BUG: unable to handle kernel paging request at 21b0001c

[Joseph]

Upgraded to latest on 03/29, restarted, then install VirtualBox additions, and restart again. Once I logged in, I got several kernel oops, and I am reporting the first one. This has happened on previous snapshots as well.

ProblemType: KernelOops
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-17-generic 2.6.32-17.26
Regression: No
Reproducible: No
TestedUpstream: No
ProcVersionSignature: Ubuntu 2.6.32-18.27-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-18-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Annotation: Your system might become unstable now and might need to be restarted.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: I82801AAICH [Intel 82801AA-ICH], device 0: Intel ICH [Intel 82801AA-ICH]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: jnader 1101 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'I82801AAICH'/'Intel 82801AA-ICH with STAC9700,83,84 at irq 21'
   Mixer name : 'SigmaTel STAC9700,83,84'
   Components : 'AC97a:83847600'
   Controls : 34
   Simple ctrls : 24
Date: Mon Mar 29 23:21:02 2010
Failure: oops
Frequency: Once a day.
HibernationDevice: RESUME=UUID=a55c9253-76cf-4a4b-aa59-7af71d96c366
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20091127)
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.
Lsusb:
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: innotek GmbH VirtualBox
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-18-generic root=UUID=9c7f8b55-65a5-44c2-b5b7-ad4f59786a30 ro quiet splash
RelatedPackageVersions: linux-firmware 1.33
RfKill:

SourcePackage: linux
Title: BUG: unable to handle kernel paging request at 21b0001c
dmi.bios.date: 12/01/2006
dmi.bios.vendor: innotek GmbH
dmi.bios.version: VirtualBox
dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:
dmi.product.name: VirtualBox
dmi.product.version: 1.2
dmi.sys.vendor: innotek GmbH