** Description changed: I have several similar HP boxes that boot with IRQ errors, for the USB subsystem, like this: irq 19: nobody cared (try booting with the "irqpoll" option) ... So I have indeed always used the "irqpoll" kernel argument, and that has fixed the USB performance problems. - Under 2.6.39 and 3.0, the kernel option has stopped working. The logs - say "try booting with the 'irqpoll' option", though they also show that + Under 2.6.39 and 3.0, the irqpoll fix has stopped working. The logs say + "try booting with the 'irqpoll' option", though they also show that argument was present. - I don't yet have any idea why it's no longer taking effect (and I have - not yet tried other kernels than Ubuntu images). - - Here is some context on the IRQ errors, in case it is relevant, though - this may be just a boot-argument problem: + Here is some context on the IRQ errors: These machines all have a PCI-E x16 slot, for video cards. They only have the IRQ problems when that slot is used; if I revert to onboard video, they go away. When I do use a video card, as I'd prefer to do, the errors come regardless of which card, whether it is ATI or Nvidia, with open or proprietary drivers. "Irqpoll" has always taken care of them, until 2.6.39 arrived. + + At first I was uncertain whether it was just a problem with the boot + argument taking effect, but now I have seen the logs do say "Misrouted + IRQ fixup and polling support enabled". I'll be happy to provide more information, if possible. Thank you. 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
-- 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: 2.6.39 and later have lost "irqpoll" functionality To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/855199/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
