BUG: unable to handle kernel NULL pointer dereference at 0000009c
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Medium
|
Unassigned |
Bug Description
I had finished doing some work in a chroot, had exited it, and issued the command "umount -a", rather than individually umount each of the mounted elements. That killed X completely and gave a screenful of error messages. I was able to reboot using the alt-sysrq REISUB sequence.
If this is an illegal command in the circumstances, I would have expected to get a warning of some kind, or have the command blocked altogether.
The machine is an EeePC 900, and the system is a fully-updated version of 12.04 (non-pae kernel) running gnome-fallback.
ProblemType: KernelOops
DistroRelease: Ubuntu 12.04
Package: linux-image-
ProcVersionSign
Uname: Linux 3.2.0-18-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
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: ALC662 rev1 Analog [ALC662 rev1 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 1.94-0ubuntu1
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC662 rev1 Analog [ALC662 rev1 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf7eb8000 irq 44'
Mixer name : 'Realtek ALC662 rev1'
Components : 'HDA:10ec0662,
Controls : 20
Simple ctrls : 11
CurrentDmesg:
Date: Wed Mar 7 07:57:54 2012
Failure: oops
HibernationDevice: RESUME=
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111011)
IwConfig:
lo no wireless extensions.
eth0 no wireless extensions.
MachineType: ASUSTeK Computer INC. 900
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=
PulseSinks: Error: command ['pacmd', 'list-sinks'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
PulseSources: Error: command ['pacmd', 'list-sources'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageV
RfKill:
0: eeepc-wlan: Wireless LAN
Soft blocked: yes
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: 03/03/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1006
dmi.board.
dmi.board.name: 900
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: x.xx
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTek Computer INC.
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: 900
dmi.product.
dmi.sys.vendor: ASUSTeK Computer INC.
Changed in linux (Ubuntu): | |
status: | New → Confirmed |
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
There is a test kernel available for this bug at: people. canonical. com/~apw/ lp922906- precise/
http://
Can you test this kernel and report back in bug 922906 where or not the test kernel resolved this bug?