From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: kernel BUG at arch/x86/kvm/mmu.c:655! Date: Sun, 09 Jan 2011 19:20:00 +0200 Message-ID: <4D29EE40.4070205@redhat.com> References: <4D277B0D.8070505@wpkg.org> <4D29E16E.3080704@redhat.com> <4D29EAEE.306@wpkg.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: "kvm@vger.kernel.org" To: Tomasz Chmielewski Return-path: Received: from mx1.redhat.com ([209.132.183.28]:2060 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751564Ab1AIRUE (ORCPT ); Sun, 9 Jan 2011 12:20:04 -0500 In-Reply-To: <4D29EAEE.306@wpkg.org> Sender: kvm-owner@vger.kernel.org List-ID: On 01/09/2011 07:05 PM, Tomasz Chmielewski wrote: > On 09.01.2011 17:25, Avi Kivity wrote: >> On 01/07/2011 10:43 PM, Tomasz Chmielewski wrote: >>> The following happened when I tried to reboot a virtual machine (host >>> running qemu 0.13.0, kernel 2.6.36.2). >>> After a while, the server hanged and was no longer reachable. >>> >>> kvm: 3927: cpu0 unhandled wrmsr: 0x198 data 0 >>> kvm: 3927: cpu1 unhandled wrmsr: 0x198 data 0 >>> rmap_remove: ffff88060e9437f8 0 1->BUG >> >> Is this reproducible? > > Not sure - I can't experiment too much on this server. > > What I know is that with 2.6.36.x kernel, this server *always* hangs > after a few hours/days, whereas with earlier kernels (2.6.35.x and > earlier) it runs fine. > > Can't say if the reason is the same or not. > Well, whether it's the same bug or not, it's worth fixing. -- error compiling committee.c: too many arguments to function