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[MarcS <897821@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Launching Firefox (from the KDE panel) sporadically causes a kernel Oops (Null pointer dereference) in drm_debugfs_remove_files (output is attached). 
The system continues to run, and after returning to the desktop session by switching away from the vt and back again, Firefox is actually running.

$ lsb_release -rd
Description:    Ubuntu 11.10
Release:        11.10

$ apt-cache policy xserver-xorg-video-nouveau
xserver-xorg-video-nouveau:
  Installed: 1:0.0.16+git20110411+8378443-1
  Candidate: 1:0.0.16+git20110411+8378443-1
  Version table:
 *** 1:0.0.16+git20110411+8378443-1 0
        500 http://de.archive.ubuntu.com/ubuntu/ oneiric/main i386 Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1
ProcVersionSignature: Ubuntu 3.0.0-13.22-generic-pae 3.0.6
Uname: Linux 3.0.0-13-generic-pae i686
ApportVersion: 1.23-0ubuntu4
Architecture: i386
Date: Tue Nov 29 20:09:59 2011
EcryptfsInUse: Yes
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: xserver-xorg-video-nouveau
UpgradeStatus: Upgraded to oneiric on 2011-10-13 (47 days ago)

** Affects: xserver-xorg-video-nouveau (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 oneiric

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https://bugs.launchpad.net/bugs/897821

Title:
  Null pointer dereference in drm_debugfs_remove_files

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