BUG: scheduling while atomic: run-mozilla.sh/2625/0x10000001

[geert]

since using ubuntu 10.10 I have (every 20-30 min) the warning: your system .... a serious kernel crash.
However the system still works fine but sometimes the whole screen becomes gray and there is no response from mouse, etc ... for several seconds ...

ProblemType: KernelOops
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-16-generic 2.6.35-16.22
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.35-16.22-generic 2.6.35.2
Uname: Linux 2.6.35-16-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
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: ALC268 Analog [ALC268 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: gdb 1535 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0x78540000 irq 45'
   Mixer name : 'Realtek ALC268'
   Components : 'HDA:10ec0268,1025015b,00100101'
   Controls : 8
   Simple ctrls : 5
Date: Sun Aug 22 10:11:39 2010
Failure: oops
Frequency: Once a day.
HibernationDevice: RESUME=UUID=9ce9b04f-d4f5-468c-a2e7-0e103069a095
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Alpha i386 (20100803.1)
MachineType: Acer AOA150
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-16-generic root=UUID=eba84ca1-0965-488b-a7c8-08bc720f6dda ro quiet splash
RelatedPackageVersions: linux-firmware 1.38
SourcePackage: linux
Title: BUG: scheduling while atomic: run-mozilla.sh/2625/0x10000001
dmi.bios.date: 05/09/2008
dmi.bios.vendor: Acer
dmi.bios.version: v0.3305
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.vendor: Acer
dmi.board.version: Base Board Version
dmi.chassis.type: 1
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAcer:bvrv0.3305:bd05/09/2008:svnAcer:pnAOA150:pvr1:rvnAcer:rn:rvrBaseBoardVersion:cvnChassisManufacturer:ct1:cvrChassisVersion:
dmi.product.name: AOA150
dmi.product.version: 1
dmi.sys.vendor: Acer