From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933388AbXC2RhJ (ORCPT ); Thu, 29 Mar 2007 13:37:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933688AbXC2RhJ (ORCPT ); Thu, 29 Mar 2007 13:37:09 -0400 Received: from out4.smtp.messagingengine.com ([66.111.4.28]:43281 "EHLO out4.smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933388AbXC2RhH (ORCPT ); Thu, 29 Mar 2007 13:37:07 -0400 X-Sasl-enc: pKqy3nkNIBLqt1ripUghh+xpRtCFNtyUruDpWoOkWO8t 1175189825 Date: Thu, 29 Mar 2007 14:37:00 -0300 From: Henrique de Moraes Holschuh To: Adam Jackson Cc: linux-kernel@vger.kernel.org Subject: Re: [PATCH] Fix 82875 PCI setup Message-ID: <20070329173700.GA9348@khazad-dum.debian.net> References: <1175185000.26247.33.camel@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1175185000.26247.33.camel@localhost.localdomain> X-GPG-Fingerprint: 1024D/1CDB0FE3 5422 5C61 F6B7 06FB 7E04 3738 EE25 DE3F 1CDB 0FE3 User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 29 Mar 2007, Adam Jackson wrote: > The 82875 EDAC driver enables an otherwise-hidden PCI device, but > doesn't register it as a PCI device properly. Therefore, the device > list in /proc/bus/pci/devices is different than the tree in > /sys/bus/pci. This usually manifests as the X server failing to start, > since it expects the two lists to be consistent. Just a note: when EDAC needs to unhide the overflow configuration space of the 82875, it is because the BIOS hid it. And some BIOSes actually reserve the area of the hidden device in the memory map/acpi tables/whatever. Intel's D875PBZ motherboard does this. EDAC can and does enable the overflow device, but it might fail to reserve that region because of that the BIOS did (and that is not a problem, in fact it is expected behaviour). I don't know if this affects this patch in any way. If it doesn't just delete this email. -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh