iwlagn hogs CPU

[Sébastien Pierre]

I often get iwlagn hogging my CPU

 PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
  903 root 15 -5 0 0 0 R 99 0.0 104:05.39 iwlagn

My NC is

03:00.0 Network controller: Intel Corporation Wireless WiFi Link 5300

I'm running 9.10 32bit on a Thinkpad X200T

 -- Sébastien

[Ludwin Janvier (lud-janvier)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Unfortunately, we can't fix it without more information.

Please run the following command which will attach necessary information:

apport-collect 504345

Bear in mind that you may need to install the python-launchpadlib package from the universe repository with 'sudo apt-get install python-launchpadlib'. Additionally, when prompted to give apport-collect permissions for Launchpad you will need to give it at least the ability to "Change Non-Private" data as it will be adding information to your bug report.

If you are using an older release or cannot use apport please at least add the following information (pay attention to lspci's additional options):
First run the following commands:
1) uname -a > uname-a.log
2) dmesg > dmesg.log
3) sudo lspci -vvnn > lspci-vvnn.log
4) cat /proc/version_signature > version.log
then attach the files separately to the bug report (not pasted into comments or tar/zip-ed).

For your reference, the full description of procedures for kernel-related bug reports is available at https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies. Thanks in advance!

[Sébastien Pierre (sebastien-type-z)]

Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: sebastien 2230 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf2620000 irq 17'
   Mixer name : 'Conexant CX20561 (Hermosa)'
   Components : 'HDA:14f15051,17aa211b,00100000'
   Controls : 14
   Simple ctrls : 7
DistroRelease: Ubuntu 9.10
HibernationDevice: RESUME=UUID=ac37b4c1-bbc1-4dda-851d-fa78ab8ee49c
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
MachineType: LENOVO 7448CTO
Package: linux (not installed)
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-17-generic root=UUID=ec9b3a13-7e3f-44d4-b7a4-0454de0aefc9 ro quiet splash
ProcEnviron:
 PATH=(custom, user)
 LANG=fr_CA.UTF-8
 SHELL=/usr/bin/tcsh
ProcVersionSignature: Ubuntu 2.6.31-17.54-generic
RelatedPackageVersions:
 linux-backports-modules-2.6.31-17-generic N/A
 linux-firmware 1.25
Uname: Linux 2.6.31-17-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 12/19/2008
dmi.bios.vendor: LENOVO
dmi.bios.version: 7WET31WW (2.02 )
dmi.board.name: 7448CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr7WET31WW(2.02):bd12/19/2008:svnLENOVO:pn7448CTO:pvrThinkPadX200T:rvnLENOVO:rn7448CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 7448CTO
dmi.product.version: ThinkPad X200T
dmi.sys.vendor: LENOVO

[Jeremy Foshee (jeremyfoshee)]

Hi Sébastien,

This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? Can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux 504345

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

    [This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[Jeremy Foshee (jeremyfoshee)]

This bug report was marked as Incomplete and has not had any updated comments for quite some time. As a result this bug is being closed. Please reopen if this is still an issue in the current Ubuntu release http://www.ubuntu.com/getubuntu/download . Also, please be sure to provide any requested information that may have been missing. To reopen the bug, click on the current status under the Status column and change the status back to "New". Thanks.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]