[Bug 566244] [NEW] kernel crashes ``out of the blue''

[Thomas Schwinge]

Public bug reported:

Binary package hint: linux-image-2.6.32-21-generic

On my T42, with linux-image-2.6.32-21-generic 2.6.32-21.31, I've seen the
kernel crash two times within one day, ``out of the blue'' while doing
``normal work''.  Only the [A] LED was blinking, otherwise the system was
completey frozen.  Magic SysRQ did work for syncing, unmounting,
rebooting.  What I noticed is that the WLAN activity LED was lit when
crashing, so it may be a problem in the WLAN driver (but that is just a
random guess).

Yesterday, I have upgraded to 2.6.32-21.32.  Just now, the system crashed
once more in exactly the same way.

As for all other packages, this is an up-to-date Ubuntu (pre-)lucid
system.

I'll try to build a mainline kernel,
<https://wiki.ubuntu.com/KernelTeam/MainlineBuilds>.  Anything else I can
do?  How to see a kernel crash message, for example?  (This system
doesn't have a serial console.)

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-21-generic 2.6.32-21.32
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  thomas     1528 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'I82801DBICH4'/'Intel 82801DB-ICH4 with AD1981B at irq 11'
   Mixer name	: 'Analog Devices AD1981B'
   Components	: 'AC97a:41445374'
   Controls      : 26
   Simple ctrls  : 18
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 1RHT71WW-3.04'
   Mixer name	: 'ThinkPad EC 1RHT71WW-3.04'
   Components	: ''
   Controls      : 2
   Simple ctrls  : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
   Playback channels: Mono
   Limits: Playback 0 - 14
   Mono: Playback 14 [100%] [off]
Date: Sun Apr 18 23:12:49 2010
Frequency: Once a day.
HibernationDevice: RESUME=UUID=b8332f71-7051-423b-9839-246fdb375027
Lsusb:
 Bus 004 Device 002: ID 0483:2016 SGS Thomson Microelectronics Fingerprint Reader
 Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 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: IBM 2373K9G
PccardctlIdent:
 Socket 0:
   no product info available
 Socket 1:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
 Socket 1:
   no card
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-21-generic root=/dev/mapper/vg0-hostname--root ro quiet splash
RelatedPackageVersions: linux-firmware 1.34
SourcePackage: linux
WpaSupplicantLog:
 
dmi.bios.date: 06/18/2007
dmi.bios.vendor: IBM
dmi.bios.version: 1RETDRWW (3.23 )
dmi.board.name: 2373K9G
dmi.board.vendor: IBM
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: IBM
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnIBM:bvr1RETDRWW(3.23):bd06/18/2007:svnIBM:pn2373K9G:pvrThinkPadT42:rvnIBM:rn2373K9G:rvrNotAvailable:cvnIBM:ct10:cvrNotAvailable:
dmi.product.name: 2373K9G
dmi.product.version: ThinkPad T42
dmi.sys.vendor: IBM

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


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

-- 
kernel crashes ``out of the blue''
https://bugs.launchpad.net/bugs/566244
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