From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gleb Natapov Subject: Re: [Qemu-devel] KVM: Windows 64-bit troubles with user space irqchip Date: Wed, 2 Feb 2011 15:18:48 +0200 Message-ID: <20110202131848.GH14984@redhat.com> References: <4D484A9B.9040604@siemens.com> <20110202115537.GE14984@redhat.com> <4D4946F7.1070702@siemens.com> <20110202123532.GF14984@redhat.com> <4D4952FA.8020300@siemens.com> <4D49569F.6060207@redhat.com> <4D495784.7050004@siemens.com> <20110202131103.GG14984@redhat.com> <4D4958B2.4070709@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Jan Kiszka , kvm , qemu-devel To: Avi Kivity Return-path: Received: from mx1.redhat.com ([209.132.183.28]:31696 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751459Ab1BBNTN (ORCPT ); Wed, 2 Feb 2011 08:19:13 -0500 Content-Disposition: inline In-Reply-To: <4D4958B2.4070709@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On Wed, Feb 02, 2011 at 03:14:26PM +0200, Avi Kivity wrote: > On 02/02/2011 03:11 PM, Gleb Natapov wrote: > >On Wed, Feb 02, 2011 at 02:09:24PM +0100, Jan Kiszka wrote: > >> On 2011-02-02 14:05, Avi Kivity wrote: > >> > On 02/02/2011 02:50 PM, Jan Kiszka wrote: > >> >>>> > >> >>> Opps, -smp 1. With -smp 2 it boot almost completely and then hangs. > >> >> > >> >> Ah, good (or not good). With Windows 2003 Server, I actually get a Blue > >> >> Screen (Stop 0x000000b8). > >> > > >> > Userspace APIC is broken since it may run with an outdated cr8, does > >> > reverting 27a4f7976d5 help? > >> > > >> > >> -ECOMMITNOTFOUND, neither in qemu-kvm nor upstream. > >> > >This is kernel commit, but it is too old. I am pretty sure userspace irq > >chip worked back then. > > I have memories of it failing autotest, but the conclusion was that > the commit did not cause the problem, simply enlarged the window in > which it could happen. > Ah, I remember something like that. RHEL6 kernel + qemu-kvm fails in the same way so problem is not new. -- Gleb.