** Description changed: In all kernels since 2.6.39, the "irqfixup" and "irqpoll" options are no longer taking effect. I have several machines that need to boot with one of these options, and I see reports of this regression from multiple other users. The interrupts now generate the same errors seen without these kernel options, e.g.: irq 19: nobody cared (try booting with the "irqpoll" option) - even though irqpoll, or irqfixup, is used. I don't know whether these - options fail in all cases, or if some unknown hardware configurations - are out there continuing to work. + even though irqpoll, or irqfixup, is used. The Linux irq code was reworked during the 2.6.39 cycle. I have gone through the patches, and this is the commit where the regression arrives: - commit d05c65fff0ef672be75429266751f0e015b54d94 + commit d05c65fff0ef672be75429266751f0e015b54d94 - genirq: spurious: Run only one poller at a time + http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=d05c65fff0ef672be75429266751f0e015b54d94 - No point in running concurrent pollers which confuse each other by - setting PENDING. + I have a fix that works as far as i can test it, and I've now submitted + a patch. - author Thomas Gleixner <t...@linutronix.de> - Mon, 7 Feb 2011 13:31:37 +0000 (14:31 +0100) - committer Thomas Gleixner <t...@linutronix.de> - Sat, 19 Feb 2011 11:58:09 +0000 (12:58 +0100) + The problem commit added a test to the bad-irq routines, checking + whether they were already running. One of these tests had an "==" + operator, where it seems to need "!=", not equal. Making that one change + in kernel/irq/spurious.c fixes the regression for me. I've tested it + successfully it on various kernels, including the current Oneiric + source. - http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=d05c65fff0ef672be75429266751f0e015b54d94 + The submitted patch is attached. And here it is on LKML: - I emailed LKML and Mr. Gleixner, who is the subsystem maintainer, but - got no response to date. (And the kernel bugzilla is still down.) I - had not isolated this single patch, out of the pile, then. I'm trying - to look the patch over, to improve my case, before my next try at - getting maintainer attention. + https://lkml.org/lkml/2011/11/1/267 - ProblemType: Bug - DistroRelease: Ubuntu 11.10 - Package: linux-image-3.0.0-11-generic 3.0.0-11.18 - ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4 - Uname: Linux 3.0.0-11-generic x86_64 - AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. - ApportVersion: 1.23-0ubuntu1 - Architecture: amd64 - ArecordDevices: - **** List of CAPTURE Hardware Devices **** - card 0: IXP [ATI IXP], device 0: ATI IXP AC97 [ATI IXP AC97] - Subdevices: 1/1 - Subdevice #0: subdevice #0 - AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC1: ed 1696 F.... pulseaudio - /dev/snd/controlC0: ed 1696 F.... pulseaudio - CRDA: Error: [Errno 2] No such file or directory - Card0.Amixer.info: - Card hw:0 'IXP'/'ATI IXP rev 2 with ALC655 at 0xfe02a000, irq 17' - Mixer name : 'Realtek ALC655 rev 0' - Components : 'AC97a:414c4760' - Controls : 41 - Simple ctrls : 26 - Card1.Amixer.info: - Card hw:1 'NVidia'/'HDA NVidia at 0xfcffc000 irq 18' - Mixer name : 'Nvidia GPU 0d HDMI/DP' - Components : 'HDA:10de000d,10de0101,00100100' - Controls : 17 - Simple ctrls : 5 - Date: Tue Sep 20 21:19:35 2011 - HibernationDevice: RESUME=UUID=821c96d0-f0af-4f34-a8c6-2713248cacc1 - InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007) - IwConfig: - lo no wireless extensions. - - eth0 no wireless extensions. - MachineType: Hewlett-Packard HP dx5150 MT - ProcEnviron: - PATH=(custom, no user) - LANG=en_US.UTF-8 - SHELL=/bin/bash - ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-11-generic root=UUID=7649d274-b118-4ac7-b7c8-2fb7e42094bf ro quiet splash irqpoll vt.handoff=7 - RelatedPackageVersions: - linux-restricted-modules-3.0.0-11-generic N/A - linux-backports-modules-3.0.0-11-generic N/A - linux-firmware 1.60 - RfKill: - - SourcePackage: linux - UpgradeStatus: Upgraded to oneiric on 2011-09-20 (0 days ago) - dmi.bios.date: 08/01/2006 - dmi.bios.vendor: Phoenix Technologies, LTD - dmi.bios.version: 1.18 - dmi.board.name: 09AC - dmi.board.vendor: MSI - dmi.chassis.asset.tag: 2UA63214R9 - dmi.chassis.type: 3 - dmi.chassis.vendor: Hewlett-Packard - dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr1.18:bd08/01/2006:svnHewlett-Packard:pnHPdx5150MT:pvr:rvnMSI:rn09AC:rvr:cvnHewlett-Packard:ct3:cvr: - dmi.product.name: HP dx5150 MT - dmi.sys.vendor: Hewlett-Packard + Any testing is very welcome.
** Tags added: kernel-bug patch-forwarded-upstream -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/855199 Title: "irqfixup" and "irqpoll" broken since 2.6.39 To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/855199/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs