Crash while mounting ext2 file system

Inserting a SD with ext2 file system in a DELL Mini10v with Karmic Koala I got in a Crash:

WARNING: at /build/buildd/linux-2.6.31/fs/buffer.c:1152 mark_buffer_dirty+0x70/0x90()

ProblemType: KernelOops
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: ALC272 Analog [ALC272 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: x 1706 F.... pulseaudio
CRDA: Error: [Errno 2] Nessun file o directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf0440000 irq 22'
   Mixer name : 'Realtek ALC272'
   Components : 'HDA:10ec0272,102802f4,00100001'
   Controls : 9
   Simple ctrls : 5
Date: Sun Oct 18 22:33:51 2009
DistroRelease: Ubuntu 9.10
Failure: oops
MachineType: Dell Inc. Inspiron 1011
NonfreeKernelModules: wl
Package: linux-image-2.6.31-14-generic 2.6.31-14.48
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-14-generic root=UUID=bf4a3538-929c-43b8-a229-e2c29e982acb ro quiet splash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
RelatedPackageVersions:
 linux-backports-modules-2.6.31-14-generic N/A
 linux-firmware 1.24
SourcePackage: linux
Tags: kernel-oops ubuntu-unr
Title: WARNING: at /build/buildd/linux-2.6.31/fs/buffer.c:1152 mark_buffer_dirty+0x70/0x90()
Uname: Linux 2.6.31-14-generic i686
dmi.bios.date: 07/29/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A06
dmi.board.name: CN0Y53
dmi.board.vendor: Dell Inc.
dmi.board.version: A06
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A06
dmi.modalias: dmi:bvnDellInc.:bvrA06:bd07/29/2009:svnDellInc.:pnInspiron1011:pvrA06:rvnDellInc.:rnCN0Y53:rvrA06:cvnDellInc.:ct8:cvrA06:
dmi.product.name: Inspiron 1011
dmi.product.version: A06
dmi.sys.vendor: Dell Inc.