Kernel Oops - BUG: unable to handle kernel NULL pointer dereference at 0000009c; EIP is at __ticket_spin_lock+0x8/0x20
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Medium
|
Unassigned |
Bug Description
I right clicked on the Unity panel and selected eject for my thumb drive and I encountered the kernel error.
ProblemType: KernelOops
DistroRelease: Ubuntu 11.04
Package: linux-image-
Regression: Yes
Reproducible: Yes
ProcVersionSign
Uname: Linux 2.6.38-7-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: SB [HDA ATI SB], device 0: ALC272X Analog [ALC272X Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: SB [HDA ATI SB], device 0: ALC272X Analog [ALC272X Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'SB'/'HDA ATI SB at 0xd2300000 irq 16'
Mixer name : 'Realtek ALC272X'
Components : 'HDA:10ec0272,
Controls : 16
Simple ctrls : 9
Date: Sat Apr 2 18:58:34 2011
Failure: oops
HibernationDevice: RESUME=
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta i386 (20110330)
Lsusb:
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
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: Acer Aspire 5532
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.49
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
Title: BUG: unable to handle kernel NULL pointer dereference at 0000009c
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/24/2009
dmi.bios.vendor: Acer
dmi.bios.version: V1.05
dmi.board.name: Aspire 5532
dmi.board.vendor: Acer
dmi.board.version: V1.05
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.
dmi.modalias: dmi:bvnAcer:
dmi.product.name: Aspire 5532
dmi.product.
dmi.sys.vendor: Acer
Changed in linux (Ubuntu): | |
status: | New → Confirmed |
Changed in linux (Ubuntu): | |
status: | Incomplete → Confirmed |
importance: | Undecided → Medium |
motang, 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. Please let us know your results.
Thanks in advance.