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

[Marius Vordal]

I had just launched Banshee from the sound menu, and was fiddling with the function keys on my Samsung netbook to adjust the volume, when the panel started misbehaving. Clicking on any icon on the panel other than the sound menu icon failed to launch the corresponding menu. The icon would all be given the "tab" frame, to indicate the menu being open, but only the sound menu would actually show. Though seemingly stuck and unresponsive, the icons, such as the wireless icon, would still update to indicate changes in status.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity-services 4.12.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-9.14-generic 3.0.3
Uname: Linux 3.0.0-9-generic x86_64
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: Tue Sep 6 23:21:50 2011
DistUpgraded: Fresh install
DistroCodename: oneiric
DistroVariant: ubuntu
ExecutablePath: /usr/lib/unity/unity-panel-service
GraphicsCard:
 Intel Corporation N10 Family Integrated Graphics Controller [8086:a011] (prog-if 00 [VGA controller])
   Subsystem: Samsung Electronics Co Ltd Device [144d:c08f]
   Subsystem: Samsung Electronics Co Ltd Device [144d:c08f]
MachineType: SAMSUNG ELECTRONICS CO., LTD. N250P
ProcCmdline: /usr/lib/unity/unity-panel-service
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-9-generic root=UUID=248C2D428C2D103A loop=/hostname/disks/root.disk ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x7f38e1f4ee8c <gtk_window_group_get_current_device_grab+12>: callq 0x7f38e1f4e460 <gtk_window_group_get_type>
 PC (0x7f38e1f4ee8c) ok
 source "0x7f38e1f4e460" (0x7f38e1f4e460) ok
 destination "(%rsp)" (0x7fff6a382000) 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:
 gtk_window_group_get_current_device_grab () from /usr/lib/libgtk-3.so.0
 gtk_widget_device_is_shadowed () from /usr/lib/libgtk-3.so.0
 ?? () from /usr/lib/libgtk-3.so.0
 g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: unity-panel-service crashed with SIGSEGV in gtk_window_group_get_current_device_grab()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 12/09/2010
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 01HG.M011.20101209.RHU
dmi.board.asset.tag: SAMSUNG
dmi.board.name: N250P
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr01HG.M011.20101209.RHU:bd12/09/2010:svnSAMSUNGELECTRONICSCO.,LTD.:pnN250P:pvrNotApplicable:rvnSAMSUNGELECTRONICSCO.,LTD.:rnN250P:rvrNotApplicable:cvnSAMSUNGELECTRONICSCO.,LTD.:ct10:cvrN/A:
dmi.product.name: N250P
dmi.product.version: Not Applicable
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
version.compiz: compiz 1:0.9.5.92+bzr2791-0ubuntu2
version.ia32-libs: ia32-libs N/A
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.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 #837738, 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.