BUG: unable to handle kernel paging request at ffff88ffcfd9e258

I'm not sure if this is a duplicate of another "unable to handle kernel paging request...at address". In case it is different, I've left it separate.

I just did a fresh install of karmic 9.10, did all of the updates.
What I was doing before the crash: a full backup of my /home drive using rsync (~450 GB). It finished successfully, but maybe contributed to this error?

Eddie

ProblemType: KernelOops
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: john 1949 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfe3f4000 irq 22'
   Mixer name : 'Intel G45 DEVELK'
   Components : 'HDA:10ec0888,104382fe,00100101 HDA:80862803,80860101,00100000'
   Controls : 44
   Simple ctrls : 23
Date: Sun Oct 18 06:59:05 2009
DistroRelease: Ubuntu 9.10
Failure: oops
HibernationDevice: RESUME=UUID=01a0a8f0-545f-4c95-8130-8ec917cb1c95
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.
MachineType: System manufacturer System Product Name
Package: linux-image-2.6.31-14-generic 2.6.31-14.48
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.31-14-generic root=UUID=b5891c72-4623-4745-aa1c-b51e040e1efb ro quiet splash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
RelatedPackageVersions:
 linux-backports-modules-2.6.31-14-generic N/A
 linux-firmware 1.23
RfKill:

SourcePackage: linux
Tags: kernel-oops
Title: BUG: unable to handle kernel paging request at ffff88ffcfd9e258
Uname: Linux 2.6.31-14-generic x86_64
dmi.bios.date: 10/09/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0412
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P5QL-EM
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0412:bd10/09/2008:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5QL-EM:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer