WARNING: at /build/buildd/linux-2.6.31/fs/notify/inotify/inotify_user.c:398 inotify_remove_from_idr+0x7e/0x90()

Apport simply comes up with this. Unsure what has happened.

ProblemType: KernelOops
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: xavier 3655 F.... pulseaudio
                      kde-devel 21404 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'ICH5'/'Intel ICH5 with AD1981B at irq 17'
   Mixer name : 'Analog Devices AD1981B'
   Components : 'AC97a:41445374'
   Controls : 34
   Simple ctrls : 23
Date: Sat Sep 19 09:40:58 2009
DistroRelease: Ubuntu 9.10
Failure: oops
HibernationDevice: RESUME=
IwConfig:
 lo no wireless extensions.

 eth1 no wireless extensions.

 vboxnet0 no wireless extensions.
MachineType: IBM 817513B
Package: linux-image-2.6.31-10-generic 2.6.31-10.34
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-10-generic root=UUID=7b8e08c6-0dde-4e60-96e1-59c900a2ca03 ro quiet splash
ProcVersionSignature: Ubuntu 2.6.31-10.34-generic
RelatedPackageVersions:
 linux-backports-modules-2.6.31-10-generic N/A
 linux-firmware 1.19
RfKill:

SourcePackage: linux
Tags: kernel-oops
Title: [171004.314821] ------------[ cut here ]------------
Uname: Linux 2.6.31-10-generic i686
WpaSupplicantLog:

dmi.bios.date: 10/26/2004
dmi.bios.vendor: IBM
dmi.bios.version: 2CKT20AUS
dmi.board.name: D865GKD
dmi.board.vendor: Intel
dmi.chassis.asset.tag: Tag 567890123456789012345
dmi.chassis.type: 6
dmi.chassis.vendor: IBM
dmi.modalias: dmi:bvnIBM:bvr2CKT20AUS:bd10/26/2004:svnIBM:pn817513B:pvrThinkCentreXXXX:rvnIntel:rnD865GKD:rvr:cvnIBM:ct6:cvr:
dmi.product.name: 817513B
dmi.product.version: ThinkCentre XXXX
dmi.sys.vendor: IBM