unity-panel-service crashed with SIGSEGV in g_data_set_internal()

[Lohith]

When I changed the compiz setting parameter, Unity crashed. I was just changing from Desktop wall to cube. In order to change, I had to disable wall first as there were some overlapping features between them. The system seems to be slow after that. I got the ubuntu panel back after resetting it but still the window's sizing is messed up. I now can't minimize or maximize when i double click the title bar for some programs (Rstudio).

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: unity-services 5.2.0-0ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-14.23-generic 3.2.3
Uname: Linux 3.2.0-14-generic x86_64
NonfreeKernelModules: nvidia
.proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module 290.10 Wed Nov 16 17:39:29 PST 2011
 GCC version: gcc version 4.6.2 (Ubuntu/Linaro 4.6.2-12ubuntu1)
.tmp.unity.support.test.0:

ApportVersion: 1.91-0ubuntu1
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,resize,fade,unitymtgrabhandles,scale,session,unityshell]
CompositorRunning: compiz
Date: Fri Feb 10 11:30:26 2012
DistUpgraded: Log time: 2012-02-07 20:48:42.695753
DistroCodename: precise
DistroVariant: ubuntu
DkmsStatus:
 nvidia-current, 290.10, 3.0.0-12-generic, x86_64: installedError! Could not locate dkms.conf file.
 File: does not exist.

 nvidia-current, 290.10, 3.2.0-14-generic, x86_64: installed
 nvidia-current, 290.10, 3.2.0-15-generic, x86_64: installed
ExecutablePath: /usr/lib/unity/unity-panel-service
GraphicsCard:
 NVIDIA Corporation G98 [Quadro NVS 295] [10de:06fd] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: NVIDIA Corporation Device [10de:062e]
JockeyStatus:
 xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Enabled, In use)
 xorg:nvidia_current_updates - NVIDIA accelerated graphics driver (post-release updates) (Proprietary, Disabled, Not in use)
MachineType: Dell Inc. Precision WorkStation T3500
ProcCmdline: /usr/lib/unity/unity-panel-service
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 LANG=en_US.UTF-8
ProcKernelCmdLine: root=/dev/sda5 ro quiet splash quiet splash
SegvAnalysis:
 Segfault happened at: 0x7fdb10a97c85 <g_datalist_id_set_data_full+341>: mov 0x0(%r13),%esi
 PC (0x7fdb10a97c85) ok
 source "0x0(%r13)" (0xaaaaaaaaaaaaaaa8) not located in a known VMA region (needed readable region)!
 destination "%esi" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 g_datalist_id_set_data_full () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_object_unref () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? ()
 g_object_unref () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: unity-panel-service crashed with SIGSEGV in g_datalist_id_set_data_full()
UpgradeStatus: Upgraded to precise on 2012-02-08 (2 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 04/20/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A11
dmi.board.name: 0K095G
dmi.board.vendor: Dell Inc.
dmi.board.version: A02
dmi.chassis.type: 7
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA11:bd04/20/2011:svnDellInc.:pnPrecisionWorkStationT3500:pvr:rvnDellInc.:rn0K095G:rvrA02:cvnDellInc.:ct7:cvr:
dmi.product.name: Precision WorkStation T3500
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu8
version.ia32-libs: ia32-libs 20090808ubuntu33
version.libdrm2: libdrm2 2.4.30-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0~rc2-0ubuntu5
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0~rc2-0ubuntu5
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.11.3-0ubuntu10
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.99.901-1ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu3
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

[Apport retracing service (apport)]

StacktraceTop:
 g_data_set_internal (dataset=0x0, new_destroy_func=0, new_data=0x0, key_id=53, datalist=0x881060) at /build/buildd/glib2.0-2.31.16/./glib/gdataset.c:438
 g_datalist_id_set_data_full (datalist=0x881060, key_id=53, data=0x0, destroy_func=0) at /build/buildd/glib2.0-2.31.16/./glib/gdataset.c:680
 ?? () at /build/buildd/glib2.0-2.31.16/./gobject/gobject.c:3623 from /tmp/tmp1Ha_tG/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? ()
 g_object_unref (_object=0x881050) at /build/buildd/glib2.0-2.31.16/./gobject/gobject.c:2963

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Robert Roth (evfool)]

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.

[kjeld Olsen (kjeldo)]

It just crashed at start, no error message at all, how would I know if the error was graphical?

Toshiba AC100-10D PDN01E-00801EN5 Nordic.

[Daniel van Vugt (vanvugt)]

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 928228, 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. Feel free to continue to report any other bugs you may find.