[1266874882.222047] BUG: soft lockup - CPU

it shows so

ProblemType: KernelOops
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 2/2
   Subdevice #0: subdevice #0
   Subdevice #1: subdevice #1
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: sriram 2469 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf0b00000 irq 22'
   Mixer name : 'IDT 92HD73C1X5'
   Components : 'HDA:111d7675,10280413,00100103'
   Controls : 32
   Simple ctrls : 20
Card1.Amixer.info:
 Card hw:1 'Generic'/'HD-Audio Generic at 0xcfedc000 irq 17'
   Mixer name : 'ATI R6xx HDMI'
   Components : 'HDA:1002aa01,00aa0100,00100200'
   Controls : 4
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined
   Playback channels: Mono
   Mono: Playback [off]
Date: Wed Jul 7 16:12:16 2010
DistroRelease: Ubuntu 9.10
Failure: oops
HibernationDevice: RESUME=UUID=3b3a4ad4-7a4b-4a6c-82e5-03b21d00ee70
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
MachineType: Dell Inc. Studio 1558
NonfreeKernelModules: wl fglrx
Package: linux-image-2.6.31-14-generic 2.6.31-14.48
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-14-generic root=UUID=3a5b7d00-c73c-4c57-a91a-f307048447d4 ro quiet splash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
RelatedPackageVersions:
 linux-backports-modules-2.6.31-14-generic N/A
 linux-firmware 1.24
SourcePackage: linux
Tags: kernel-oops
Title: [1266874882.222047] BUG: soft lockup - CPU#1 stuck for 0s! [swapper:0]
Uname: Linux 2.6.31-14-generic i686
dmi.bios.date: 03/11/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A04
dmi.board.name: 0874P6
dmi.board.vendor: Dell Inc.
dmi.board.version: A04
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A04
dmi.modalias: dmi:bvnDellInc.:bvrA04:bd03/11/2010:svnDellInc.:pnStudio1558:pvrA04:rvnDellInc.:rn0874P6:rvrA04:cvnDellInc.:ct8:cvrA04:
dmi.product.name: Studio 1558
dmi.product.version: A04
dmi.sys.vendor: Dell Inc.