kernel BUG at /build/buildd/linux-2.6.38/fs/inode.c:1422!

I experienced nothing to be honest. the screen went black due to idleness, when moved the mouse the bug report came up. Also like to point out here, that the last dialog in the Critical System Bug process, that asks a Yes or No question, has no text, so I clicked Yes even though I didn't know what the question was.

ProblemType: KernelOops
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-5-generic-pae 2.6.38-5.32
Regression: No
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.38-5.32-generic-pae 2.6.38-rc6
Uname: Linux 2.6.38-5-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
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: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: deuce 1638 F.... pulseaudio
                      deuce 5150 F.... spotify.exe
 /dev/snd/pcmC0D0p: deuce 1638 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf5e00000 irq 44'
   Mixer name : 'Realtek ALC269'
   Components : 'HDA:10ec0269,104d4600,00100004'
   Controls : 12
   Simple ctrls : 7
Card1.Amixer.info:
 Card hw:1 'Generic'/'HD-Audio Generic at 0xf0040000 irq 45'
   Mixer name : 'ATI R6xx HDMI'
   Components : 'HDA:1002aa01,104d4600,00100200'
   Controls : 4
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Sun Mar 6 11:48:53 2011
Failure: oops
Frequency: This has only happened once.
HibernationDevice: RESUME=UUID=689f5ad5-3602-4488-a787-bb94a9d9337f
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
Lsusb:
 Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 001 Device 003: ID 0c45:6464 Microdia
 Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Sony Corporation VPCEB3C5E
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-5-generic-pae root=UUID=5ea49c82-a867-470a-87f3-d50d22d572a6 ro i8042.nopnp quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-5-generic-pae N/A
 linux-backports-modules-2.6.38-5-generic-pae N/A
 linux-firmware 1.48
SourcePackage: linux
Title: kernel BUG at /build/buildd/linux-2.6.38/fs/inode.c:1422!
UpgradeStatus: Upgraded to natty on 2011-02-26 (7 days ago)
dmi.bios.date: 10/06/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: R1140Y8
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR1140Y8:bd10/06/2010:svnSonyCorporation:pnVPCEB3C5E:pvrC607F8BE:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: VPCEB3C5E
dmi.product.version: C607F8BE
dmi.sys.vendor: Sony Corporation