Kernel Oops - BUG: unable to handle kernel NULL pointer dereference at 00000002; EIP is at acm_ctrl_msg.clone.13+0x36/0x70 [cdc_acm]
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-
Regression: Yes
Reproducible: Yes
ProcVersionSign
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/
/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,
Controls : 16
Simple ctrls : 9
Date: Mon Apr 11 18:45:26 2011
Failure: oops
HibernationDevice: RESUME=
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110302)
MachineType: Acer AO532h
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
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.
dmi.board.name: AO532h
dmi.board.vendor: Acer
dmi.board.version: V1.25
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.
dmi.modalias: dmi:bvnAcer:
dmi.product.name: AO532h
dmi.product.
dmi.sys.vendor: Acer
tags: |
added: regression-release removed: regression-update |
Changed in linux (Ubuntu): | |
status: | New → Confirmed |
tags: | added: cdc-acm |
tags: | added: kernel-driver-cdc-acm |
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/KernelMainl ineBuilds . 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.