From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: qemu-kvm-1.1.0 crashing with kernel 3.5.0-rc6 Date: Sun, 29 Jul 2012 17:48:00 +0300 Message-ID: <50154D20.1010509@redhat.com> References: <4FFAB92C.4030001@googlemail.com> <4FFD26B6.8000802@googlemail.com> <20120711071200.GG23898@redhat.com> <4FFD28B9.9040604@googlemail.com> <20120711072255.GH23898@redhat.com> <50031F85.6020908@googlemail.com> <5007FA1C.5080606@googlemail.com> <5007FAD6.2010407@redhat.com> <500850AD.8080504@googlemail.com> <50111369.6020209@googlemail.com> <50111566.5070202@redhat.com> <501130CF.5050207@googlemail.com> <501132EB.6060705@redhat.com> <5011D123.4060101@googlemail.com> <5012719A.5080208@googlemail.com> <5012E659.7060304@googlemail.com> <50152FC8.20905@redhat.com> <50154294.9040705@googlemail.com> <50154632.7010304@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Eric Northup , kvm@vger.kernel.org, Gleb Natapov , Jan Kiszka To: Chris Clayton Return-path: Received: from mx1.redhat.com ([209.132.183.28]:14139 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753160Ab2G2OsH (ORCPT ); Sun, 29 Jul 2012 10:48:07 -0400 In-Reply-To: <50154632.7010304@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On 07/29/2012 05:18 PM, Avi Kivity wrote: >> >> I think you are saying that the problem isn't in kvm, so where would you >> recommend I continue investigations. I'm not seeing a crash with any >> other applications. > > What might have happened is that the movdqu instruction faulted (as it's > an fpu instruction), and on the way back from the fault, ds and es > didn't get restored correctly. > > You can test this by writing a trivial version of g_str_equal() > somewhere in the qemu source code and rebuilding it. You're running a 32-bit kernel, yes? Please confirm. -- error compiling committee.c: too many arguments to function