Random kernel panic

[René Zurita Corro]

So far I have experienced random kernel panic with the new kernel 3 which did't happen using kernel 2.6, I'm under the impression it happens when the laptop is not plugged in, the main symptom is that any sound being playing at the time of the kernel panic gets stuck on a particular second repeating it after which ubuntu switches to console mode and caps lock key are flashing.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: linux-image-3.0.0-12-generic 3.0.0-12.20
ProcVersionSignature: Ubuntu 3.0.0-12.20-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: ALC269VB Analog [ALC269VB Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
ApportVersion: 1.23-0ubuntu3
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269VB Analog [ALC269VB Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: rene 1608 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfeb00000 irq 41'
   Mixer name : 'Realtek ALC269VB'
   Components : 'HDA:10ec0269,104d4a00,00100100'
   Controls : 14
   Simple ctrls : 9
Date: Thu Oct 20 14:37:36 2011
HibernationDevice: RESUME=UUID=2bd0334b-7aca-4a0f-98b5-574ce45b7928
InstallationMedia: Ubuntu-Netbook 10.10 "Maverick Meerkat" - Release i386 (20101007)
MachineType: Sony Corporation VPCM120AL
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.0.0-12-generic root=UUID=872d844c-990c-4282-972d-920d7edc6d93 ro 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 2011-10-14 (6 days ago)
dmi.bios.date: 05/12/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: R0120Z4
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR0120Z4:bd05/12/2010:svnSonyCorporation:pnVPCM120AL:pvrC6X0466U:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: VPCM120AL
dmi.product.version: C6X0466U
dmi.sys.vendor: Sony Corporation

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the release candidate kernel versus the daily build. Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag(Only that one tag, please leave the others). This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text.

If this bug is fixed by the mainline kernel, please add the following tag 'kernel-fixed-upstream-KERNEL-VERSION'. For example, if kernel version 3.1-rc9 fixed and issue, the tag would be: 'kernel-fixed-upstream-v3.1-rc9'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Thanks in advance.

[René Zurita Corro (zc-rene)]

I just tested against kernel 3.1.0-999-generic_3.1.0-999.201110200416_i386, bug remains, kernel panic occurred while on battery power, I attach the output from the installation of that kernel since it gave an error.

[Joseph Salisbury (jsalisbury)]

This issue appears to be an upstream bug, since you tested the latest upstream kernel. Would it be possible for you to open an upstream bug report at bugzilla.kernel.org? That will allow the upstream Developers to examine the issue, and may provide a quicker resolution to the bug.

If you are comfortable with opening a bug upstream, It would be great if you can report back the upstream bug number in this bug report. That will allow us to link this bug to the upstream report.

Also, can you attach a screen shot of the kernel panic when it happens?

[René Zurita Corro (zc-rene)]

Is there a tool to get the screen shot of the kernel panic, or is it sufficient with a cell phone photo?, It all happens so quickly even I panic, but I see some text about a trace in console mode that I have no idea how to copy other that on paper. Thanks in advance.

[Joseph Salisbury (jsalisbury)]

A cell phone photo would help. That may be the only way to capture the panic, unless you setup a net console[1]

[1] https://wiki.ubuntu.com/Kernel/Netconsole

[René Zurita Corro (zc-rene)]

Is there a place other than bugzilla.kernel.org where I can report the kernel bug?, I can't enter that site. Thanks.

[Joseph Salisbury (jsalisbury)]

Yes, it appears that bugzilla.kernel.org is still unavailable. One alternative would be to report this directly to the subsystem maintainer or to the LKML.

[David Segura M (davidseg)]

Same problem here, same distro Ubuntu 11.10 and same computer sony vaio vpcm120AL, also I tried Turning power management off on the wifi as described here https://bugs.launchpad.net/ubuntu/+source/linux/+bug/869502, and the issue still happen

[David Segura M (davidseg)]

I was able to take a screen shot of the kernel panic, hope it helps

[Britta Pedersen (briped)]

It affects my MSI wind u135 installed with Mint 11.10 too.

[René Zurita Corro (zc-rene)]

Since an update to kernel 3.0.0-14-generic I haven't had any problems. Perhaps it has been fixed it that version.

[penalvch (penalvch)]

René Zurita Corro, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.13-rc1

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]