WARNING: at /build/buildd/linux-2.6.32/kernel/softirq.c:143 local_bh_enable_ip 0x7b/0xa0()

[dubf]

ath9k wlan driver stopped working

ProblemType: KernelOops
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-20-generic 2.6.32-20.29
Regression: No
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.32-20.29-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-20-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Annotation: Your system might become unstable now and might need to be restarted.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: thospr 1271 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0x98200000 irq 16'
   Mixer name : 'Realtek ALC272'
   Components : 'HDA:10ec0272,10250349,00100001'
   Controls : 14
   Simple ctrls : 8
Date: Tue Apr 13 20:00:23 2010
Failure: oops
Frequency: Once a day.
HibernationDevice: RESUME=UUID=444d9534-3a69-4acf-8a83-70b630c2ab35
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027.1)
MachineType: Acer AO532h
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-20-generic root=UUID=ba527a31-507d-447f-a77b-9802c9fdf0e8 ro quiet splash
RelatedPackageVersions: linux-firmware 1.33
SourcePackage: linux
Title: WARNING: at /build/buildd/linux-2.6.32/kernel/softirq.c:143 local_bh_enable_ip+0x7b/0xa0()
dmi.bios.date: 01/04/2010
dmi.bios.vendor: Acer
dmi.bios.version: V1.12
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: AO532h
dmi.board.vendor: Acer
dmi.board.version: V1.12
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.12
dmi.modalias: dmi:bvnAcer:bvrV1.12:bd01/04/2010:svnAcer:pnAO532h:pvrV1.12:rvnAcer:rnAO532h:rvrV1.12:cvnAcer:ct10:cvrV1.12:
dmi.product.name: AO532h
dmi.product.version: V1.12
dmi.sys.vendor: Acer