Kernel BUG: unable to handle kernel paging request at ffffffffa03ff521

[Shaun Crampton]

Just after reboot with a new kernel, I saw a Kernel Oops/BUG scroll up the screen. light dm didn't load properly (I saw the mouse overlaid over the kernel Oops text instead of the user picker) and Ctrl-Alt-F1 made the mouse disappear but didn't give me a console so I had to do a hard reboot. The computer then booted successfully.

I've attached the dmesg output from the failed bootup since I'm not sure if it reproduced in the current boot dmesg.

I've seen the mouse-over-text problem before but I thought it was resolved after upgrade to Raring (tracked by Bug 1094567).

I'm running a Samsung NP900X4C-A03US laptop.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-image-3.8.0-19-generic 3.8.0-19.30
ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: shaun 1937 F.... pulseaudio
Date: Sat May 4 10:12:09 2013
HibernationDevice: RESUME=UUID=e9e7a3d6-2d7f-4d2d-8880-ace10b4a942f
InstallationDate: Installed on 2012-09-26 (220 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120905.2)
MachineType: SAMSUNG ELECTRONICS CO., LTD. 900X3C/900X3D/900X4C/900X4D
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB:
 0 inteldrmfb
 1 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-19-generic root=/dev/mapper/ubuntu-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.8.0-19-generic N/A
 linux-backports-modules-3.8.0-19-generic N/A
 linux-firmware 1.106
SourcePackage: linux
UpgradeStatus: Upgraded to raring on 2013-04-26 (8 days ago)
dmi.bios.date: 07/12/2012
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: P03AAC
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: SAMSUNG_NP1234567890
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP03AAC:bd07/12/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn900X3C/900X3D/900X4C/900X4D:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.name: 900X3C/900X3D/900X4C/900X4D
dmi.product.version: 0.1
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Are you able to reproduce this bug, or was it a one time event?

[Shaun Crampton (fasaxc)]

It didn't reproduce in 3-4 reboots.

[penalvch (penalvch)]

Shaun Crampton, this bug report is being closed due to your last comment https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1176380/comments/4 regarding this being fixed with an update. For future reference you can manage the status of your own bugs by clicking on the current status in the yellow line and then choosing a new status in the revealed drop down box. You can learn more about bug statuses at https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time to report this bug and helping to make Ubuntu better. Please submit any future bugs you may find.