BUG: unable to handle kernel NULL pointer dereference at (null)
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Medium
|
Brian Rogers | ||
Bug Description
SRU Justification:
Impact: Kernel oops occurs whenever the LIRC daemon loads.
Fix: Apply patch to check for NULL pointer dereference (see comment #5)
Testcase: Confirm kernel oops occurs prior to patch being applied. Confirm kernel oops no longer occurs after patch applied.
=====
When my system starts, I get an oops in dmesg, which appears to be related to the IR receiver in my TV tuner. This problem didn't happen in Lucid's 2.6.32 kernel. So far I haven't witnessed any harmful effects.
It crashes whenever the LIRC daemon loads. To reproduce the error, I just have to reboot my system. My TV tuner is saa7134-based, and is called "MSI TVAnywhere Plus."
ProblemType: KernelOops
DistroRelease: Ubuntu 10.10
Package: linux-image-
Regression: Yes
Reproducible: Yes
ProcVersionSign
Uname: Linux 2.6.35-19-generic x86_64
NonfreeKernelMo
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
Card0.Amixer.info:
Card hw:0 'CK804'/'NVidia CK804 with ALC850 at irq 22'
Mixer name : 'Realtek ALC850 rev 0'
Components : 'AC97a:414c4790'
Controls : 42
Simple ctrls : 27
Card2.Amixer.info:
Card hw:2 'SAA7134'
Mixer name : 'SAA7134 Mixer'
Components : ''
Controls : 6
Simple ctrls : 3
Date: Thu Aug 26 07:45:26 2010
Failure: oops
HibernationDevice: RESUME=
Lsusb:
Bus 002 Device 004: ID 046d:c00e Logitech, Inc. M-BJ58/M-BJ69 Optical Wheel Mouse
Bus 002 Device 003: ID 046d:c312 Logitech, Inc. DeLuxe 250 Keyboard
Bus 002 Device 002: ID 1131:1001 Integrated System Solution Corp. KY-BT100 Bluetooth Adapter
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Unknow Unknow
ProcCmdLine: BOOT_IMAGE=
RelatedPackageV
SourcePackage: linux
Title: BUG: unable to handle kernel NULL pointer dereference at (null)
WpaSupplicantLog:
dmi.bios.date: 11/14/2007
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 6.00 PG
dmi.board.name: KN9 Series(NF-CK804)
dmi.board.vendor: http://
dmi.board.version: 1.x
dmi.chassis.type: 3
dmi.chassis.vendor: Unknow
dmi.modalias: dmi:bvnPhoenixT
dmi.product.name: Unknow
dmi.product.
dmi.sys.vendor: Unknow
description: | updated |
Changed in linux (Ubuntu): | |
assignee: | nobody → Brian Rogers (brian-rogers) |
description: | updated |
description: | updated |
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
status: | New → Triaged |
tags: | added: patch |
2.6.35-18.24 is good
2.6.35-19.25 is bad
Mainline 2.6.36-rc3 is also bad.
Therefore, this is the suspect commit:
UBUNTU: SAUCE: Update ir-core to linuxtv/other which should be merged for 2.6.36.
BugLink: http:// bugs.launchpad. net/bugs/ 609234
Patch generated from the linuxtv staging/other branch, with a few
additional pending fixes merged in, and just about everything not
essential to the ir-core update chopped out.
(Patch generated 2010.07.16)
Signed-off-by: Jarod Wilson <email address hidden>
Signed-off-by: Mario Limonciello <email address hidden>>
Acked-by: Tim Gardner <email address hidden>
Signed-off-by: Leann Ogasawara <email address hidden>