=>[1] g_type_check_instance_cast(type_instance = ???, iface_type = ???) (optimized), at 0xfe27d3d0 (line ~2603) in "gtype.c"
  [2] wnck_task_update_visible_state(task = ???) (optimized), at 0xff35df80 (line ~1393) in "tasklist.c"
  [3] wnck_task_name_changed(window = ???, data = ???) (optimized), at 0xff35e144 (line ~1457) in "tasklist.c"
  [4] g_cclosure_marshal_VOID__VOID(closure = ???, return_value = ???, n_param_values = ???, param_values = ???, invocation_hint = ???, marshal_data = ???) (optimized), at 0xfe2757ac (line ~78) in "gmarshal.c"
  [5] g_closure_invoke(closure = ???, return_value = ???, n_param_values = ???, param_values = ???, invocation_hint = ???) (optimized), at 0xfe2602c4 (line ~441) in "gclosure.c"
  [6] signal_emit_unlocked_R(node = ???, detail = ???, instance = ???, emission_return = ???, instance_and_params = ???) (optimized), at 0xfe275118 (line ~2344) in "gsignal.c"
  [7] g_signal_emit_valist(instance = ???, signal_id = ???, detail = ???, var_args = ???) (optimized), at 0xfe2744b8 (line ~2099) in "gsignal.c"
  [8] g_signal_emit(instance = ???, signal_id = ???, detail = ???, ...) (optimized), at 0xfe2747fc (line ~2143) in "gsignal.c"
  [9] emit_name_changed(window = ???) (optimized), at 0xff3624f8 (line ~1617) in "window.c"
  [10] force_update_now(window = ???) (optimized), at 0xff3621b4 (line ~1542) in "window.c"
  [11] update_idle(data = ???) (optimized), at 0xff362418 (line ~1589) in "window.c"
  [12] g_idle_dispatch(source = ???, callback = ???, user_data = ???) (optimized), at 0xfe1b23a8 (line ~3128) in "gmain.c"
  [13] g_main_dispatch(context = ???) (optimized), at 0xfe1aef40 (line ~1618) in "gmain.c"
  [14] g_main_context_dispatch(context = ???) (optimized), at 0xfe1b01fc (line ~2160) in "gmain.c"
  [15] g_main_context_iterate(context = ???, block = ???, dispatch = ???, self = ???) (optimized), at 0xfe1b0614 (line ~2241) in "gmain.c"
  [16] g_main_loop_run(loop = ???) (optimized), at 0xfe1b0fac (line ~2461) in "gmain.c"
  [17] gtk_main() (optimized), at 0xfe690efc (line ~915) in "gtkmain.c"
  [18] main(0xa2ef0, 0xa2f04, 0xa2f10, 0xa2f28, 0x0, 0x0), at 0x22c4c

