BUG: unable to handle kernel NULL pointer dereference at 00000040

[Abelardo Jara-Berrocal]

I tried to run pcsx and mugen and in both cases this problem appeared.

ProblemType: KernelOops
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: ALC268 Analog [ALC268 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: abelardo 27845 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0x98400000 irq 22'
   Mixer name : 'Realtek ALC268'
   Components : 'HDA:10ec0268,1025011e,00100003 HDA:14f12c06,1025011e,00100000'
   Controls : 11
   Simple ctrls : 8
Date: Wed Oct 14 00:47:38 2009
DistroRelease: Ubuntu 9.10
Failure: oops
HibernationDevice: RESUME=UUID=7b288299-2461-4c40-bf37-f7b2f0a2421d
MachineType: Acer Aspire 7720
Package: linux-image-2.6.31-13-generic 2.6.31-13.45
ProcCmdLine: root=UUID=87709a83-79f7-48f2-81fc-560d58f4fbb5 ro quiet splash
ProcVersionSignature: Ubuntu 2.6.31-13.45-generic
RelatedPackageVersions:
 linux-backports-modules-2.6.31-13-generic N/A
 linux-firmware 1.22
SourcePackage: linux
Tags: kernel-oops
Title: BUG: unable to handle kernel NULL pointer dereference at 00000040
Uname: Linux 2.6.31-13-generic i686
WpaSupplicantLog:

dmi.bios.date: 05/20/2008
dmi.bios.vendor: Acer
dmi.bios.version: V1.40
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Poyang
dmi.board.vendor: Acer
dmi.board.version: V1.40
dmi.chassis.type: 1
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.40
dmi.modalias: dmi:bvnAcer:bvrV1.40:bd05/20/2008:svnAcer:pnAspire7720:pvrV1.40:rvnAcer:rnPoyang:rvrV1.40:cvnAcer:ct1:cvrV1.40:
dmi.product.name: Aspire 7720
dmi.product.version: V1.40
dmi.sys.vendor: Acer

[Marc Deslauriers (mdeslaur)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.

[Brian Murray (brian-murray)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 437258, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.