From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753173AbXC3HgI (ORCPT ); Fri, 30 Mar 2007 03:36:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753188AbXC3HgI (ORCPT ); Fri, 30 Mar 2007 03:36:08 -0400 Received: from ug-out-1314.google.com ([66.249.92.168]:25589 "EHLO ug-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753173AbXC3HgF (ORCPT ); Fri, 30 Mar 2007 03:36:05 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=OHei1cqdLjqutVO1eySgiQ9NJzM6h9vzP1T89Qk7xpEZNFfqxwpIpdSxRryWV4LEA0wCpaTc8fuocJSWIBWa5AYLJLB6WjwjAnAvXpCiq2IzFETgm+3RLYrNDQ976caJNq5BoqG6Qcl8HTp8El1Et5Bvsa8L/neibsUeh2op30E= Message-ID: Date: Fri, 30 Mar 2007 03:36:02 -0400 From: Zach To: linux-kernel@vger.kernel.org Subject: spurious kernel error MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I just noticed this weird kernel message while looking through /var/log/ , I have never noticed this error to occur before and below is the only mention of it I could find in my log files: netrek:/var/log# grep IRQ7 * kern.log:Mar 29 23:44:36 netrek kernel: spurious 8259A interrupt: IRQ7. kernel:Mar 29 23:44:36 netrek kernel: spurious 8259A interrupt: IRQ7. messages:Mar 29 23:44:36 netrek kernel: spurious 8259A interrupt: IRQ7. syslog:Mar 29 23:44:36 netrek kernel: spurious 8259A interrupt: IRQ7. I next looked at output of lspci but as you can see I do not have IRQ7 assigned to anything: netrek:~# lspci -v 0000:00:00.0 Host bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (rev 03) Flags: bus master, medium devsel, latency 32 Memory at f4000000 (32-bit, prefetchable) [size=64M] Capabilities: [a0] AGP version 1.0 0000:00:01.0 PCI bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX AGP bridge (rev 03) (prog-if 00 [Normal decode]) Flags: bus master, 66MHz, medium devsel, latency 32 Bus: primary=00, secondary=01, subordinate=01, sec-latency=32 I/O behind bridge: 0000e000-0000efff Memory behind bridge: fd000000-feffffff Prefetchable memory behind bridge: f8000000-fbffffff 0000:00:03.0 CardBus bridge: Texas Instruments PCI1420 Subsystem: Dell Latitude C600 Flags: bus master, medium devsel, latency 32, IRQ 11 Memory at 10000000 (32-bit, non-prefetchable) [size=4K] Bus: primary=00, secondary=02, subordinate=05, sec-latency=32 I/O window 0: 00000000-00000003 I/O window 1: 00000000-00000003 16-bit legacy interface ports at 0001 0000:00:03.1 CardBus bridge: Texas Instruments PCI1420 Subsystem: Dell Latitude C600 Flags: bus master, medium devsel, latency 32, IRQ 11 Memory at 10001000 (32-bit, non-prefetchable) [size=4K] Bus: primary=00, secondary=06, subordinate=09, sec-latency=32 I/O window 0: 00000000-00000003 I/O window 1: 00000000-00000003 16-bit legacy interface ports at 0001 0000:00:07.0 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ISA (rev 02) Flags: bus master, medium devsel, latency 0 0000:00:07.1 IDE interface: Intel Corporation 82371AB/EB/MB PIIX4 IDE (rev 01) (prog-if 80 [Master]) Flags: bus master, medium devsel, latency 32 I/O ports at 0860 [size=16] 0000:00:07.2 USB Controller: Intel Corporation 82371AB/EB/MB PIIX4 USB (rev 01) (prog-if 00 [UHCI]) Flags: bus master, medium devsel, latency 32, IRQ 11 I/O ports at dce0 [size=32] 0000:00:07.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 03) Flags: medium devsel, IRQ 9 0000:00:08.0 Multimedia audio controller: ESS Technology ES1983S Maestro-3i PCI Audio Accelerator (rev 10) Subsystem: Dell Latitude C600 Flags: bus master, medium devsel, latency 32, IRQ 5 I/O ports at d800 [size=256] Memory at f3ffe000 (32-bit, non-prefetchable) [size=8K] Capabilities: [c0] Power Management version 2 0000:00:10.0 Ethernet controller: 3Com Corporation 3c556 Hurricane CardBus [Cyclone] (rev 10) Subsystem: 3Com Corporation: Unknown device 6456 Flags: bus master, medium devsel, latency 32, IRQ 11 I/O ports at d400 [size=256] Memory at f3ffdc00 (32-bit, non-prefetchable) [size=128] Memory at f3ffd800 (32-bit, non-prefetchable) [size=128] Expansion ROM at fc000000 [disabled] [size=128K] Capabilities: [50] Power Management version 2 0000:00:10.1 Communication controller: 3Com Corporation Mini PCI 56k Winmodem (rev 10) Subsystem: 3Com Corporation: Unknown device 615b Flags: bus master, medium devsel, latency 32, IRQ 11 I/O ports at d000 [size=256] Memory at f3ffd400 (32-bit, non-prefetchable) [size=256] Memory at f3ffd000 (32-bit, non-prefetchable) [size=128] Capabilities: [50] Power Management version 2 0000:01:00.0 VGA compatible controller: ATI Technologies Inc Rage Mobility M3 AGP 2x (rev 02) (prog-if 00 [VGA]) Subsystem: Dell Latitude C600 Flags: bus master, stepping, 66MHz, medium devsel, latency 32, IRQ 11 Memory at f8000000 (32-bit, prefetchable) [size=64M] I/O ports at ec00 [size=256] Memory at fdffc000 (32-bit, non-prefetchable) [size=16K] Expansion ROM at [disabled] [size=128K] Capabilities: [50] AGP version 2.0 Capabilities: [5c] Power Management version 2 /proc/pci similarly shows no IRQ 7 being assigned in accordance with the lspci output above: netrek:~# cat /proc/pci |grep IRQ IRQ 11. IRQ 11. IRQ 11. IRQ 9. IRQ 5. IRQ 11. IRQ 11. IRQ 11. My external serial modem (Supre Express 56 Sp) is on /dev/ttyS0 could this be using IRQ 7? By the way is there a way I can probe/scan my external modem so I can get information about it too? My kernel: netrek:~# uname -a Linux netrek 2.4.27-2-686 #1 Wed Nov 30 21:55:37 JST 2005 i686 GNU/Linux I am using the kernel image for Debian testing release (Debian 4.0): netrek:~# dpkg -l | grep kernel-image-2.4.27 ii kernel-image-2.4.27-2-686 2.4.27-12 Linux kernel image for version 2.4.27 on PPr netrek:~# apt-cache show kernel-image-2.4.27-2-686 Package: kernel-image-2.4.27-2-686 Status: install ok installed Priority: optional Section: base Installed-Size: 31844 Maintainer: Debian Kernel Team Architecture: i386 Source: kernel-image-2.4.27-i386 Version: 2.4.27-12 Provides: kernel-image, kernel-image-2.4 Depends: initrd-tools (>= 0.1.48), coreutils | fileutils (>= 4.0), modutils (>= 2.4.19) Suggests: lilo (>= 19.1) | grub, fdutils, kernel-doc-2.4.27 | kernel-source-2.4.27, kernel-pcmcia-modules-2.4.27-2-686 | pcmcia-modules-2.4.27-2-686 Description: Linux kernel image for version 2.4.27 on PPro/Celeron/PII/PIII/P4 This package contains the Linux kernel image for version 2.4.27 on Pentium Pro/Celeron/Pentium II/Pentium III/Pentium 4, the corresponding System.map file, and the modules built by the packager. It also contains scripts that try to ensure that the system is not left in a unbootable state after an update. . If you wish to update a bootdisk, or to use a bootloader to make installing and using the image easier, we suggest you install the latest fdutils (for formatting a floppy to be used as boot disk), and LILO, for a powerful bootloader. Of course, both these are optional. . Kernel image packages are generally produced using kernel-package, and it is suggested that you install that package if you wish to create a custom kernel from the sources. The machine is a notebook, Dell Latitude C600, BIOS version A23. I do not use the built-in ethernet card since for now I just access the net through dialup modem nor do I use the built-in Winmodem. netrek:~# cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 8 model name : Pentium III (Coppermine) stepping : 6 cpu MHz : 751.716 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 mmx fxsr sse bogomips : 1500.77 Any suggestions on what caused this error, how I can debug it to get more information or ideally how to prevent this from happening again would be appreciated. Regards, Zach