Kernel Oops - BUG: unable to handle kernel NULL pointer dereference at 00000002; EIP is at acm_ctrl_msg.clone.13+0x36/0x70 [cdc_acm]

Bug #757658 reported by varun kumar
8
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Expired
Undecided
Unassigned

Bug Description

I kept my system for hibernate and closed the lid.After two hours,my system is very hot..The netbook still is in on condition only.It is not hibernated...I removed the battery and kept the system to become cool..After switiching on the netbook,apport asked me to report..It is a serious kernel Issue.

ProblemType: KernelOops
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-8-generic 2.6.38-8.41
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.38-8.41-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Annotation: Your system might become unstable now and might need to be restarted.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC272X Analog [ALC272X Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC272X Analog [ALC272X Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: varun 1492 F.... pulseaudio
 /dev/snd/seq: timidity 1282 F.... timidity
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0x58200000 irq 45'
   Mixer name : 'Realtek ALC272X'
   Components : 'HDA:10ec0272,10250349,00100001'
   Controls : 16
   Simple ctrls : 9
Date: Mon Apr 11 18:45:26 2011
Failure: oops
HibernationDevice: RESUME=UUID=c5a05655-8a44-4cc9-b3a5-20365437d2fe
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110302)
MachineType: Acer AO532h
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=3a306715-234d-40cd-8d2d-b40dab7790f5 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
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
Title: BUG: unable to handle kernel NULL pointer dereference at 00000002
UpgradeStatus: Upgraded to natty on 2011-03-26 (16 days ago)
dmi.bios.date: 06/15/2010
dmi.bios.vendor: Acer
dmi.bios.version: V1.25
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: AO532h
dmi.board.vendor: Acer
dmi.board.version: V1.25
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.25
dmi.modalias: dmi:bvnAcer:bvrV1.25:bd06/15/2010:svnAcer:pnAO532h:pvrV1.25:rvnAcer:rnAO532h:rvrV1.25:cvnAcer:ct10:cvrV1.25:
dmi.product.name: AO532h
dmi.product.version: V1.25
dmi.sys.vendor: Acer

Revision history for this message
varun kumar (varunkumar-eie) wrote :
tags: added: regression-release
removed: regression-update
Brad Figg (brad-figg)
Changed in linux (Ubuntu):
status: New → Confirmed
tags: added: cdc-acm
tags: added: kernel-driver-cdc-acm
Revision history for this message
penalvch (penalvch) wrote :

varun kumar, 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 in the development release 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.

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

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

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.

Please let us know your results. Thanks in advance.

summary: - BUG: unable to handle kernel NULL pointer dereference at 00000002
+ Kernel Oops - BUG: unable to handle kernel NULL pointer dereference at
+ 00000002; EIP is at acm_ctrl_msg.clone.13+0x36/0x70 [cdc_acm]
Changed in linux (Ubuntu):
status: Confirmed → Incomplete
Revision history for this message
Launchpad Janitor (janitor) wrote :

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

Changed in linux (Ubuntu):
status: Incomplete → Expired
To post a comment you must log in.
This report contains Public information  
Everyone can see this information.

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.