gnome-panel crashed with SIGSEGV in locations_changed()

[Nick Jenkins]

This error happened when I accidentially deleted the main gnome panel at the top of the screen - the one with the date/time, menus for launching apps, etc - then straight after doing that, this error appeared.

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: gnome-panel 1:3.8.0-1ubuntu12.1
ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4
Uname: Linux 3.13.0-34-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.3
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Aug 18 11:40:10 2014
ExecutablePath: /usr/bin/gnome-panel
GsettingsChanges: b'org.gnome.gnome-panel.run-dialog' b'history' b"['gedit', 'synaptic']"
ProcCmdline: gnome-panel --sm-client-id 10dbece54f1098013e138569657035405500000049500000
ProcEnviron:
 LANGUAGE=en_AU:en
 PATH=(custom, user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_AU.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f019894f15d: mov (%rbx),%rbp
 PC (0x7f019894f15d) ok
 source "(%rbx)" (0x000000ed) not located in a known VMA region (needed readable region)!
 destination "%rbp" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gnome-panel
StacktraceTop:
 ?? () from /usr/lib/gnome-panel/4.0/libclock-applet.so
 g_cclosure_marshal_VOID__STRINGv (closure=0xe9e7e0, return_value=<optimised out>, instance=<optimised out>, args=<optimised out>, marshal_data=<optimised out>, n_params=<optimised out>, param_types=0x9b5fc0) at /build/buildd/glib2.0-2.40.0/./gobject/gmarshal.c:1004
 _g_closure_invoke_va (closure=0xe9e7e0, return_value=0x0, instance=0x917570, args=0x7fff08399fe8, n_params=1, param_types=0x9b5fc0) at /build/buildd/glib2.0-2.40.0/./gobject/gclosure.c:831
 g_signal_emit_valist (instance=0x917570, signal_id=<optimised out>, detail=2103, var_args=var_args@entry=0x7fff08399fe8) at /build/buildd/glib2.0-2.40.0/./gobject/gsignal.c:3215
 g_signal_emit (instance=instance@entry=0x917570, signal_id=<optimised out>, detail=<optimised out>) at /build/buildd/glib2.0-2.40.0/./gobject/gsignal.c:3363
Title: gnome-panel crashed with SIGSEGV in g_cclosure_marshal_VOID__STRINGv()
UpgradeStatus: Upgraded to trusty on 2014-07-31 (17 days ago)
UserGroups: adm admin audio cdrom davfs2 dialout dip disk floppy fuse lpadmin mail mythtv plugdev powerdev sambashare sudo vboxusers video

[Apport retracing service (apport)]

StacktraceTop:
 locations_changed (settings=<optimized out>, key=<optimized out>, cd=0xea6c00) at clock.c:1300
 g_cclosure_marshal_VOID__STRINGv (closure=0xe9e7e0, return_value=<optimized out>, instance=<optimized out>, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, param_types=0x9b5fc0) at /build/buildd/glib2.0-2.40.0/./gobject/gmarshal.c:1004
 _g_closure_invoke_va (closure=0xe9e7e0, return_value=0x0, instance=0x917570, args=0x7fff08399fe8, n_params=1, param_types=0x9b5fc0) at /build/buildd/glib2.0-2.40.0/./gobject/gclosure.c:831
 g_signal_emit_valist (instance=0x917570, signal_id=<optimized out>, detail=2103, var_args=var_args@entry=0x7fff08399fe8) at /build/buildd/glib2.0-2.40.0/./gobject/gsignal.c:3215
 g_signal_emit (instance=instance@entry=0x917570, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.40.0/./gobject/gsignal.c:3363

[Launchpad Janitor (janitor)]

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