Public bug reported:
I was transferring some files from my PC to my mobile phone which was
connected by USB cable. After I had finished I right mouse-clicked on
the drive icon in the Unity launcher and selected "Safely Remove".
My display corrupted severely and froze. For a while I could not change
to a tty with Ctrl-Alt-F1 etc. Eventually I found I could and when I
switched back to Unity with Ctrl-Alt-F7 I found that my display was
normal and there was a prompt to say that my system may be unstable.
ProblemType: KernelOops
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-15-generic-pae 3.2.0-15.24
ProcVersionSignature: Ubuntu 3.2.0-15.24-generic-pae 3.2.5
Uname: Linux 3.2.0-15-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
Annotation: Your system might become unstable now and might need to be
restarted.
ApportVersion: 1.91-0ubuntu1
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: paul 4491 F.... pulseaudio
/dev/snd/controlC1: paul 4491 F.... pulseaudio
/dev/snd/controlC0: paul 4491 F.... pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not
found.
Card0.Amixer.info:
Card hw:0 'ICH6'/'Intel ICH6 with AD1980 at irq 23'
Mixer name : 'Analog Devices AD1980'
Components : 'AC97a:41445370'
Controls : 40
Simple ctrls : 29
Card1.Amixer.info:
Card hw:1 'Audigy2'/'SB Audigy 2 [SB0350b] (rev.4, serial:0x20061102) at
0xc8c0, irq 16'
Mixer name : 'SigmaTel STAC9750,51'
Components : 'AC97a:83847650'
Controls : 211
Simple ctrls : 46
Card2.Amixer.info:
Card hw:2 'HDMI'/'HDA ATI HDMI at 0xdfdec000 irq 44'
Mixer name : 'ATI R6xx HDMI'
Components : 'HDA:1002aa01,00aa0100,00100100'
Controls : 6
Simple ctrls : 1
Card2.Amixer.values:
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
Date: Sun Feb 12 19:05:04 2012
Failure: oops
HibernationDevice: RESUME=UUID=d86521c6-d9e1-4bff-a69a-c9179a733212
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111011)
IwConfig:
lo no wireless extensions.
eth0 no wireless extensions.
MachineType: Dell Inc. Dimension 8400
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-15-generic-pae
root=UUID=20d0372f-af5d-4052-9527-6571ce4d0ca0 ro quiet splash vt.handoff=7
PulseSinks: Error: command ['pacmd', 'list-sinks'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
PulseSources: Error: command ['pacmd', 'list-sources'] failed with exit code 1:
No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions: kerneloops-daemon 0.12+git20090217-1ubuntu18
RfKill:
SourcePackage: linux
Title: BUG: unable to handle kernel NULL pointer dereference at 00000004
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/07/2006
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A09
dmi.board.name: 0U7077
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 6
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA09:bd07/07/2006:svnDellInc.:pnDimension8400:pvr:rvnDellInc.:rn0U7077:rvr:cvnDellInc.:ct6:cvr:
dmi.product.name: Dimension 8400
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-kerneloops i386 kernel-oops precise
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https://bugs.launchpad.net/bugs/931098
Title:
BUG: unable to handle kernel NULL pointer dereference at 00000004
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