BUG: unable to handle kernel NULL pointer dereference at 00000040

[bill]

ProblemType: KernelOops
Annotation: Your system might become unstable now and might need to be restarted.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: VT82xx [HDA VIA VT82xx], device 0: ALC260 Analog [ALC260 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: VT82xx [HDA VIA VT82xx], device 0: ALC260 Analog [ALC260 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: bill 1731 F.... pulseaudio
CRDA: Error: [Errno 2] Arquivo ou diretório inexistente
Card0.Amixer.info:
 Card hw:0 'VT82xx'/'HDA VIA VT82xx at 0xcb000000 irq 17'
   Mixer name : 'Realtek ALC260'
   Components : 'HDA:10ec0260,10710205,00100400 HDA:14f12c06,14f10000,00100000'
   Controls : 13
   Simple ctrls : 7
Date: Sat Sep 26 16:06:16 2009
DistroRelease: Ubuntu 9.10
Failure: oops
HibernationDevice: RESUME=UUID=90a1b163-05b8-4396-9589-c3ab9785c24f
MachineType: MiTAC Notebook PC
Package: linux-image-2.6.31-11-generic 2.6.31-11.36
ProcCmdLine: root=UUID=99195575-9eff-4520-b3f3-36f3f1c00a4c ro quiet splash
ProcVersionSignature: Ubuntu 2.6.31-11.36-generic
RelatedPackageVersions: linux-firmware 1.19
RfKill:
 0: phy1: Wireless LAN
  Soft blocked: yes
  Hard blocked: no
SourcePackage: linux
Tags: kernel-oops
Title: BUG: unable to handle kernel NULL pointer dereference at 00000040
Uname: Linux 2.6.31-11-generic i686
WpaSupplicantLog:

dmi.bios.date: 06/28/2007
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: R1.05
dmi.board.asset.tag: Tag 12345
dmi.board.name: Notebook PC
dmi.board.vendor: MiTAC
dmi.board.version: VT6363A
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 1
dmi.chassis.vendor: MiTAC
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrR1.05:bd06/28/2007:svnMiTAC:pnNotebookPC:pvrVT6363A:rvnMiTAC:rnNotebookPC:rvrVT6363A:cvnMiTAC:ct1:cvrN/A:
dmi.product.name: Notebook PC
dmi.product.version: VT6363A
dmi.sys.vendor: MiTAC