(gdb) where
#0  0x100702cc in compose_reedit ()
#1  0x1013560c in summary_reedit ()
#2  0x10136e08 in summary_open_msg ()
#3  0x0e8ee77c in g_cclosure_marshal_VOID__VOID () from /usr/lib/libgobject-2.0.so.0
#4  0x0e8ddb8c in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#5  0x0e8f2e04 in g_signal_override_class_closure () from /usr/lib/libgobject-2.0.so.0
#6  0x0e8f410c in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#7  0x0e8f42d8 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#8  0x101805d4 in gtk_sctree_insert_node ()
#9  0x0142d7b4 in gtk_marshal_BOOLEAN__VOID () from /usr/lib/libgtk-x11-2.0.so.0
#10 0x0e8dbdcc in g_value_set_static_boxed () from /usr/lib/libgobject-2.0.so.0
#11 0x0e8ddb8c in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#12 0x0e8f2f50 in g_signal_override_class_closure () from /usr/lib/libgobject-2.0.so.0
#13 0x0e8f3e9c in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#14 0x0e8f42d8 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#15 0x01549270 in gtk_widget_get_default_style () from /usr/lib/libgtk-x11-2.0.so.0
#16 0x014256c0 in gtk_propagate_event () from /usr/lib/libgtk-x11-2.0.so.0
#17 0x01427130 in gtk_main_do_event () from /usr/lib/libgtk-x11-2.0.so.0
#18 0x0ec70448 in gdk_add_client_message_filter () from /usr/lib/libgdk-x11-2.0.so.0
#19 0x0f8400c4 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#20 0x0f844118 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#21 0x0f844584 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#22 0x01427654 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0