From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan Kiszka Subject: Re: vga passthrough // questions about pci passthrough Date: Thu, 19 Jul 2012 18:13:48 +0200 Message-ID: <5008323C.7060107@siemens.com> References: <50064D87.2090809@adiumentum.com> <50068134.4060306@siemens.com> <5006A72D.3080408@adiumentum.com> <5006ADF3.9030304@adiumentum.com> <1342621405.2229.194.camel@bling.home> <50081FBC.7060208@adiumentum.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: Alex Williamson , "kvm@vger.kernel.org" To: Martin Wolf Return-path: Received: from goliath.siemens.de ([192.35.17.28]:23467 "EHLO goliath.siemens.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751473Ab2GSQNz (ORCPT ); Thu, 19 Jul 2012 12:13:55 -0400 In-Reply-To: <50081FBC.7060208@adiumentum.com> Sender: kvm-owner@vger.kernel.org List-ID: On 2012-07-19 16:54, Martin Wolf wrote: > i tried now the alpha of ubuntu 12.10 that includes qemu-kvm 1.1 > and a 3.5 kernel version. > > the "msr" problem is gone now, i was able to select "sandybridge" as > cpu topology, this removed the MSR error messages. > thats the positive part... > > unfortunately i had no success with the other topics (rebootability and > the soundcard) > > rebootability: > the guest vm still crashes with a page fault bluescreen So this card likely needs special steps to trigger a reset. Then only the vendor can help. > > soundcard: > it would be really nice if someone would be able to give me > some advise how to debug this problem. Check /proc/interrupts for other users of IRQ 11. Disable them as a first try. What would also be interesting is the output of qemu-kvm 1.1 regarding why the card still doesn't work. Did it change? Jan -- Siemens AG, Corporate Technology, CT RTC ITP SDP-DE Corporate Competence Center Embedded Linux