From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932079AbXGOB2J (ORCPT ); Sat, 14 Jul 2007 21:28:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757797AbXGOB17 (ORCPT ); Sat, 14 Jul 2007 21:27:59 -0400 Received: from opinicus.com ([24.73.193.242]:54196 "EHLO thing2.opinicus.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755584AbXGOB17 (ORCPT ); Sat, 14 Jul 2007 21:27:59 -0400 Message-ID: <469977EF.7050709@opinicus.com> Date: Sat, 14 Jul 2007 21:27:11 -0400 From: William Montgomery User-Agent: Mozilla Thunderbird 1.0.6 (X11/20050716) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Krzysztof Halasa CC: linux-kernel@vger.kernel.org Subject: Re: e100 PCI bridge problem References: <4697B85B.4040902@opinicus.com> <46995998.70706@opinicus.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Krzysztof Halasa wrote: >William Montgomery writes: > > > >>I am using a PCI analyzer and it shows the bus in an idle state after >>the lockup. The PCI transactions just prior to the lockup show a >>couple of interrupts from the card which appear to be handled >>correctly. Anything I should be looking for in particular? >> >> > >I'd try to check with other machine using "secondary" bus slot. >BTW: Are you able to analyze the "primary" bus transactions while >using the card in "secondary" bus? Perhaps there is something >wrong in front of the motherboard bridge? > >A broken motherboard may be hard to diagnose, unfortunately. > >Can you post something like "lspci -vv" taken on both machines? > > I will post more info on Monday when I am able to power them up. I'm not so sure the motherboard is broken, I am leaning more towards a misconfigured bridge. This computer is a 4U 19 inch rackmount chassis with a PCMIG CPU and a 12 slot PCI backplane. I have done a lot of testing with this box trying to characterize this problem. In one case I have put 3 Intel PRO 100S NICs on the secondary PCI bus and they ran under heavy stress test loads overnight. The 4 port NIC seems to be the only card that doesnt want to cooperate.