastebin.com/raw.php?i=xCy2pEcP To me they all look the same. Thanks! Stefan Am 01.08.2012 10:44, schrieb Avi Kivity: > On 07/31/2012 08:37 PM, Stefan Priebe wrote: >> Now i got it working - sorry used old gdb. >> >> This is the backtrace: >> >> Core was generated by `/usr/bin/qemu-system-x86_64 -id 103 -chardev >> socket,id=qmp,path=/var/run/qemu-s'. >> Program terminated with signal 11, Segmentation fault. >> #0 0x00007f6ca10faed8 in ?? () from /lib/libc.so.6 >> (gdb) where >> #0 0x00007f6ca10faed8 in ?? () from /lib/libc.so.6 >> #1 0x00007f6ca54e0098 in virtio_notify_vector (vdev=0x7f6ca10fae98, >> vector=32620) >> at /root/src/pve-qemu-kvm/qemu-kvm/hw/virtio.c:493 >> #2 0x00007f6ca54e0e25 in virtio_notify (vdev=0x7f6ca10fae98, >> vq=0x7f6ca10faf18) at /root/src/pve-qemu-kvm/qemu-kvm/hw/virtio.c:739 >> #3 0x00007f6ca54d5bb0 in virtio_blk_req_complete (req=0x7f6ca6fe4440, >> status=0) > > I notice the ip is different from the first trace. Please run this a few > more times and see if it always fails in the same place, or in random > places (and post the traces please). > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/