.
Thread 1 (process 17949):
#0  0x000000000040c258 in device_tree_changed (
    selection=<value optimized out>, user_data=<value optimized out>)
    at gdu-shell.c:478
	shell = (GduShell *) 0xa28a50
	presentable = <value optimized out>
#1  0x00007f003bbaeafe in g_closure_invoke (closure=0xa31dc0, 
    return_value=0x0, n_param_values=1, param_values=0xaf86c0, 
    invocation_hint=0x7ffff1ef8140)
    at /build/buildd/glib2.0-2.25.15/gobject/gclosure.c:766
	marshal = (GClosureMarshal) 0xaab870
	marshal_data = (gpointer) 0x1
	__PRETTY_FUNCTION__ = "g_closure_invoke"
#2  0x00007f003bbc7379 in signal_emit_unlocked_R (node=0xaa6a70, 
    detail=<value optimized out>, instance=<value optimized out>, 
    emission_return=<value optimized out>, 
    instance_and_params=<value optimized out>)
    at /build/buildd/glib2.0-2.25.15/gobject/gsignal.c:3252
	tmp = <value optimized out>
	handler = (Handler *) 0xae1430
	accumulator = (SignalAccumulator *) 0x0
	emission = {next = 0x7ffff1ef86f0, instance = 0xac5140, ihint = {
    signal_id = 220, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, 
  state = EMISSION_RUN, chain_type = 4}
	class_closure = (GClosure *) 0xaefcc0
	handler_list = (Handler *) 0xae1430
	return_accu = <value optimized out>
	accu = {g_type = 0, data = {{v_int = 0, v_uint = 0, v_long = 0, 
      v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, 
      v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, 
      v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
	signal_id = 220
	max_sequential_handler_number = <value optimized out>
	return_value_altered = 1
#3  0x00007f003bbc8af6 in g_signal_emit_valist (instance=0xac5140, 
    signal_id=<value optimized out>, detail=0, var_args=0x7ffff1ef8330)
    at /build/buildd/glib2.0-2.25.15/gobject/gsignal.c:2983
	signal_return_type = 4
	param_values = <value optimized out>
	node = (SignalNode *) 0xaa6a70
	i = <value optimized out>
	n_params = <value optimized out>
	__PRETTY_FUNCTION__ = "g_signal_emit_valist"
#4  0x00007f003bbc9353 in g_signal_emit (instance=0x7f003f617478, 
    signal_id=11188336, detail=166)
    at /build/buildd/glib2.0-2.25.15/gobject/gsignal.c:3040
	var_args = {{gp_offset = 24, fp_offset = 48, 
    overflow_arg_area = 0x7ffff1ef8410, reg_save_area = 0x7ffff1ef8350}}
#5  0x00007f003e31896a in ?? () from /usr/lib/libgtk-x11-2.0.so.0
No symbol table info available.
#6  0x00007f003e3238aa in ?? () from /usr/lib/libgtk-x11-2.0.so.0
No symbol table info available.
#7  0x00007f003e2046e3 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
No symbol table info available.
#8  0x00007f003bbaeafe in g_closure_invoke (closure=0x9f24b0, 
    return_value=0x7ffff1ef8740, n_param_values=2, param_values=0xce9190, 
    invocation_hint=0x7ffff1ef8700)
    at /build/buildd/glib2.0-2.25.15/gobject/gclosure.c:766
	marshal = (GClosureMarshal) 0xaab870
	marshal_data = (gpointer) 0x1
	__PRETTY_FUNCTION__ = "g_closure_invoke"
#9  0x00007f003bbc6fc2 in signal_emit_unlocked_R (node=0x9f2850, 
    detail=<value optimized out>, instance=<value optimized out>, 
    emission_return=<value optimized out>, 
    instance_and_params=<value optimized out>)
    at /build/buildd/glib2.0-2.25.15/gobject/gsignal.c:3290
	accumulator = (SignalAccumulator *) 0x1
	emission = {next = 0x0, instance = 0xb7a100, ihint = {signal_id = 33, 
    detail = 0, run_type = G_SIGNAL_RUN_LAST}, state = EMISSION_RUN, 
  chain_type = 11188336}
	class_closure = (GClosure *) 0x9f24b0
	handler_list = (Handler *) 0x0
	return_accu = <value optimized out>
	accu = {g_type = 20, data = {{v_int = 0, v_uint = 0, v_long = 0, 
      v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, 
      v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, 
      v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
	signal_id = 33
	max_sequential_handler_number = <value optimized out>
	return_value_altered = 0
#10 0x00007f003bbc893c in g_signal_emit_valist (instance=0xb7a100, 
    signal_id=<value optimized out>, detail=0, var_args=0x7ffff1ef88f0)
    at /build/buildd/glib2.0-2.25.15/gobject/gsignal.c:2993
	return_value = {g_type = 20, data = {{v_int = 0, v_uint = 0, 
      v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, 
      v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, 
      v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, 
      v_pointer = 0x0}}}
	error = <value optimized out>
	signal_return_type = 20
	param_values = <value optimized out>
	node = (SignalNode *) 0x9f2850
	i = <value optimized out>
	n_params = <value optimized out>
	__PRETTY_FUNCTION__ = "g_signal_emit_valist"
#11 0x00007f003bbc9353 in g_signal_emit (instance=0x7f003f617478, 
    signal_id=11188336, detail=166)
    at /build/buildd/glib2.0-2.25.15/gobject/gsignal.c:3040
	var_args = {{gp_offset = 32, fp_offset = 48, 
    overflow_arg_area = 0x7ffff1ef89d0, reg_save_area = 0x7ffff1ef8910}}
#12 0x00007f003e337c0f in ?? () from /usr/lib/libgtk-x11-2.0.so.0
No symbol table info available.
#13 0x00007f003e1fb3b3 in gtk_propagate_event ()
   from /usr/lib/libgtk-x11-2.0.so.0
No symbol table info available.
#14 0x00007f003e1fc58b in gtk_main_do_event ()
   from /usr/lib/libgtk-x11-2.0.so.0
No symbol table info available.
#15 0x00007f003d836e9c in ?? () from /usr/lib/libgdk-x11-2.0.so.0
No symbol table info available.
#16 0x00007f003b2ee7e2 in g_main_context_dispatch (context=0x9ec4c0)
    at /build/buildd/glib2.0-2.25.15/glib/gmain.c:2119
No locals.
#17 0x00007f003b2f2748 in g_main_context_iterate (context=0x9ec4c0, 
    block=<value optimized out>, dispatch=<value optimized out>, 
    self=<value optimized out>)
    at /build/buildd/glib2.0-2.25.15/glib/gmain.c:2750
	max_priority = 2147483647
	timeout = 500
	some_ready = 1
	nfds = 6
	allocated_nfds = 992999040
	fds = <value optimized out>
	__PRETTY_FUNCTION__ = "g_main_context_iterate"
#18 0x00007f003b2f2c55 in g_main_loop_run (loop=0xbc1cd0)
    at /build/buildd/glib2.0-2.25.15/glib/gmain.c:2958
	self = (GThread *) 0x9b1390
	__PRETTY_FUNCTION__ = "g_main_loop_run"
#19 0x00007f003e1fca47 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
No symbol table info available.
#20 0x000000000040a1c5 in main (argc=1, argv=0x7ffff1ef8db8) at gdu-main.c:202
	ret = <value optimized out>
	shell = (GduShell *) 0xa28a50
	unique_app = (UniqueApp *) 0xa49590
	msg_data = <value optimized out>
	response = <value optimized out>
	error = (GError *) 0x0