GTK applications crash while accessing the menu

Binary package hint: gnome-terminal

To reproduce, simply access the menu of any GTK application. Reproducable in both unity and classic.

The bug appears to be a race condition. It is harder to reproduce when using light-themes because they render the menu so slowly.

Almost certainly bug 703988 but I can't reopen that one so opening a new bug instead.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: gnome-terminal 2.32.1-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
Uname: Linux 2.6.38-7-generic x86_64
Architecture: amd64
CrashCounter: 1
Date: Sun Apr 17 14:58:43 2011
ExecutablePath: /usr/bin/gnome-terminal
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110322.1)
ProcCmdline: gnome-terminusername
ProcEnviron:
 LANGUAGE=en_GB:en
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f1c6a069b8d <g_type_check_instance_cast+61>: mov (%rsi),%r13
 PC (0x7f1c6a069b8d) ok
 source "(%rsi)" (0x0000001d) not located in a known VMA region (needed readable region)!
 destination "%r13" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gnome-terminal
StacktraceTop:
 g_type_check_instance_cast () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/libdbusmenu-glib.so.3
 ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
 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: gnome-terminal crashed with SIGSEGV in g_type_check_instance_cast()
UpgradeStatus: Upgraded to natty on 2011-03-28 (19 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
XsessionErrors:
 (nautilus:1203): Gtk-WARNING **: Change Desktop Background: missing action Change Desktop Background
 (nautilus:1203): Gtk-WARNING **: Ubuntu Documentation: missing action Ubuntu Documentation
 (nautilus:1203): Gtk-WARNING **: Change Desktop Background: missing action Change Desktop Background
 (nautilus:1203): Gtk-WARNING **: Ubuntu Documentation: missing action Ubuntu Documentation
 (nautilus:1203): GConf-CRITICAL **: gconf_value_free: assertion `value != NULL' failed