Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933599AbZLPHO5 (ORCPT ); Wed, 16 Dec 2009 02:14:57 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933346AbZLPHOw (ORCPT ); Wed, 16 Dec 2009 02:14:52 -0500 Received: from va3ehsobe004.messaging.microsoft.com ([216.32.180.14]:20559 "EHLO VA3EHSOBE004.bigfish.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S933607AbZLPHOv convert rfc822-to-8bit (ORCPT ); Wed, 16 Dec 2009 02:14:51 -0500 X-SpamScore: -47 X-BigFish: VPS-47(z21eWz1432R98dN936eMzz1202hzz5eeeTz32i6bh61h) X-Spam-TCS-SCL: 0:0 X-WSS-ID: 0KUQHG8-01-BTG-02 X-M-MSG: Date: Wed, 16 Dec 2009 08:14:43 +0100 From: Borislav Petkov To: Johannes Hirte CC: Borislav Petkov , linux-kernel@vger.kernel.org Subject: Re: K8 ECC error with linux-2.6.32 Message-ID: <20091216071443.GA18814@aftab> References: <200912112202.48173.johannes.hirte@fem.tu-ilmenau.de> <200912150808.04814.johannes.hirte@fem.tu-ilmenau.de> <20091215153026.GD20880@aftab> <200912152300.46325.johannes.hirte@fem.tu-ilmenau.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Disposition: inline In-Reply-To: <200912152300.46325.johannes.hirte@fem.tu-ilmenau.de> User-Agent: Mutt/1.5.20 (2009-06-14) Content-Transfer-Encoding: 8BIT X-OriginalArrivalTime: 16 Dec 2009 07:14:31.0974 (UTC) FILETIME=[69ED8460:01CA7E1F] X-Reverse-DNS: ausb3extmailp02.amd.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1390 Lines: 35 On Tue, Dec 15, 2009 at 11:00:46PM +0100, Johannes Hirte wrote: > > This patch (as the BIOS option) will only disable the error reports. The error > itself will still occur, right? So necessary to find out why the radeon driver > trigger this error. Because the graphics driver does aperture accesses with no matching GART translation, and the hw generates mchecks for that. The whole story on GART table walk errors is in section "13.10.1 GART Table Walk Error Reporting" in the document here: http://support.amd.com/us/Processor_TechDocs/32559.pdf I can't say for sure about your BIOS, but if it is done as described in the abovementioned section, the BIOS option should disable logging of the error, which implies reporting too. The patch is still needed for machines that do not have that BIOS option. -- Regards/Gruss, Boris. Operating | Advanced Micro Devices GmbH System | Karl-Hammerschmidt-Str. 34, 85609 Dornach b. M?nchen, Germany Research | Gesch?ftsf?hrer: Andrew Bowd, Thomas M. McCoy, Giuliano Meroni Center | Sitz: Dornach, Gemeinde Aschheim, Landkreis M?nchen (OSRC) | Registergericht M?nchen, HRB Nr. 43632 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/