.
Thread 1 (process 9713):
#0  0x00aae4d5 in g_hash_table_unref () from /lib/libglib-2.0.so.0
No symbol table info available.
#1  0x00974c64 in free_context_contents (context=0x8986b50) at bridge.c:262
No locals.
#2  0x00974e6c in app_menu_bridge_insert (proxy=0x891f7b0, parent=0x890da28, 
    child=0x8924b58, position=4294967295) at bridge.c:1277
	bridge = (AppMenuBridge *) 0x891f7b0
	toplevel = <value optimized out>
#3  0x00e85c43 in ubuntu_menu_proxy_insert (proxy=0x891f7b0, 
    parent=0x89a9038, child=0x8924b58, position=4294967295)
    at /build/buildd/gtk+2.0-2.21.7/gtk/ubuntumenuproxy.c:227
	__PRETTY_FUNCTION__ = "ubuntu_menu_proxy_insert"
#4  0x00e8763f in IA__gtk_menu_shell_insert (menu_shell=0x89a9038, 
    child=0x8924b58, position=-1)
    at /build/buildd/gtk+2.0-2.21.7/gtk/gtkmenushell.c:566
	priv = (GtkMenuShellPrivate *) 0x89a90e8
	__PRETTY_FUNCTION__ = "IA__gtk_menu_shell_insert"
#5  0x00e876b0 in IA__gtk_menu_shell_append (menu_shell=0x89a9038, 
    child=0x8924b58) at /build/buildd/gtk+2.0-2.21.7/gtk/gtkmenushell.c:536
No locals.
#6  0x00ba27b7 in update_menu_state (menu=0x88f4a88)
    at window-action-menu.c:921
	viewport_width = 1440
	viewport_height = 144354208
	screen_width = <value optimized out>
	screen_height = 143710760
	priv = <value optimized out>
	actions = 1440
	screen = (WnckScreen *) 0x0
	workspace = <value optimized out>
	viewport_mode = 144347192
	move_workspace_sensitive = <value optimized out>
#7  0x00abb9a1 in g_source_ref () from /lib/libglib-2.0.so.0
No symbol table info available.
#8  0x00abd9b5 in g_source_set_name () from /lib/libglib-2.0.so.0
No symbol table info available.
#9  0x00ac17c8 in g_mapped_file_ref () from /lib/libglib-2.0.so.0
No symbol table info available.
#10 0x00ac1d07 in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#11 0x00e6d749 in IA__gtk_main ()
    at /build/buildd/gtk+2.0-2.21.7/gtk/gtkmain.c:1237
	tmp_list = (GList *) 0x89aafc8
	functions = (GList *) 0x0
	init = (GtkInitFunction *) 0xbfad8d20
	loop = (GMainLoop *) 0x897e888
#12 0x08055cbb in ?? ()
No symbol table info available.
#13 0x028d7ce7 in __libc_start_main () from /lib/libc.so.6
No symbol table info available.
#14 0x0804caf1 in ?? ()
No symbol table info available.