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

[Colan Schwartz]

This doesn't happen every time, but occurs often.

To reproduce:
1) Hit Alt-F10 to access the top-level menus with the keyboard.
2) Navigate left several times with the left arrow (wrap around the edge of the screen to come around the other side) .
3) I'm trying to get to the volume icon, but it won't go past the date.
4) A few moments later, the crash happens.

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: unity-services 7.2.2+14.04.20140714-0ubuntu1.1
ProcVersionSignature: Ubuntu 3.13.0-36.63-generic 3.13.11.6
Uname: Linux 3.13.0-36-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.4
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CrashCounter: 1
CurrentDesktop: Unity
Date: Thu Oct 2 09:18:49 2014
EcryptfsInUse: Yes
ExecutablePath: /usr/lib/unity/unity-panel-service
ProcCmdline: /usr/lib/unity/unity-panel-service
ProcEnviron:
 PATH=(custom, no user)
 LANGUAGE=en_CA:en
 XDG_RUNTIME_DIR=<set>
 LANG=en_CA.UTF-8
 SHELL=/bin/zsh
SegvAnalysis:
 Segfault happened at: 0x7fb36626c766: mov 0x10(%rdx),%ecx
 PC (0x7fb36626c766) ok
 source "0x10(%rdx)" (0x00000010) not located in a known VMA region (needed readable region)!
 destination "%ecx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/libido3-0.1.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/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
 g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: unity-panel-service crashed with SIGSEGV in g_closure_invoke()
UpgradeStatus: Upgraded to trusty on 2014-05-20 (135 days ago)
UserGroups: adm cdrom dip lp lpadmin plugdev sambashare staff sudo
upstart.unity-panel-service.log:
 (unity-panel-service:14175): Indicator-Appmenu-WARNING **: Already have a menu for window ID 85983411 with path /com/canonical/menu/52000B3 from :1.113, unregistering that one

 (unity-panel-service:14175): LIBDBUSMENU-GLIB-WARNING **: Getting layout failed: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface 'com.canonical.dbusmenu' on object at path /com/canonical/menu/4C00052

 (unity-panel-service:14175): LIBDBUSMENU-GLIB-WARNING **: Getting layout failed: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface 'com.canonical.dbusmenu' on object at path /com/canonical/menu/4C00054

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1350821, 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.

[Launchpad Janitor (janitor)]

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