BUG: Bad page map in process getty pte:d600000000 pmd:10196d067

After reboot from daily update on Ubuntu 11.04

ProblemType: KernelOops
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-7-generic 2.6.38-7.39
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
Uname: Linux 2.6.38-7-generic x86_64
NonfreeKernelModules: nvidia wl
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Annotation: Your system might become unstable now and might need to be restarted.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: bryancan 1859 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf6ffc000 irq 48'
   Mixer name : 'IDT 92HD71B7X'
   Components : 'HDA:111d76b2,10280251,00100302'
   Controls : 15
   Simple ctrls : 10
Date: Tue Apr 5 11:29:56 2011
Failure: oops
Frequency: This has only happened once.
HibernationDevice: RESUME=UUID=01de6950-51b9-4d2d-9235-d48aee9aa30e
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
MachineType: Dell Inc. Precision M6400
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-7-generic root=UUID=24474df1-6bdc-4f87-869d-fa930a7e6dbf ro splash vga=791 quiet quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-7-generic N/A
 linux-backports-modules-2.6.38-7-generic N/A
 linux-firmware 1.49
SourcePackage: linux
Title: BUG: Bad page map in process getty pte:d600000000 pmd:10196d067
UpgradeStatus: Upgraded to natty on 2011-04-04 (0 days ago)
dmi.bios.date: 08/11/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.name: 076V94
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA07:bd08/11/2009:svnDellInc.:pnPrecisionM6400:pvr:rvnDellInc.:rn076V94:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Precision M6400
dmi.sys.vendor: Dell Inc.