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

[Iain Hamilton]

Crashed while accessing the calendar via the clock indicator. Banshee had launched an indicator which appeared to trigger the crash. Calendar un-accessable after crash and required a restart of unity to relaunch app.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity-services 4.12.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-9.15-generic 3.0.3
Uname: Linux 3.0.0-9-generic i686
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 Kernel Module 280.13 Wed Jul 27 16:55:43 PDT 2011
 GCC version: gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-7ubuntu2)
Architecture: i386
BootLog:
 fsck from util-linux 2.19.1
 /dev/sda6: clean, 271294/7290880 files, 4800850/29160448 blocks
CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unityshell]
CompositorRunning: compiz
Date: Fri Sep 2 16:45:14 2011
DistUpgraded: Log time: 2011-09-01 22:28:50.986209
DistroCodename: oneiric
DistroVariant: ubuntu
DkmsStatus: nvidia-current, 280.13, 3.0.0-9-generic, i686: installed
ExecutablePath: /usr/lib/unity/unity-panel-service
GraphicsCard: nVidia Corporation G84 [GeForce 8600 GT] [10de:0402] (rev a1) (prog-if 00 [VGA controller])
JockeyStatus:
 xorg:nvidia_173 - NVIDIA accelerated graphics driver (Proprietary, Disabled, Not in use)
 xorg:nvidia_current-update - NVIDIA accelerated graphics driver (post-release updates) (Proprietary, Disabled, Not in use)
 xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Enabled, Not in use)
 xorg:nvidia_173-update - NVIDIA accelerated graphics driver (post-release updates) (Proprietary, Disabled, Not in use)
MachineType: Dell Inc Dimension E521
ProcCmdline: /usr/lib/unity/unity-panel-service
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-9-generic root=UUID=019ebe67-c2e2-4d76-b953-fe72475c7a93 ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x330e1f <g_slice_alloc+15>: call 0x2e4ae7
 PC (0x00330e1f) ok
 source "0x2e4ae7" (0x002e4ae7) ok
 destination "(%esp)" (0xbf6b2000) not located in a known VMA region (needed writable region)!
 Stack memory exhausted (SP below stack segment)
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 g_slice_alloc () from /lib/i386-linux-gnu/libglib-2.0.so.0
 g_list_prepend () from /lib/i386-linux-gnu/libglib-2.0.so.0
 gtk_window_list_toplevels () from /usr/lib/libgtk-3.so.0
 ?? () from /usr/lib/libgtk-3.so.0
 gtk_device_grab_remove () from /usr/lib/libgtk-3.so.0
Title: unity-panel-service crashed with SIGSEGV in g_slice_alloc()
UpgradeStatus: Upgraded to oneiric on 2011-09-01 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
XorgConf:
 Section "Device"
  Identifier "Default Device"
  Option "NoLogo" "True"
 EndSection
dmi.bios.date: 06/11/2007
dmi.bios.vendor: Dell Inc
dmi.bios.version: 1.1.10
dmi.board.name: 0UW457
dmi.board.vendor: Dell Inc
dmi.board.version: A03
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc
dmi.modalias: dmi:bvnDellInc:bvr1.1.10:bd06/11/2007:svnDellInc:pnDimensionE521:pvr:rvnDellInc:rn0UW457:rvrA03:cvnDellInc:ct3:cvr:
dmi.product.name: Dimension E521
dmi.sys.vendor: Dell Inc
version.compiz: compiz 1:0.9.5.92+bzr2791-0ubuntu1
version.libdrm2: libdrm2 2.4.26-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #806181, so 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.