The latest Kernel
michael@eeebuntu:/var/log$ uname -a
Linux eeebuntu 3.0.0-12-generic #19-Ubuntu SMP Fri Sep 23 21:18:13 UTC 2011 i686 i686 i386 GNU/Linux
has about 10 Kernelpanics here. All happened on a eeepc 901 from Asus.
Because i have not found anything in /var/log/* i only have a picture from that panic.
Panics are happening with and without power-adapter plugged in
Please let me know if you need more infos
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: linux-image-3.0.0-12-generic 3.0.0-12.19
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 1.23-0ubuntu2
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: michael 1430 F.... pulseaudio
CRDA: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf7eb8000 irq 44'
Mixer name : 'Realtek ALC269'
Components : 'HDA:10ec0269,1043831a,00100004'
Controls : 12
Simple ctrls : 7
Date: Thu Oct 6 22:45:44 2011
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=3147250b-39a6-47ab-92dd-3ae71a43c9a8
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110426)
MachineType: ASUSTeK Computer INC. 901
ProcEnviron:
LANG=de_DE.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=797c12e0-f5e5-4b81-9464-0d8de0ce0a16 ro acpi_osi=Linux acpi_backlight=vendor quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.0.0-12-generic N/A
linux-backports-modules-3.0.0-12-generic N/A
linux-firmware 1.60
SourcePackage: linux
UpgradeStatus: Upgraded to oneiric on 2011-09-16 (20 days ago)
dmi.bios.date: 06/11/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2103
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: 901
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: x.xx
dmi.chassis.asset.tag: 0x00000000
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTek Computer INC.
dmi.chassis.version: x.x
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2103:bd06/11/2009:svnASUSTeKComputerINC.:pn901:pvrx.x:rvnASUSTeKComputerINC.:rn901:rvrx.xx:cvnASUSTekComputerINC.:ct10:cvrx.x:
dmi.product.name: 901
dmi.product.version: x.x
dmi.sys.vendor: ASUSTeK Computer INC.
I also see this or similar behaviour with both 2.6.40 kernel updates, but not 2.6.38.
Often the system doesn't drop to text mode, or the screen is scrambled with panic text overlaid. I also get a panic if I login in text-mode, but it usually takes longer.
The most common panic is "BUG: unable to handle kernel NULL pointer dereference", although sometimes it's "Not syncing".
/var/log/messages contains over 300 MiB of such text:
"BUG: scheduling while atomic: swapper"
"bad: scheduling from the idle thread!"
My system: Fedora 15 x86-64, Intel Core i7 940, Asus P6T Deluxe motherboard, NVIDIA 9800 GT graphics with default up-to-date nouveau driver, untainted kernel.
(Screen-shots and log extracts available on request.)
Gareth