From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: DOS VM problem with QEMU-KVM and newer kernels Date: Mon, 16 Apr 2012 15:03:05 +0300 Message-ID: <4F8C0A79.3080702@redhat.com> References: <4F871FB6.4020906@wiesinger.com> <4F8A988A.2000009@redhat.com> <4F8BF3A1.8090200@siemens.com> <20120416103026.GV2428@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Jan Kiszka , Gerhard Wiesinger , "qemu-devel@nongnu.org" , "kvm@vger.kernel.org" , Kevin Wolf To: "Roedel, Joerg" Return-path: Received: from mx1.redhat.com ([209.132.183.28]:8565 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753547Ab2DPMDN (ORCPT ); Mon, 16 Apr 2012 08:03:13 -0400 In-Reply-To: <20120416103026.GV2428@amd.com> Sender: kvm-owner@vger.kernel.org List-ID: On 04/16/2012 01:30 PM, Roedel, Joerg wrote: > On Mon, Apr 16, 2012 at 12:25:37PM +0200, Jan Kiszka wrote: > > On 2012-04-15 11:44, Avi Kivity wrote: > > > Jan, Joerg, was an AMD erratum published for the bug? > > > > It wasn't an erratum but a documented feature limitation in the AMD > > architecture that was simply ignored by the old code. > > Right. But there is an erratum on K8 (only) which Kevin ran into. It is > documented as Erratum 701 and the bug is that no EXITINTINFO is stored > on a task-switch intercept on K8. Ah, so this could affect Gerhard. Gerhard, what's your cpu family/model/stepping from /proc/cpuinfo? -- error compiling committee.c: too many arguments to function