WARNING: at /build/buildd/linux-2.6.38/drivers/gpu/drm/radeon/radeon_fence.c:248 radeon_fence_wait+0x36f/0x3e0 [radeon]()

[andrei]

in Unity plugin from compiz I changed the Dash blur from no blur to static blur then I clicked ubuntu logo to open dash and the system crashed

ProblemType: KernelOops
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-8-generic 2.6.38-8.42
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: andrei 1865 F.... pulseaudio
 /dev/snd/controlC0: andrei 1865 F.... pulseaudio
 /dev/snd/pcmC0D0p: andrei 1865 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf5000000 irq 46'
   Mixer name : 'Realtek ALC662 rev1'
   Components : 'HDA:10ec0662,1458a002,00100101'
   Controls : 34
   Simple ctrls : 18
Card1.Amixer.info:
 Card hw:1 'U0x46d0x805'/'USB Device 0x46d:0x805 at usb-0000:00:1a.7-5, high speed'
   Mixer name : 'USB Mixer'
   Components : 'USB046d:0805'
   Controls : 2
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'Mic',0
   Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
   Capture channels: Mono
   Limits: Capture 0 - 6144
   Mono: Capture 3077 [50%] [18.01dB] [off]
Card2.Amixer.info:
 Card hw:2 'HDMI'/'HDA ATI HDMI at 0xf1010000 irq 47'
   Mixer name : 'ATI R6xx HDMI'
   Components : 'HDA:1002aa01,00aa0100,00100000'
   Controls : 4
   Simple ctrls : 1
Card2.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Tue Apr 19 23:30:35 2011
Failure: oops
HibernationDevice: RESUME=UUID=a045872a-ea57-4ec2-8bdd-30d7f21f53c3
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.
MachineType: Gigabyte Technology Co., Ltd. G33M-S2L
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=b74271d9-bf1b-46ee-96cb-e05bbd126753 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-8-generic N/A
 linux-backports-modules-2.6.38-8-generic N/A
 linux-firmware 1.50
RfKill:

SourcePackage: linux
Title: WARNING: at /build/buildd/linux-2.6.38/drivers/gpu/drm/radeon/radeon_fence.c:248 radeon_fence_wait+0x36f/0x3e0 [radeon]()
UpgradeStatus: Upgraded to natty on 2011-04-19 (0 days ago)
dmi.bios.date: 11/20/2007
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F2
dmi.board.name: G33M-S2L
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF2:bd11/20/2007:svnGigabyteTechnologyCo.,Ltd.:pnG33M-S2L:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnG33M-S2L:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: G33M-S2L
dmi.sys.vendor: Gigabyte Technology Co., Ltd.