Ubuntu
linux package

Kernel Oops - BUG: unable to handle kernel NULL pointer dereference at 0000002c; EIP is at cifs_show_options+0xf5/0x440 [cifs]

Bug #623578 reported by Duncan McGreggor
14
This bug affects 2 people
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Invalid
Undecided
Unassigned

Bug Description

I have *no idea* how this is happening. It's happened twice in the past two hours.

ProblemType: KernelOops
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-17-generic 2.6.35-17.23
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.35-17.23-generic 2.6.35.2
Uname: Linux 2.6.35-17-generic i686
NonfreeKernelModules: vmblock vmci vmhgfs
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: AudioPCI [Ensoniq AudioPCI], device 0: ES1371/1 [ES1371 DAC2/ADC]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: oubiwann 1681 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'AudioPCI'/'Ensoniq AudioPCI ENS1371 at 0x2080, irq 16'
   Mixer name : 'Cirrus Logic CS4297A rev 3'
   Components : 'AC97a:43525913'
   Controls : 24
   Simple ctrls : 13
Date: Tue Aug 24 12:52:04 2010
Failure: oops
Frequency: Once a day.
HibernationDevice: RESUME=UUID=8b70e0f4-850b-4d21-a0d0-557497b97f7a
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20100113)
IwConfig:
 lo no wireless extensions.

 eth1 no wireless extensions.
Lsusb:
 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: VMware, Inc. VMware Virtual Platform
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-17-generic root=UUID=74472571-e622-4802-8a6b-53909bc597ce ro quiet splash
RelatedPackageVersions: linux-firmware 1.38
RfKill:

SourcePackage: linux
Title: BUG: unable to handle kernel NULL pointer dereference at 0000002c
dmi.bios.date: 12/31/2009
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: 6.00
dmi.board.name: 440BX Desktop Reference Platform
dmi.board.vendor: Intel Corporation
dmi.board.version: None
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 1
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd12/31/2009:svnVMware,Inc.:pnVMwareVirtualPlatform:pvrNone:rvnIntelCorporation:rn440BXDesktopReferencePlatform:rvrNone:cvnNoEnclosure:ct1:cvrN/A:
dmi.product.name: VMware Virtual Platform
dmi.product.version: None
dmi.sys.vendor: VMware, Inc.

Revision history for this message
Duncan McGreggor (oubiwann) wrote :
Revision history for this message
Philip Muškovac (yofel) wrote :

Kernel bug.

affects: ubuntu → linux (Ubuntu)
Brad Figg (brad-figg)
Changed in linux (Ubuntu):
status: New → Confirmed
Brian Murray (brian-murray)
tags: added: cifs
Brian Murray (brian-murray)
tags: added: kernel-driver-cifs
Revision history for this message
penalvch (penalvch) wrote :

Duncan McGreggor, 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.

summary: - BUG: unable to handle kernel NULL pointer dereference at 0000002c
+ Kernel Oops - BUG: unable to handle kernel NULL pointer dereference at
+ 0000002c; EIP is at cifs_show_options+0xf5/0x440 [cifs]
Changed in linux (Ubuntu):
status: Confirmed → Incomplete
Revision history for this message
Duncan McGreggor (oubiwann) wrote :

I've been using Precise since its alpha, and haven't seen this.

I wouldn't even know how to duplicate what I was seeing a couple years ago, 'cause I didn't know how to duplicate it in the first place :-(

Feel free to close the bug!

Revision history for this message
penalvch (penalvch) wrote :

Duncan McGreggor, this bug report is being closed due to your last comment regarding this being fixed with an update. For future reference you can manage the status of your own bugs by clicking on the current status in the yellow line and then choosing a new status in the revealed drop down box. You can learn more about bug statuses at https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time to report this bug and helping to make Ubuntu better. Please submit any future bugs you may find.

Changed in linux (Ubuntu):
status: Incomplete → Invalid
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