Comment 0 for bug 855199

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 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:

These machines all have one PCI-E slot. 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.

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
 **** 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
 /dev/snd/controlC1: ed 1696 F.... pulseaudio
 /dev/snd/controlC0: ed 1696 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
 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
 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)
 lo no wireless extensions.

 eth0 no wireless extensions.
MachineType: Hewlett-Packard HP dx5150 MT
 PATH=(custom, no user)
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-11-generic root=UUID=7649d274-b118-4ac7-b7c8-2fb7e42094bf ro quiet splash irqpoll vt.handoff=7
 linux-restricted-modules-3.0.0-11-generic N/A
 linux-backports-modules-3.0.0-11-generic N/A
 linux-firmware 1.60

SourcePackage: linux
UpgradeStatus: Upgraded to oneiric on 2011-09-20 (0 days ago) 08/01/2006
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 1.18 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: HP dx5150 MT
dmi.sys.vendor: Hewlett-Packard