Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754158AbZAUVUd (ORCPT ); Wed, 21 Jan 2009 16:20:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752548AbZAUVUT (ORCPT ); Wed, 21 Jan 2009 16:20:19 -0500 Received: from mx3.mail.elte.hu ([157.181.1.138]:55952 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752266AbZAUVUQ (ORCPT ); Wed, 21 Jan 2009 16:20:16 -0500 Date: Wed, 21 Jan 2009 22:20:05 +0100 From: Ingo Molnar To: "Waskiewicz Jr, Peter P" Cc: "Allan, Bruce W" , "linux-kernel@vger.kernel.org" , "Kirsher, Jeffrey T" , "Brandeburg, Jesse" , "e1000-devel@lists.sourceforge.net" , "netdev@vger.kernel.org" , "Rafael J. Wysocki" Subject: Re: igb regression (interface hang) with latest -git Message-ID: <20090121212005.GA26992@elte.hu> References: <20090121102840.GA24967@elte.hu> <8DD2590731AB5D4C9DBF71A877482A900DABEA6F@orsmsx509.amr.corp.intel.com> <20090121175158.GA7302@elte.hu> <20090121180344.GA13675@elte.hu> <20090121182504.GA14259@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090121182504.GA14259@elte.hu> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5068 Lines: 90 * Ingo Molnar wrote: > > One other piece of info (in addition to what Bruce requested) that > > would be useful is after you've done ifconfig eht0 up, cat > > /proc/interrupts | grep eth0 and send that output (I want to see your > > MSI-X configuration). > > here it is: > > 79: 35 0 9836 7451 1197 1360 766 0 2196 995 770 0 2051 863 4714 1879 PCI-MSI-edge eth0-tx-0 > 80: 2335 0 2718 3651 5024 9850 533 0 1405 1095 0 0 4421 1229 0 2002 PCI-MSI-edge eth0-tx-1 > 81: 33 0 0 5478 1125 6585 4865 6306 0 0 0 714 3757 0 2662 1020 PCI-MSI-edge eth0-tx-2 > 82: 21 1428 3136 3783 4249 6833 0 0 4175 0 0 1465 1940 1780 6286 0 PCI-MSI-edge eth0-tx-3 > 83: 40 0 0 4788 0 1486 0 7185 3998 8637 1409 6785 0 0 0 10060 PCI-MSI-edge eth0-rx-0 > 84: 70 1441 2606 1342 0 1678 4301 1839 0 6507 6910 16470 0 1484 1004 0 PCI-MSI-edge eth0-rx-1 > 85: 40 1368 0 3560 5022 2040 5 1719 0 2037 956 40 0 17264 6456 2833 PCI-MSI-edge eth0-rx-2 > 86: 44 414 5 1164 30 4513 4595 1542 0 10033 1151 0 4961 4203 0 10703 PCI-MSI-edge eth0-rx-3 > 87: 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PCI-MSI-edge eth0 btw., i turned off CONFIG_PCI_MSI and that worked around the interface hang - the box has 40 minutes uptime now and still no hang. (it would hang within 5 minutes previously) can test the revert of any of these commits: e42e4ba: igb: fix anoying type mismatch warning on rx/tx queue sizing 8d25332: igb: Fix build warning when DCA is disabled. 26bc19e: igb: re-order queues to support cleaner use of ivar on 82576 0e014cb: igb: defeature tx head writeback 678c610: drivers/net/igb: remove dead code (function 'igb_read_pci_cfg') 908a7a1: net: Remove unused netdev arg from some NAPI interfaces. ea943d4: igb: fixup AER with proper error handling 5e8427e: igb: Correctly determine pci-e function number in virtual environment b4557be: igb: update handling of RCTL for smaller buffer sizes cb7b48f: igb/e1000e: Naming interrupt vectors 40a914f: igb: Add support for pci-e Advanced Error Reporting 527d47c: igb: link up/down messages must follow a specific format 5b9ab2e: Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 69d728b: igb: loopback bits not correctly cleared from RCTL register 9b07f3d: igb: remove unneeded bit refrence when enabling jumbo frames f5f4cf0: igb: do not use phy ops in ethtool test cleanup for non-copper parts 0082982: netdev: add more functions to netdevice ops 68fd991: igb: Fix tx/rx_ring_count parameters for igb on suspend/resume/ring resize b2d5653: igb: simplify swap in clean_rx_irq if using packet split 2e5c692: igb: convert to net_device_ops 198d6ba: Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 4cf1653: netdevice: safe convert to netdev_priv() #part-2 babcda7: drivers/net: Kill now superfluous ->last_rx stores. 7c510e4: net: convert more to %pM i had a quick look at all of them but none seem to have a direct connection to MSI-X interrupt generation. There's a couple of ones that could have side effects: Maybe this one: 26bc19e: igb: re-order queues to support cleaner use of ivar on 82576 due to its sheer commit size and due to its impact on the hw programming. or: 0e014cb: igb: defeature tx head writeback Might have some side-effect on tx-completion IRQs and might tickle firmware bugs? Or: 5e8427e: igb: Correctly determine pci-e function number in virtual environment while it should have no impact on a native kernel, it does change the PCI config space access sequences. Or maybe: 69d728b: igb: loopback bits not correctly cleared from RCTL register as this impacts the PCI programming too. But ... i dont really know this code so i'm guessing around. Ingo -- 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/