Public bug reported:

I have loaded a large picture into firefox and then suddenly the system turned 
into shutdown screen but nothing happened further. So after pressing the power 
button for 5 seconds, i rebooted the machine and looked into the log file.
At the time the system crashed there were some lines repeating errors about 
[drm] noveau:

Dec 11 21:56:28 vulcanus kernel: [49907.204830] [drm] nouveau 0000:01:00.0: 
PGRAPH_ERROR - nSource: ILLEGAL_MTHD, nStatus: PROTECTION_FAULT
Dec 11 21:56:28 vulcanus kernel: [49907.204839] [drm] nouveau 0000:01:00.0: 
PGRAPH_ERROR - Ch 1/7 Class 0x0019 Mthd 0x02fc Data 0x00000000:0x00000003

and so on. I think it was there but i can't say it exactly. And i also
don't know if the picture was responsible for this.

also VLC  and Virtualbox ran at the same time as firefox while this
happened.

faulty.txt --> The Kernel log around the time the crash happened.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-26-generic 2.6.32-26.48
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.32-26.48-generic 2.6.32.24+drm33.11
Uname: Linux 2.6.32-26-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  bibo       1416 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xd2400000 irq 22'
   Mixer name   : 'Analog Devices AD1986A'
   Components   : 'HDA:11d41986,17aa2066,00100500 
HDA:11c11040,11c10001,00100200'
   Controls      : 20
   Simple ctrls  : 11
Date: Sun Dec 12 09:52:35 2010
Frequency: This has only happened once.
HibernationDevice: RESUME=UUID=d559d8f5-7095-4cf7-baee-fc2e45aa2b93
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
MachineType: LENOVO 0768BJG
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-26-generic 
root=UUID=9dbeb648-0fa7-40a0-abed-9a069e2355da ro quiet splash
ProcEnviron:
 LANG=de_AT.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34.1
SourcePackage: linux
dmi.bios.date: 06/04/07
dmi.bios.vendor: LENOVO
dmi.bios.version: 61ET37WW
dmi.board.name: CAPELL VALLEY(NAPA) CRB
dmi.board.vendor: LENOVO
dmi.board.version: Not Applicable
dmi.chassis.type: 10
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias: 
dmi:bvnLENOVO:bvr61ET37WW:bd06/04/07:svnLENOVO:pn0768BJG:pvr3000N100:rvnLENOVO:rnCAPELLVALLEY(NAPA)CRB:rvrNotApplicable:cvnNoEnclosure:ct10:cvrN/A:
dmi.product.name: 0768BJG
dmi.product.version: 3000 N100
dmi.sys.vendor: LENOVO

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug graphics i386 lucid needs-upstream-testing 
regression-potential

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https://bugs.launchpad.net/bugs/689194

Title:
  drm noveau error while loading a huge picture

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