From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751978Ab3ATL57 (ORCPT ); Sun, 20 Jan 2013 06:57:59 -0500 Received: from 8bytes.org ([85.214.48.195]:40986 "EHLO mail.8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751867Ab3ATL56 (ORCPT ); Sun, 20 Jan 2013 06:57:58 -0500 Date: Sun, 20 Jan 2013 12:57:55 +0100 From: =?iso-8859-1?Q?J=F6rg_R=F6del?= To: Borislav Petkov , Udo van den Heuvel , linux-kernel@vger.kernel.org, Boris Ostrovsky , Jacob Shin Subject: Re: 3.6.11 AMD-Vi: Completion-Wait loop timed out Message-ID: <20130120115755.GO25591@8bytes.org> 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> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20130120114828.GB16519@pd.tnic> User-Agent: Mutt/1.5.21 (2010-09-15) X-DSPAM-Result: Whitelisted X-DSPAM-Processed: Sun Jan 20 12:57:56 2013 X-DSPAM-Confidence: 0.9969 X-DSPAM-Probability: 0.0000 X-DSPAM-Signature: 50fbdbc422972884111305 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Jan 20, 2013 at 12:48:28PM +0100, 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. > > Btw, can't we add a quirk to disable NB clock gating? Maybe Boris and > Jacob could help. CCed. BorisO is no longer with AMD afaik. I wrote an email to Sherry and Suravee and asked them to either send me hardware to write the fix on my own or to send a fix for the issue. Let's see what happens... Joerg