Program received signal SIGSEGV, Segmentation fault.
0x003302b9 in _clutter_stage_has_full_redraw_queued (stage=0x8f63d98) at ./clutter-stage.c:747

(gdb) bt
#0  0x003302b9 in _clutter_stage_has_full_redraw_queued (stage=0x8f63d98) at ./clutter-stage.c:747
#1  0x002ea354 in clutter_actor_real_queue_redraw (self=0x92de1c0, origin=0x92de1c0) at ./clutter-actor.c:1698
#2  0x0054f6ac in IA__g_cclosure_marshal_VOID__OBJECT (closure=0x8d7e0a8, return_value=0x0, n_param_values=2, 
    param_values=0x9731940, invocation_hint=0xbf9aa9c0, marshal_data=0x2ea300)
    at /build/buildd/glib2.0-2.25.8/gobject/gmarshal.c:636
#3  0x0053f9f9 in g_type_class_meta_marshal (closure=0x8d7e0a8, return_value=0x0, n_param_values=2, param_values=0x9731940, 
    invocation_hint=0xbf9aa9c0, marshal_data=0x74) at /build/buildd/glib2.0-2.25.8/gobject/gclosure.c:878
#4  0x00541392 in IA__g_closure_invoke (closure=0x8d7e0a8, return_value=0x0, n_param_values=2, param_values=0x9731940, 
    invocation_hint=0xbf9aa9c0) at /build/buildd/glib2.0-2.25.8/gobject/gclosure.c:767
#5  0x00558696 in signal_emit_unlocked_R (node=<value optimized out>, detail=<value optimized out>, instance=0x92de1c0, 
    emission_return=0x0, instance_and_params=0x9731940) at /build/buildd/glib2.0-2.25.8/gobject/gsignal.c:3291
#6  0x0055a0b4 in IA__g_signal_emit_valist (instance=0x92de1c0, signal_id=193, detail=0, var_args=0xbf9aab80 "\364\177\071")
    at /build/buildd/glib2.0-2.25.8/gobject/gsignal.c:2984
#7  0x0055a816 in IA__g_signal_emit (instance=0x92de1c0, signal_id=193, detail=0)
    at /build/buildd/glib2.0-2.25.8/gobject/gsignal.c:3041
#8  0x002e67f4 in clutter_actor_queue_redraw_with_origin (self=0x92de1c0) at ./clutter-actor.c:1663
#9  clutter_actor_queue_redraw (self=0x92de1c0) at ./clutter-actor.c:4631
#10 0x002e76a3 in clutter_actor_set_opacity (self=0x92de1c0, opacity=9 '\t') at ./clutter-actor.c:6493
#11 0x002f0a9f in clutter_actor_set_property (object=0x92de1c0, prop_id=23, value=0xbf9aaccc, pspec=0x8d64f58)
    at ./clutter-actor.c:2670
#12 0x0054778c in object_set_property (object=0x92de1c0, property_name=0x96b9ac0 "opacity", value=0xbf9aad5c)
    at /build/buildd/glib2.0-2.25.8/gobject/gobject.c:976
#13 IA__g_object_set_property (object=0x92de1c0, property_name=0x96b9ac0 "opacity", value=0xbf9aad5c)
    at /build/buildd/glib2.0-2.25.8/gobject/gobject.c:1693
#14 0x002f3f35 in on_alpha_notify (gobject=0x982bc28, pspec=0x8c1ac08, animation=0x9731b40) at ./clutter-animation.c:1053
#15 0x0054fc7c in IA__g_cclosure_marshal_VOID__PARAM (closure=0x9749ae8, return_value=0x0, n_param_values=2, 
    param_values=0x8e39a28, invocation_hint=0xbf9aaee0, marshal_data=0x2f3d00)
    at /build/buildd/glib2.0-2.25.8/gobject/gmarshal.c:531
#16 0x00541392 in IA__g_closure_invoke (closure=0x9749ae8, return_value=0x0, n_param_values=2, param_values=0x8e39a28, 
    invocation_hint=0xbf9aaee0) at /build/buildd/glib2.0-2.25.8/gobject/gclosure.c:767
#17 0x00558a45 in signal_emit_unlocked_R (node=<value optimized out>, detail=<value optimized out>, instance=0x982bc28, 
    emission_return=0x0, instance_and_params=0x8e39a28) at /build/buildd/glib2.0-2.25.8/gobject/gsignal.c:3253
#18 0x0055a0b4 in IA__g_signal_emit_valist (instance=0x982bc28, signal_id=1, detail=1230, 
    var_args=0xbf9ab0a0 "$\005", <incomplete sequence \317>) at /build/buildd/glib2.0-2.25.8/gobject/gsignal.c:2984
#19 0x0055a816 in IA__g_signal_emit (instance=0x982bc28, signal_id=1, detail=1230)
    at /build/buildd/glib2.0-2.25.8/gobject/gsignal.c:3041
#20 0x00545941 in g_object_dispatch_properties_changed (object=0x982bc28, n_pspecs=1, pspecs=0xbf9ab110)
    at /build/buildd/glib2.0-2.25.8/gobject/gobject.c:802
#21 0x005420cf in g_object_notify_dispatcher (object=0x982bc28, n_pspecs=1, pspecs=0xbf9ab110)
    at /build/buildd/glib2.0-2.25.8/gobject/gobject.c:329
#22 0x00547ec3 in g_object_notify_queue_thaw (object=0x982bc28, property_name=0x378a5a "alpha")
    at /build/buildd/glib2.0-2.25.8/gobject/gobjectnotifyqueue.c:120
#23 IA__g_object_notify (object=0x982bc28, property_name=0x378a5a "alpha")
    at /build/buildd/glib2.0-2.25.8/gobject/gobject.c:891
#24 0x002f2bfd in timeline_new_frame_cb (timeline=0x9737848, current_frame_num=161, alpha=0x982bc28) at ./clutter-alpha.c:156
#25 0x005501bc in IA__g_cclosure_marshal_VOID__INT (closure=0x97477d0, return_value=0x0, n_param_values=2, 
    param_values=0x9731990, invocation_hint=0xbf9ab2f0, marshal_data=0x2f2bc0)
    at /build/buildd/glib2.0-2.25.8/gobject/gmarshal.c:216
#26 0x00541392 in IA__g_closure_invoke (closure=0x97477d0, return_value=0x0, n_param_values=2, param_values=0x9731990, 
    invocation_hint=0xbf9ab2f0) at /build/buildd/glib2.0-2.25.8/gobject/gclosure.c:767
#27 0x00558a45 in signal_emit_unlocked_R (node=<value optimized out>, detail=<value optimized out>, instance=0x9737848, 
    emission_return=0x0, instance_and_params=0x9731990) at /build/buildd/glib2.0-2.25.8/gobject/gsignal.c:3253
#28 0x0055a0b4 in IA__g_signal_emit_valist (instance=0x9737848, signal_id=180, detail=0, var_args=0xbf9ab4b0 "")
    at /build/buildd/glib2.0-2.25.8/gobject/gsignal.c:2984
#29 0x0055a816 in IA__g_signal_emit (instance=0x9737848, signal_id=180, detail=0)
    at /build/buildd/glib2.0-2.25.8/gobject/gsignal.c:3041
#30 0x00341731 in emit_frame_signal (timeline=0x9737848, tick_time=0x8d42e88) at ./clutter-timeline.c:526
#31 clutter_timeline_do_frame (timeline=0x9737848, tick_time=0x8d42e88) at ./clutter-timeline.c:588
#32 clutter_timeline_do_tick (timeline=0x9737848, tick_time=0x8d42e88) at ./clutter-timeline.c:1244
#33 0x0031e90e in _clutter_master_clock_advance (master_clock=0x8d42e78) at ./clutter-master-clock.c:552
#34 0x0031eb16 in clutter_clock_dispatch (source=0x8d59e48, callback=0, user_data=0x0) at ./clutter-master-clock.c:354
#35 0x00c60da5 in g_main_dispatch (context=0x8be1b50) at /build/buildd/glib2.0-2.25.8/glib/gmain.c:2044
#36 IA__g_main_context_dispatch (context=0x8be1b50) at /build/buildd/glib2.0-2.25.8/glib/gmain.c:2597
#37 0x00c64b88 in g_main_context_iterate (context=0x8be1b50, block=<value optimized out>, dispatch=1, self=0x8bc9290)
    at /build/buildd/glib2.0-2.25.8/glib/gmain.c:2675
#38 0x00c650c7 in IA__g_main_loop_run (loop=0x8be04d0) at /build/buildd/glib2.0-2.25.8/glib/gmain.c:2883
#39 0x08085573 in main ()

(gdb) bt full
#0  0x003302b9 in _clutter_stage_has_full_redraw_queued (stage=0x8f63d98) at ./clutter-stage.c:747
        stage_window = 0x0
#1  0x002ea354 in clutter_actor_real_queue_redraw (self=0x92de1c0, origin=0x92de1c0) at ./clutter-actor.c:1698
        stage = 0x0
        parent = <value optimized out>
#2  0x0054f6ac in IA__g_cclosure_marshal_VOID__OBJECT (closure=0x8d7e0a8, return_value=0x0, n_param_values=2, 
    param_values=0x9731940, invocation_hint=0xbf9aa9c0, marshal_data=0x2ea300)
    at /build/buildd/glib2.0-2.25.8/gobject/gmarshal.c:636
        data1 = 0x92de1c0
        data2 = 0x8d321d0
        __PRETTY_FUNCTION__ = "IA__g_cclosure_marshal_VOID__OBJECT"
#3  0x0053f9f9 in g_type_class_meta_marshal (closure=0x8d7e0a8, return_value=0x0, n_param_values=2, param_values=0x9731940, 
    invocation_hint=0xbf9aa9c0, marshal_data=0x74) at /build/buildd/glib2.0-2.25.8/gobject/gclosure.c:878
        callback = <value optimized out>
#4  0x00541392 in IA__g_closure_invoke (closure=0x8d7e0a8, return_value=0x0, n_param_values=2, param_values=0x9731940, 
    invocation_hint=0xbf9aa9c0) at /build/buildd/glib2.0-2.25.8/gobject/gclosure.c:767
        marshal = 0x53f9b0 <g_type_class_meta_marshal>
        marshal_data = 0x74
        __PRETTY_FUNCTION__ = "IA__g_closure_invoke"
#5  0x00558696 in signal_emit_unlocked_R (node=<value optimized out>, detail=<value optimized out>, instance=0x92de1c0, 
    emission_return=0x0, instance_and_params=0x9731940) at /build/buildd/glib2.0-2.25.8/gobject/gsignal.c:3291
        accumulator = 0x0
        emission = {next = 0xbf9ab2e8, instance = 0x92de1c0, ihint = {signal_id = 193, detail = 0, 
            run_type = G_SIGNAL_RUN_LAST}, state = EMISSION_RUN, chain_type = 149755280}
        class_closure = 0x8d7e0a8
        handler_list = 0x0
        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 = 193
        max_sequential_handler_number = 4799
        return_value_altered = 0
#6  0x0055a0b4 in IA__g_signal_emit_valist (instance=0x92de1c0, signal_id=193, detail=0, var_args=0xbf9aab80 "\364\177\071")
    at /build/buildd/glib2.0-2.25.8/gobject/gsignal.c:2984
        signal_return_type = 4
        node = 0x8d7e0e8
        i = <value optimized out>
        n_params = 1
        __PRETTY_FUNCTION__ = "IA__g_signal_emit_valist"
#7  0x0055a816 in IA__g_signal_emit (instance=0x92de1c0, signal_id=193, detail=0)
    at /build/buildd/glib2.0-2.25.8/gobject/gsignal.c:3041
No locals.
#8  0x002e67f4 in clutter_actor_queue_redraw_with_origin (self=0x92de1c0) at ./clutter-actor.c:1663
No locals.
#9  clutter_actor_queue_redraw (self=0x92de1c0) at ./clutter-actor.c:4631
        __PRETTY_FUNCTION__ = "clutter_actor_queue_redraw"
#10 0x002e76a3 in clutter_actor_set_opacity (self=0x92de1c0, opacity=9 '\t') at ./clutter-actor.c:6493
        priv = 0x0
        __PRETTY_FUNCTION__ = "clutter_actor_set_opacity"
#11 0x002f0a9f in clutter_actor_set_property (object=0x92de1c0, prop_id=23, value=0xbf9aaccc, pspec=0x8d64f58)
    at ./clutter-actor.c:2670
        priv = 0x92de1e0
#12 0x0054778c in object_set_property (object=0x92de1c0, property_name=0x96b9ac0 "opacity", value=0xbf9aad5c)
    at /build/buildd/glib2.0-2.25.8/gobject/gobject.c:976
        tmp_value = {g_type = 28, data = {{v_int = 9, v_uint = 9, v_long = 9, v_ulong = 9, v_int64 = 9, v_uint64 = 9, 
              v_float = 1.26116862e-44, v_double = 4.4465908125712189e-323, v_pointer = 0x9}, {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}}}
        param_id = 23
#13 IA__g_object_set_property (object=0x92de1c0, property_name=0x96b9ac0 "opacity", value=0xbf9aad5c)
    at /build/buildd/glib2.0-2.25.8/gobject/gobject.c:1693
        nqueue = <value optimized out>
        pspec = <value optimized out>
        __PRETTY_FUNCTION__ = "IA__g_object_set_property"
#14 0x002f3f35 in on_alpha_notify (gobject=0x982bc28, pspec=0x8c1ac08, animation=0x9731b40) at ./clutter-animation.c:1053
        p_name = 0x96b9ac0 "opacity"
        interval = 0x983b300
        value = {g_type = 28, data = {{v_int = 9, v_uint = 9, v_long = 9, v_ulong = 9, v_int64 = 9, v_uint64 = 9, 
              v_float = 1.26116862e-44, v_double = 4.4465908125712189e-323, v_pointer = 0x9}, {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}}}
        apply = <value optimized out>
        priv = 0x9731b50
        properties = 0x8e7c260
        p = 0x8e7c260
        alpha_value = 0.96197500000000002
        is_animatable = 0
        animatable = 0x0
        __PRETTY_FUNCTION__ = "on_alpha_notify"
#15 0x0054fc7c in IA__g_cclosure_marshal_VOID__PARAM (closure=0x9749ae8, return_value=0x0, n_param_values=2, 
    param_values=0x8e39a28, invocation_hint=0xbf9aaee0, marshal_data=0x2f3d00)
    at /build/buildd/glib2.0-2.25.8/gobject/gmarshal.c:531
        data1 = 0x982bc28
        data2 = 0x9731b40
        __PRETTY_FUNCTION__ = "IA__g_cclosure_marshal_VOID__PARAM"
#16 0x00541392 in IA__g_closure_invoke (closure=0x9749ae8, return_value=0x0, n_param_values=2, param_values=0x8e39a28, 
    invocation_hint=0xbf9aaee0) at /build/buildd/glib2.0-2.25.8/gobject/gclosure.c:767
        marshal = 0x54fbe0 <IA__g_cclosure_marshal_VOID__PARAM>
        marshal_data = 0x0
        __PRETTY_FUNCTION__ = "IA__g_closure_invoke"
#17 0x00558a45 in signal_emit_unlocked_R (node=<value optimized out>, detail=<value optimized out>, instance=0x982bc28, 
    emission_return=0x0, instance_and_params=0x8e39a28) at /build/buildd/glib2.0-2.25.8/gobject/gsignal.c:3253
        tmp = <value optimized out>
        handler = 0x983a5a0
        accumulator = 0x0
        emission = {next = 0x0, instance = 0x982bc28, ihint = {signal_id = 1, detail = 1230, run_type = G_SIGNAL_RUN_FIRST}, 
          state = EMISSION_RUN, chain_type = 4}
        class_closure = 0x8bca800
        handler_list = <value optimized out>
        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 = 1
        max_sequential_handler_number = 4799
        return_value_altered = 1
#18 0x0055a0b4 in IA__g_signal_emit_valist (instance=0x982bc28, signal_id=1, detail=1230, 
    var_args=0xbf9ab0a0 "$\005", <incomplete sequence \317>) at /build/buildd/glib2.0-2.25.8/gobject/gsignal.c:2984
        signal_return_type = 4
        node = 0x8be3d20
        i = <value optimized out>
        n_params = 1
        __PRETTY_FUNCTION__ = "IA__g_signal_emit_valist"
#19 0x0055a816 in IA__g_signal_emit (instance=0x982bc28, signal_id=1, detail=1230)
    at /build/buildd/glib2.0-2.25.8/gobject/gsignal.c:3041
No locals.
#20 0x00545941 in g_object_dispatch_properties_changed (object=0x982bc28, n_pspecs=1, pspecs=0xbf9ab110)
    at /build/buildd/glib2.0-2.25.8/gobject/gobject.c:802
        i = 1
#21 0x005420cf in g_object_notify_dispatcher (object=0x982bc28, n_pspecs=1, pspecs=0xbf9ab110)
    at /build/buildd/glib2.0-2.25.8/gobject/gobject.c:329
No locals.
#22 0x00547ec3 in g_object_notify_queue_thaw (object=0x982bc28, property_name=0x378a5a "alpha")
    at /build/buildd/glib2.0-2.25.8/gobject/gobjectnotifyqueue.c:120
        context = 0x57637c
        pspecs_mem = {0x8c1ac08, 0x0, 0x982bc38, 0xbf9ab128, 0x0 <repeats 12 times>}
        pspecs = 0xbf9ab110
        slist = <value optimized out>
        n_pspecs = 1
#23 IA__g_object_notify (object=0x982bc28, property_name=0x378a5a "alpha")
    at /build/buildd/glib2.0-2.25.8/gobject/gobject.c:891
        nqueue = <value optimized out>
        pspec = <value optimized out>
        __PRETTY_FUNCTION__ = "IA__g_object_notify"
#24 0x002f2bfd in timeline_new_frame_cb (timeline=0x9737848, current_frame_num=161, alpha=0x982bc28) at ./clutter-alpha.c:156
        priv = 0x982bc38
#25 0x005501bc in IA__g_cclosure_marshal_VOID__INT (closure=0x97477d0, return_value=0x0, n_param_values=2, 
    param_values=0x9731990, invocation_hint=0xbf9ab2f0, marshal_data=0x2f2bc0)
    at /build/buildd/glib2.0-2.25.8/gobject/gmarshal.c:216
        data1 = 0x9737848
        data2 = 0x982bc28
        __PRETTY_FUNCTION__ = "IA__g_cclosure_marshal_VOID__INT"
#26 0x00541392 in IA__g_closure_invoke (closure=0x97477d0, return_value=0x0, n_param_values=2, param_values=0x9731990, 
    invocation_hint=0xbf9ab2f0) at /build/buildd/glib2.0-2.25.8/gobject/gclosure.c:767
        marshal = 0x80605fc <g_cclosure_marshal_VOID__INT@plt>
        marshal_data = 0x0
        __PRETTY_FUNCTION__ = "IA__g_closure_invoke"
#27 0x00558a45 in signal_emit_unlocked_R (node=<value optimized out>, detail=<value optimized out>, instance=0x9737848, 
    emission_return=0x0, instance_and_params=0x9731990) at /build/buildd/glib2.0-2.25.8/gobject/gsignal.c:3253
        tmp = <value optimized out>
        handler = 0x9848c60
        accumulator = 0x0
        emission = {next = 0x0, instance = 0x9737848, ihint = {signal_id = 180, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, 
          state = EMISSION_RUN, chain_type = 4}
        class_closure = 0x8d63520
        handler_list = <value optimized out>
        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 = 180
        max_sequential_handler_number = 4799
        return_value_altered = 0
#28 0x0055a0b4 in IA__g_signal_emit_valist (instance=0x9737848, signal_id=180, detail=0, var_args=0xbf9ab4b0 "")
    at /build/buildd/glib2.0-2.25.8/gobject/gsignal.c:2984
        signal_return_type = 4
        node = 0x8c50a78
        i = <value optimized out>
        n_params = 1
        __PRETTY_FUNCTION__ = "IA__g_signal_emit_valist"
#29 0x0055a816 in IA__g_signal_emit (instance=0x9737848, signal_id=180, detail=0)
    at /build/buildd/glib2.0-2.25.8/gobject/gsignal.c:3041
No locals.
#30 0x00341731 in emit_frame_signal (timeline=0x9737848, tick_time=0x8d42e88) at ./clutter-timeline.c:526
No locals.
#31 clutter_timeline_do_frame (timeline=0x9737848, tick_time=0x8d42e88) at ./clutter-timeline.c:588
        priv = 0x9737858
#32 clutter_timeline_do_tick (timeline=0x9737848, tick_time=0x8d42e88) at ./clutter-timeline.c:1244
        msecs = <value optimized out>
        priv = <value optimized out>
        __PRETTY_FUNCTION__ = "clutter_timeline_do_tick"
#33 0x0031e90e in _clutter_master_clock_advance (master_clock=0x8d42e78) at ./clutter-master-clock.c:552
        timelines = 0x96b0058
        l = 0x8ef2230
        __PRETTY_FUNCTION__ = "_clutter_master_clock_advance"
#34 0x0031eb16 in clutter_clock_dispatch (source=0x8d59e48, callback=0, user_data=0x0) at ./clutter-master-clock.c:354
        master_clock = 0x8d42e78
        stage_manager = <value optimized out>
        stages = 0x8ceb2e0
        l = 0x0
        stages_updated = 13565940
#35 0x00c60da5 in g_main_dispatch (context=0x8be1b50) at /build/buildd/glib2.0-2.25.8/glib/gmain.c:2044
        dispatch = 0x31ea60 <clutter_clock_dispatch>
        user_data = 0x0
        callback = 0
        cb_funcs = 0x0
        cb_data = 0x0
        current_source_link = {data = 0x8d59e48, next = 0x0}
        source = 0x8d59e48
        current = 0x8c500b8
        i = 0
#36 IA__g_main_context_dispatch (context=0x8be1b50) at /build/buildd/glib2.0-2.25.8/glib/gmain.c:2597
No locals.
#37 0x00c64b88 in g_main_context_iterate (context=0x8be1b50, block=<value optimized out>, dispatch=1, self=0x8bc9290)
    at /build/buildd/glib2.0-2.25.8/glib/gmain.c:2675
        max_priority = 150
        timeout = 0
        some_ready = 1
        nfds = <value optimized out>
        allocated_nfds = <value optimized out>
        fds = <value optimized out>
        __PRETTY_FUNCTION__ = "g_main_context_iterate"
#38 0x00c650c7 in IA__g_main_loop_run (loop=0x8be04d0) at /build/buildd/glib2.0-2.25.8/glib/gmain.c:2883
        self = 0x8bc9290
        __PRETTY_FUNCTION__ = "IA__g_main_loop_run"
#39 0x08085573 in main ()
No symbol table info available.