From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752002Ab3ATLxN (ORCPT ); Sun, 20 Jan 2013 06:53:13 -0500 Received: from pindarots.xs4all.nl ([80.101.128.228]:46782 "EHLO pindarots.xs4all.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751779Ab3ATLxM (ORCPT ); Sun, 20 Jan 2013 06:53:12 -0500 Message-ID: <50FBDA9A.3000101@xs4all.nl> Date: Sun, 20 Jan 2013 12:52:58 +0100 From: Udo van den Heuvel User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/17.0 Thunderbird/17.0 MIME-Version: 1.0 To: Borislav Petkov , =?UTF-8?B?SsO2cmcgUsO2ZGVs?= , linux-kernel@vger.kernel.org, Boris Ostrovsky , Jacob Shin Subject: Re: 3.6.11 AMD-Vi: Completion-Wait loop timed out References: <50FBC7EF.6040207@xs4all.nl> <20130120103652.GB16800@pd.tnic> <50FBC994.8020409@xs4all.nl> <20130120111920.GL25591@8bytes.org> <50FBD413.1000406@xs4all.nl> <20130120114011.GN25591@8bytes.org> <20130120114828.GB16519@pd.tnic> In-Reply-To: <20130120114828.GB16519@pd.tnic> X-Enigmail-Version: 1.5.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2013-01-20 12:48, Borislav Petkov wrote: > On Sun, Jan 20, 2013 at 12:40:11PM +0100, Jörg Rödel wrote: >> Yes, the BIOS vendor can fix this issue. They need to disable NB clock >> gating for the IOMMU. > > Right, Udo, you can try Gigabyte first. I just did so and referred to the kernel.org bugzilla. > Btw, can't we add a quirk to disable NB clock gating? Maybe Boris and > Jacob could help. CCed. That would be most helpful! Of course I can help testing but the issue happened only 1 time so far. The person from https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1073384 had more bad luck in experiencing the issue. Thanks, Udo