Kernel panic while using my system [brcm80211] [assertion "scb->magic == SCB_MAGIC"]

Bug #754825 reported by Joshua Lückers
34
This bug affects 6 people
Affects Status Importance Assigned to Milestone
bcmwl (Ubuntu)
Invalid
Undecided
Unassigned
linux (Ubuntu)
Invalid
Undecided
Unassigned

Bug Description

While using my system the kernel panics at random moments. A hard reboot is required, even the magic reisub solution does not work.
I have added a picture of the error I get when it panics (I hope it's clear enough).

The first line of the error says: Kernel panic - not syncing: <3>assertion "scb->magic == SCB_MAGIC" failed file "wlc_ampdu.c", line 909

uname -a
Linux vivi 2.6.38-8-generic #41-Ubuntu SMP Tue Apr 5 19:30:49 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux

cat /proc/version_signature
Ubuntu 2.6.38-8.41-generic 2.6.38.2

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-8-generic 2.6.38-8.41
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.38-8.41-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: joshua 1902 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xdb100000 irq 43'
   Mixer name : 'IDT 92HD75B3X5'
   Components : 'HDA:111d7603,103c3659,00100202'
   Controls : 20
   Simple ctrls : 12
Card1.Amixer.info:
 Card hw:1 'NVidia'/'HDA NVidia at 0xd3000000 irq 16'
   Mixer name : 'Nvidia GPU 0b HDMI/DP'
   Components : 'HDA:10de000b,10de0101,00100100'
   Controls : 16
   Simple ctrls : 4
Date: Fri Apr 8 19:01:36 2011
Frequency: Once a day.
HibernationDevice: RESUME=UUID=9a852483-c9fa-49d7-b4da-34290b09119a
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110408)
MachineType: Hewlett-Packard HP Pavilion dv6 Notebook PC
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=f16afe16-cccb-4ec3-be34-61f1c955eb38 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-8-generic N/A
 linux-backports-modules-2.6.38-8-generic N/A
 linux-firmware 1.50
SourcePackage: linux
StagingDrivers: brcm80211
Title: [STAGING]
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/05/2010
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.1D
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 3659
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 32.25
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnHewlett-Packard:bvrF.1D:bd10/05/2010:svnHewlett-Packard:pnHPPaviliondv6NotebookPC:pvr049E210000141210000020000:rvnHewlett-Packard:rn3659:rvr32.25:cvnHewlett-Packard:ct10:cvrN/A:
dmi.product.name: HP Pavilion dv6 Notebook PC
dmi.product.version: 049E210000141210000020000
dmi.sys.vendor: Hewlett-Packard

Revision history for this message
Joshua Lückers (joshualuckers) wrote :
Revision history for this message
Joshua Lückers (joshualuckers) wrote :
Revision history for this message
Joshua Lückers (joshualuckers) wrote :
summary: - Kenerl panic while using my system
+ Kernel panic while using my system
description: updated
Revision history for this message
Joshua Lückers (joshualuckers) wrote : Re: Kernel panic while using my system

A little search for that specific file on Google Code Search tells me it is part of the broadcom 80211 driver.

Revision history for this message
Dave Gilbert (ubuntu-treblig) wrote :

If you could also please test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. 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. Please let us know your results.

summary: - Kernel panic while using my system
+ Kernel panic while using my system [brcm80211] [assertion "scb->magic ==
+ SCB_MAGIC"]
Revision history for this message
Joshua Lückers (joshualuckers) wrote :

I have tested the latest upstream kernel, with that kernel wireless did not work at all.

tags: removed: needs-upstream-testing
Revision history for this message
Joshua Lückers (joshualuckers) wrote :
Revision history for this message
Andy Whitcroft (apw) wrote :

Requested testing with the proprietry driver. This does not seem to help, with the same panic ensuing. Requested testing with brcm80211 blacklisted. Oddly installing bcmwl does not blacklist the staging driver, though on all of my systems they silently co-exist.

Revision history for this message
Andy Whitcroft (apw) wrote :

It is unclear whether this driver should be black listed by default, but either way it seems that installing bcmwl should disable it as well. I note that this package does include a comprehensive blacklist for other drivers, b43 etc.

Revision history for this message
Roland Vossen (rvossen) wrote :

Hi,

a fix for this problem has been submitted a while ago into Greg KH's staging-next tree, please refer to the patch set in : http://www.spinics.net/lists/linux-driver-devel/msg11925.html

Regards,

Roland Vossen
Broadcom.

Brad Figg (brad-figg)
Changed in linux (Ubuntu):
status: New → Confirmed
Revision history for this message
Matthew Gadd (darkotter) wrote :

Is there a known workaround for this bug until the patch is released in updates?

I'm getting a kernel panic after between 2 and 5 minutes every time I try to use Ubuntu, stating the same assertion and line in wlc_ampdu.c, so being able to apply some sort of temporary fix would help greatly.

Changed in bcmwl (Ubuntu):
status: New → Confirmed
Revision history for this message
haro (hans-rossel) wrote :

There is more info now on http://www.broadcom.com/support/802.11/linux_sta.php see Problems with > 3.0 kernels? link

Revision history for this message
Christian Weiske (cweiske) wrote :

I have that problem on a Macbook Air 4,2 when trying to copy files onto a NFS drive.

Does someone know in which kernel release this patch is available?

Revision history for this message
penalvch (penalvch) wrote :

Joshua Lückers, thank you for reporting this bug and helping make Ubuntu better. 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? Can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

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

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

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. 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. Please let us know your results.

Thanks in advance.

Changed in linux (Ubuntu):
status: Confirmed → Incomplete
tags: added: needs-upstream-testing
removed: regression-release
Adam Porter (alphapapa)
Changed in bcmwl (Ubuntu):
status: Confirmed → Invalid
Changed in linux (Ubuntu):
status: Incomplete → Invalid
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