BUG: unable to handle kernel paging request at 21b0001c

[Serenak]

Installed Lucid in new VM in Virtual Box - attempted to install Guest Add Ons - Lucid went to low graphics and reported Kernel Oops

ProblemType: KernelOops
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: serenak 1263 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 5'
   Mixer name : 'SigmaTel STAC9700,83,84'
   Components : 'AC97a:83847600'
   Controls : 34
   Simple ctrls : 24
Date: Mon Mar 22 23:51:00 2010
DistroRelease: Ubuntu 10.04
Failure: oops
Frequency: This has only happened once.
HibernationDevice: RESUME=UUID=9e1e2f84-7900-4fbb-b4fb-ef9222be5b54
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta i386 (20100318)
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
Package: linux-image-2.6.32-16-generic 2.6.32-16.25
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-16-generic root=UUID=18c5eea9-6293-4770-bfc5-9d0135b43eb9 ro quiet splash
ProcVersionSignature: Ubuntu 2.6.32-16.25-generic
Regression: Yes
RelatedPackageVersions: linux-firmware 1.32
Reproducible: No
RfKill:

SourcePackage: linux
TestedUpstream: No
Title: BUG: unable to handle kernel paging request at 21b0001c
Uname: Linux 2.6.32-16-generic i686
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

[Serenak (serenakster)]

I am a relatively new Ubuntu user - since Hardy - and I am not familiar with bug reporting - I hope I did it OK...