WARNING: at /build/buildd/linux-2.6.32/net/wireless/core.c:614 wdev_cleanup_work 0xa7/0xd0 [cfg80211]()

The wifi of my computer did stop suddenly after a few minutes and then reconnect. This happens every 5 minutes.

ProblemType: KernelOops
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-19-generic 2.6.32-19.28
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-19-generic i686
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: willy 1490 F.... pulseaudio
CRDA: Error: [Errno 2] Bestand of map bestaat niet
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xd2500000 irq 22'
   Mixer name : 'Realtek ALC883'
   Components : 'HDA:10ec0883,10250000,00100002 HDA:11c13026,10250110,00100700'
   Controls : 26
   Simple ctrls : 16
Date: Sat Apr 10 14:39:30 2010
Failure: oops
HibernationDevice: RESUME=UUID=9ec9c44c-04bb-4682-adb7-f61673e2ba8b
MachineType: Acer, inc. Aspire 5580
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: root=UUID=728afdff-dc49-4bf7-a17e-328bc265264c ro quiet splash
RelatedPackageVersions: linux-firmware 1.33
SourcePackage: linux
Title: WARNING: at /build/buildd/linux-2.6.32/net/wireless/core.c:614 wdev_cleanup_work+0xa7/0xd0 [cfg80211]()
WpaSupplicantLog:

dmi.bios.date: 03/03/07
dmi.bios.vendor: Acer
dmi.bios.version: v1.3503
dmi.board.name: Prespa1
dmi.board.vendor: Acer, Inc.
dmi.board.version: Not Applicable
dmi.chassis.type: 1
dmi.chassis.vendor: Acer, Inc.
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAcer:bvrv1.3503:bd03/03/07:svnAcer,inc.:pnAspire5580:pvrNotApplicable:rvnAcer,Inc.:rnPrespa1:rvrNotApplicable:cvnAcer,Inc.:ct1:cvrN/A:
dmi.product.name: Aspire 5580
dmi.product.version: Not Applicable
dmi.sys.vendor: Acer, inc.