From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756663AbZAMVhX (ORCPT ); Tue, 13 Jan 2009 16:37:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754509AbZAMVhF (ORCPT ); Tue, 13 Jan 2009 16:37:05 -0500 Received: from smtp1.linux-foundation.org ([140.211.169.13]:44494 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754412AbZAMVhD (ORCPT ); Tue, 13 Jan 2009 16:37:03 -0500 Date: Tue, 13 Jan 2009 13:35:44 -0800 (PST) From: Linus Torvalds X-X-Sender: torvalds@localhost.localdomain To: Connor Behan cc: Grant Grundler , Bjorn Helgaas , Jesse Barnes , "Rafael J. Wysocki" , linux-kernel@vger.kernel.org, Linux PCI , Gary Hade Subject: Re: Can't allocate resources for PCI video card behind bridge In-Reply-To: <496D0653.3040709@gmail.com> Message-ID: References: <49665493.4070808@gmail.com> <200901082057.00170.rjw@sisk.pl> <200901081226.38909.jbarnes@virtuousgeek.org> <200901091530.58694.bjorn.helgaas@hp.com> <20090110200902.GA14664@colo.lackof.org> <496BFFAA.3000707@gmail.com> <496D0653.3040709@gmail.com> User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 13 Jan 2009, Connor Behan wrote: > > I was about to say that the kernel where this worked once doesn't allow this > to work again. I downgraded to 2.6.27 and got the same problem. But then I > also downgraded udev, mkinitcpio, lilo, device-mapper, pciutils and hwdetect > and reset the defaults on my BIOS and took out pci=assign-busses and then the > card started working. Ok, can you now try to upgrade just the kernel? IOW, it would be good to try to figure out what it is that triggers this problem. > dmesg: http://pastebin.com/m68dd0ce > lspci: http://pastebin.com/m4c01d354 Yes, now I see a new bridge: 08:00.0 PCI bridge: PLX Technology, Inc. PEX8112 x1 Lane PCI Express-to-PCI Bridge (rev aa) (prog-if 00 [Normal decode]) and behind this bridge is this: 09:00.0 VGA compatible controller: ATI Technologies Inc RV505 [Radeon X1550 Series] (prog-if 00 [VGA controller]) 09:00.1 Display controller: ATI Technologies Inc RV505 [Radeon X1550 Series] (Secondary) > It's quite a bit different from when I remember it working the other time. The > errors on BARs 7, 8 and 9 still show up and the card is on bus 09. Yup. It's all ok. > However after I did this I updated all those packages to the newest > versions except I did so one at a time not all at once. Now I'm up to > date and still have this card working. So I'm sorry to bother you with > this, the kernel does not need to be patched for this at all. It's > either a BIOS problem or a distro problem caused by updating too many > packages at once. Either way it's fixed now. Thanks alot. Well, your dmesg is now from a 2.6.27 kernel, so I'd like to double-check and verify that upgrading the kernel really works now. It does sound like some non-kernel-related issue, but still.. Linus