[231712.820564] kernel BUG at /build/buildd/linux-2.6.35/fs/btrfs/extent-tree.c:5151!

problem with installing libc6.

ProblemType: KernelOops
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-19-generic 2.6.35-19.28
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.35-19.28-generic 2.6.35.3
Uname: Linux 2.6.35-19-generic i686
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: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 2/2
   Subdevice #0: subdevice #0
   Subdevice #1: subdevice #1
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: am 1705 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf6fdc000 irq 47'
   Mixer name : 'IDT 92HD71B7X'
   Components : 'HDA:111d76b2,10280250,00100302'
   Controls : 20
   Simple ctrls : 14
Date: Tue Sep 7 06:10:32 2010
Failure: oops
Frequency: I don't know.
HibernationDevice: RESUME=UUID=f2c06c1e-e9a2-470a-908e-29c0dd6e5558
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Alpha i386 (20100830)
MachineType: Dell Inc. Precision M4400
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.35-19-generic root=/dev/sda3 ro single
RelatedPackageVersions: linux-firmware 1.38
RfKill:
 0: dell-wifi: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
Title: [231712.820554] ------------[ cut here ]------------
dmi.bios.date: 05/06/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A22
dmi.board.name: 0NY980
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA22:bd05/06/2010:svnDellInc.:pnPrecisionM4400:pvr:rvnDellInc.:rn0NY980:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Precision M4400
dmi.sys.vendor: Dell Inc.