Kernel Oops - BUG: unable to handle kernel NULL pointer dereference at 00000000000000f0; RIP: 0010:[<ffffffff8103db09>] [<ffffffff8103db09>] __ticket_spin_lock+0x9/0x30

[giorgio130]

A device got disconnected while I was emptying the trash, probably this is the cause.

ProblemType: KernelOops
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-23-generic 3.2.0-23.36
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
Annotation: Your system might become unstable now and might need to be restarted.
ApportVersion: 2.0.1-0ubuntu1
Architecture: amd64
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: giorgio 2501 F.... pulseaudio
CRDA:
 country GB:
  (2402 - 2482 @ 40), (N/A, 20)
  (5170 - 5250 @ 40), (N/A, 20)
  (5250 - 5330 @ 40), (N/A, 20), DFS
  (5490 - 5710 @ 40), (N/A, 27), DFS
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf2500000 irq 49'
   Mixer name : 'Nvidia MCP77/78 HDMI'
   Components : 'HDA:10ec0268,14c00031,00100003 HDA:11c11040,11c10001,00100200 HDA:10de0006,10de0101,00100000'
   Controls : 20
   Simple ctrls : 10
Date: Wed Apr 18 08:49:17 2012
Failure: oops
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic root=UUID=91306d31-6c56-4c78-bd6d-ebd57ddc3b3c ro quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions: kerneloops-daemon 0.12+git20090217-1ubuntu18
SourcePackage: linux
Title: BUG: unable to handle kernel NULL pointer dereference at 00000000000000f0
UpgradeStatus: Upgraded to precise on 2012-04-11 (6 days ago)
dmi.bios.date: 07/08/2008
dmi.bios.vendor: COMPAL
dmi.bios.version: 1.04
dmi.board.name: JHL90
dmi.board.vendor: COMPAL
dmi.board.version: REFERENCE
dmi.chassis.type: 1
dmi.chassis.vendor: COMPAL
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnCOMPAL:bvr1.04:bd07/08/2008:svnCOMPAL:pn:pvr:rvnCOMPAL:rnJHL90:rvrREFERENCE:cvnCOMPAL:ct1:cvrN/A:
dmi.sys.vendor: COMPAL