Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756391Ab0GNOOu (ORCPT ); Wed, 14 Jul 2010 10:14:50 -0400 Received: from mail.candelatech.com ([208.74.158.172]:47058 "EHLO ns3.lanforge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753161Ab0GNOOt (ORCPT ); Wed, 14 Jul 2010 10:14:49 -0400 Message-ID: <4C3DC64F.5040505@candelatech.com> Date: Wed, 14 Jul 2010 07:14:39 -0700 From: Ben Greear Organization: Candela Technologies User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.10) Gecko/20100621 Fedora/3.0.5-1.fc13 Thunderbird/3.0.5 MIME-Version: 1.0 To: Robert Hancock CC: linux-kernel , jbarnes@virtuousgeek.org, jacob.jun.pan@intel.com Subject: Re: Regression: 2.6.34 boot fails on E5405 system, bisected: de08e2c26 References: <4C3D067C.10507@candelatech.com> <4C3D101E.5010605@candelatech.com> <4C3D1942.1090207@gmail.com> <4C3D1F82.1040907@candelatech.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 List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1781 Lines: 42 On 07/13/2010 08:29 PM, Robert Hancock wrote: > On Tue, Jul 13, 2010 at 8:22 PM, Ben Greear wrote: >>> Can you print out bus->number and devfn and look that up in lspci to >>> find out which device it's hitting? It looks like there's a device with >>> a PCI Express extended capability header that has a extended capability >>> ID of 0000h and a next capability offset of 100h, which points to >>> itself, causing the infinite loop. I'm guessing that if pcie_cap>> 20 >>> <= pos then it should give up and break out of the loop, since it means >>> that the next capability pointer is invalidly pointing to the same or a >>> previous entry.. >> >> Bailing out like that does let it boot. >> >> As for the bus and devfn: bus: 0 devfn: 129 (decimal) >> >> I'm not sure what to look for in lspci, but here is the output with -n: > > That will be device 0x10 function 1, this one: > > 00:10.1 0600: 8086:25f0 (rev b1) > > Intel 5000 Series Chipset FSB Registers, apparently.. What does lspci > -vv show for that device? 00:10.1 Host bridge: Intel Corporation 5000 Series Chipset FSB Registers (rev b1) Subsystem: Super Micro Computer Inc Unknown device 9780 Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- Candela Technologies Inc http://www.candelatech.com -- 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/