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

[Diska]

after login unity don't start and apport show me kernel issue

ProblemType: KernelOops
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-5-generic 2.6.38-5.32
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.38-5.32-generic 2.6.38-rc6
Uname: Linux 2.6.38-5-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
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: diska 1391 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf5e00000 irq 44'
   Mixer name : 'Realtek ALC269'
   Components : 'HDA:10ec0269,104d4600,00100004'
   Controls : 12
   Simple ctrls : 7
Card1.Amixer.info:
 Card hw:1 'Generic'/'HD-Audio Generic at 0xf0040000 irq 45'
   Mixer name : 'ATI R6xx HDMI'
   Components : 'HDA:1002aa01,104d4600,00100200'
   Controls : 4
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Mon Mar 7 21:17:50 2011
Failure: oops
Frequency: This has only happened once.
HibernationDevice: RESUME=UUID=7cf2e44c-c218-4c78-8ea5-8776f08d4139
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110304)
MachineType: Sony Corporation VPCEB1Z1E
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-5-generic root=UUID=99756e44-4bfe-4262-b79c-055176855628 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-5-generic N/A
 linux-backports-modules-2.6.38-5-generic N/A
 linux-firmware 1.48
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: No upgrade log present (probably fresh install)
dmi.bios.date: 07/20/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: R0300Y8
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR0300Y8:bd07/20/2010:svnSonyCorporation:pnVPCEB1Z1E:pvrC6045YWV:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: VPCEB1Z1E
dmi.product.version: C6045YWV
dmi.sys.vendor: Sony Corporation

[Robert Roth (evfool)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug #728923, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.