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

Binary package hint: indicator-appmenu

Steps to reproduce:
1. open evolution
2. search contacts for someone in contact list
3. double click on a contact to open it
4. unity crashes

This happens every time.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: indicator-appmenu 0.1.91-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.37-12.26-generic 2.6.37
Uname: Linux 2.6.37-12-generic x86_64
Architecture: amd64
CrashCounter: 1
Date: Mon Jan 24 08:24:47 2011
EcryptfsInUse: Yes
ExecutablePath: /usr/lib/unity/unity-panel-service
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427.1)
ProcCmdline: /usr/lib/unity/unity-panel-service
ProcEnviron:
 SHELL=/bin/bash
 LC_MESSAGES=en_US.utf8
 PATH=(custom, user)
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
SegvAnalysis:
 Segfault happened at: 0x7f869473d0d1 <g_type_check_instance_cast+49>: mov (%rdi),%rsi
 PC (0x7f869473d0d1) ok
 source "(%rdi)" (0x656c6269736976) not located in a known VMA region (needed readable region)!
 destination "%rsi" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: indicator-appmenu
StacktraceTop:
 g_type_check_instance_cast () from /usr/lib/libgobject-2.0.so.0
 ?? () from /usr/lib/indicators/4/libappmenu.so
 g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
 ?? () from /usr/lib/libgobject-2.0.so.0
 g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
Title: unity-panel-service crashed with SIGSEGV in g_type_check_instance_cast()
UserGroups: adm admin cdrom dialout kvm libvirtd lpadmin plugdev sambashare sbuild
XsessionErrors:
 (nautilus:4738): GConf-CRITICAL **: gconf_value_free: assertion `value != NULL' failed
 (nm-applet:4742): Gtk-CRITICAL **: IA__gtk_widget_is_toplevel: assertion `GTK_IS_WIDGET (widget)' failed
 (nm-applet:4742): Gtk-CRITICAL **: IA__gtk_widget_is_toplevel: assertion `GTK_IS_WIDGET (widget)' failed