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

[Karma Dorje]

$ lsb_release -rd
Description: Ubuntu Saucy Salamander (development branch)
Release: 13.10

$ apt-cache policy unity
unity:
  Installed: 7.0.0daily13.04.18~13.04-0ubuntu1
  Candidate: 7.0.0daily13.04.18~13.04-0ubuntu1
  Version table:
 *** 7.0.0daily13.04.18~13.04-0ubuntu1 0
        500 http://archive.ubuntu.com/ubuntu/ saucy/main amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: unity-services 7.0.0daily13.04.18~13.04-0ubuntu1
ProcVersionSignature: Ubuntu 3.9.0-2.6-generic 3.9.2
Uname: Linux 3.9.0-2-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.10.1-0ubuntu1
Architecture: amd64
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CrashCounter: 1
Date: Fri May 17 01:31:56 2013
DistUpgraded: 2013-05-07 00:31:17,451 DEBUG enabling apt cron job
DistroCodename: saucy
DistroVariant: ubuntu
DkmsStatus:
 bbswitch, 0.6, 3.9.0-1-generic, x86_64: installed
 bbswitch, 0.6, 3.9.0-2-generic, x86_64: installed
 nvidia-304, 304.88, 3.9.0-1-generic, x86_64: installed
 nvidia-304, 304.88, 3.9.0-2-generic, x86_64: installed
ExecutablePath: /usr/lib/unity/unity-panel-service
GraphicsCard:
 Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: ASUSTeK Computer Inc. Device [1043:1652]
 NVIDIA Corporation GF119M [GeForce 610M] [10de:1058] (rev ff) (prog-if ff)
InstallationDate: Installed on 2012-09-30 (228 days ago)
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120817.1)
MachineType: ASUSTeK Computer Inc. K53SD
MarkForUpload: True
ProcCmdline: /usr/lib/unity/unity-panel-service
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.9.0-2-generic root=UUID=3a12bdbf-2c31-4f31-b854-e8f79e6888ad ro crashkernel=384M-2G:64M,2G-:128M i915.semaphores=0 rootfstype=ext4 verbose resume=UUID=c0e46d37-b5cd-43aa-94a7-4fa61e48c9a0
SegvAnalysis:
 Segfault happened at: 0x7fac7f7b62dc <g_type_check_instance_cast+28>: mov (%rax),%rdi
 PC (0x7fac7f7b62dc) ok
 source "(%rax)" (0xaaaaaaaaaaaaaaaa) not located in a known VMA region (needed readable region)!
 destination "%rdi" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 g_type_check_instance_cast () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libdbusmenu-gtk3.so.4
 ?? () from /usr/lib/x86_64-linux-gnu/libdbusmenu-gtk3.so.4
 g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
Title: unity-panel-service crashed with SIGSEGV in g_type_check_instance_cast()
UpgradeStatus: Upgraded to saucy on 2013-05-06 (10 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
XorgConf:
 Section "Device"
   Identifier "intel"
   Driver "intel"
   Option "AccelMethod" "sna" # or uxa, as appropriate
 EndSection
dmi.bios.date: 03/06/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: K53SD.205
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: K53SD
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrK53SD.205:bd03/06/2012:svnASUSTeKComputerInc.:pnK53SD:pvr1.0:rvnASUSTeKComputerInc.:rnK53SD:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
dmi.product.name: K53SD
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.
version.compiz: compiz 1:0.9.9~daily13.04.18.1~13.04-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.44-0ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.1.1-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.1.1-0ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu9
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.6-0ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.7-0ubuntu1
xserver.bootTime: Thu May 16 09:31:04 2013
xserver.configfile: /etc/X11/xorg.conf
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.13.3-0ubuntu9
xserver.video_driver: intel

[Apport retracing service (apport)]

StacktraceTop:
 ?? ()
 ?? ()
 ?? ()
 ?? ()
 menu_item_is_activating (mi=mi@entry=0x25b0210) at ../../../libdbusmenu-gtk/client.c:491

[Apport retracing service (apport)]

StacktraceTop:
 g_type_check_instance_cast (type_instance=type_instance@entry=0x25b0210, iface_type=iface_type@entry=80) at /build/buildd/glib2.0-2.37.0/./gobject/gtype.c:4008
 menu_item_is_activating (mi=mi@entry=0x25b0210) at ../../../libdbusmenu-gtk/client.c:491
 close_in_idle (mi=0x25b0210) at ../../../libdbusmenu-gtk/client.c:580
 g_main_dispatch (context=0x21255b0) at /build/buildd/glib2.0-2.37.0/./glib/gmain.c:3058
 g_main_context_dispatch (context=context@entry=0x21255b0) at /build/buildd/glib2.0-2.37.0/./glib/gmain.c:3634

[Apport retracing service (apport)]

Package: unity-services 7.1.0+13.10.20130805-0ubuntu1
ProcCmdline: /usr/lib/unity/unity-panel-service

[Launchpad Janitor (janitor)]

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

[Will Cooke (willcooke)]

As part of the big bug clear up for 16.04 LTS I am marking this bug as Wont Fix.
These types of crasher are better handled by errors.ubutnu.com which can collate similar crash reports to help us identify persitent bugs rather than one-off crashes.
Sorry we are not able to help with this specific issue. If you are still experiencing this crash, please re-open the bug and add the tag "desktop-bugscrub-reopened". See https://wiki.ubuntu.com/BigDesktopBugScrub for more information.