#0  0x00007f176cb2ac9c in g_type_check_instance_is_a (type_instance=type_instance@entry=0x17a0260, iface_type=<optimized out>) at /build/buildd/glib2.0-2.37.93/./gobject/gtype.c:3975
  [Error: /build/buildd/glib2.0-2.37.93/./gobject/gtype.c was not found in source tree]
#1  0x00007f176c5ec7e6 in lightdm_layout_get_description (layout=layout@entry=0x17a0260) at layout.c:241
  [Error: layout.c was not found in source tree]
#2  0x000000000041dff3 in menu_bar_cmp_layout (b=0x17a0260, a=<optimized out>) at menubar.c:1081
#3  _menu_bar_cmp_layout_gcompare_func (a=<optimized out>, b=0x17a0260) at menubar.c:1805
#4  0x00007f176c83b469 in g_list_sort_real (list=0x7ffffc9cbe20, compare_func=compare_func@entry=0x41dfd0 <_menu_bar_cmp_layout_gcompare_func>, user_data=user_data@entry=0x0) at /build/buildd/glib2.0-2.37.93/./glib/glist.c:1105
  [Error: /build/buildd/glib2.0-2.37.93/./glib/glist.c was not found in source tree]
#5  0x00007f176c83bfd7 in g_list_sort (list=<optimized out>, compare_func=compare_func@entry=0x41dfd0 <_menu_bar_cmp_layout_gcompare_func>) at /build/buildd/glib2.0-2.37.93/./glib/glist.c:1149
  [Error: /build/buildd/glib2.0-2.37.93/./glib/glist.c was not found in source tree]
#6  0x000000000041fa34 in menu_bar_recreate_menu (layouts_in=0x15c2500, self=0x152e1e0) at menubar.c:1837
#7  menu_bar_set_layouts (self=0x152e1e0, layouts=0x15c2500) at menubar.c:518
#8  0x0000000000431c57 in _user_list___lambda28_ (self=0x1664500) at user-list.c:7017
  7012: 		GList* _tmp7_;
  7013: 		_tmp4_ = greeter_list_get_menubar ((GreeterList*) self);
  7014: 		_tmp5_ = _tmp4_;
  7015: 		_tmp6_ = userbox;
  7016: 		_tmp7_ = _tmp6_->keyboard_layouts;
  7017: 		menu_bar_set_layouts (_tmp5_, _tmp7_);
  7018: 	} else {
  7019: 		MenuBar* _tmp8_;
  7020: 		MenuBar* _tmp9_;
  7021: 		GList* _tmp10_;
  7022: 		_tmp8_ = greeter_list_get_menubar ((GreeterList*) self);
#9  __user_list___lambda28__greeter_list_entry_displayed_done (_sender=<optimized out>, self=0x1664500) at user-list.c:7034
  7029: 	_g_object_unref0 (userbox);
  7030: }
  7031: 
  7032: 
  7033: static void __user_list___lambda28__greeter_list_entry_displayed_done (GreeterList* _sender, gpointer self) {
  7034: 	_user_list___lambda28_ (self);
  7035: }
  7036: 
  7037: 
  7038: static void _user_list_entry_selected_cb_greeter_list_entry_selected (GreeterList* _sender, const gchar* name, gpointer self) {
  7039: 	user_list_entry_selected_cb (self, name);
#10 0x00007f176cb08517 in _g_closure_invoke_va (closure=0x1687200, return_value=0x0, instance=0x1664500, args=0x7ffffc9cc130, n_params=0, param_types=0x0) at /build/buildd/glib2.0-2.37.93/./gobject/gclosure.c:840
  [Error: /build/buildd/glib2.0-2.37.93/./gobject/gclosure.c was not found in source tree]
#11 0x00007f176cb2234c in g_signal_emit_valist (instance=instance@entry=0x1664500, signal_id=signal_id@entry=212, detail=detail@entry=0, var_args=var_args@entry=0x7ffffc9cc130) at /build/buildd/glib2.0-2.37.93/./gobject/gsignal.c:3238
  [Error: /build/buildd/glib2.0-2.37.93/./gobject/gsignal.c was not found in source tree]
#12 0x00007f176cb23152 in g_signal_emit_by_name (instance=instance@entry=0x1664500, detailed_signal=detailed_signal@entry=0x43c1c8 "entry-displayed-done") at /build/buildd/glib2.0-2.37.93/./gobject/gsignal.c:3426
  [Error: /build/buildd/glib2.0-2.37.93/./gobject/gsignal.c was not found in source tree]
#13 0x000000000041a815 in greeter_list_finished_scrolling (self=0x1664500) at greeter-list.c:2023
  2018: 	g_return_if_fail (self != NULL);
  2019: 	greeter_list_set_scrolling_entry (self, NULL);
  2020: 	_tmp0_ = self->priv->_selected_entry;
  2021: 	prompt_box_show_prompts (_tmp0_);
  2022: 	greeter_list_focus_prompt (self);
  2023: 	g_signal_emit_by_name (self, "entry-displayed-done");
  2024: 	self->mode = GREETER_LIST_MODE_ENTRY;
  2025: }
  2026: 
  2027: 
  2028: void greeter_list_select_entry (GreeterList* self, PromptBox* entry, gdouble direction, gboolean do_scroll) {
#14 greeter_list_animate_scrolling (progress=<optimized out>, self=0x1664500) at greeter-list.c:2011
  2006: 		greeter_list_setup_prompt_box (self, TRUE);
  2007: 		g_signal_emit_by_name (self, "entry-displayed-start");
  2008: 	}
  2009: 	_tmp26_ = progress;
  2010: 	if (_tmp26_ >= 1.0) {
  2011: 		greeter_list_finished_scrolling (self);
  2012: 	}
  2013: }
  2014: 
  2015: 
  2016: static void greeter_list_finished_scrolling (GreeterList* self) {
#15 _greeter_list_animate_scrolling_animate_timer_animate (_sender=<optimized out>, progress=1, self=0x1664500) at greeter-list.c:3026
  3021: 	return result;
  3022: }
  3023: 
  3024: 
  3025: static void _greeter_list_animate_scrolling_animate_timer_animate (AnimateTimer* _sender, gdouble progress, gpointer self) {
  3026: 	greeter_list_animate_scrolling (self, progress);
  3027: }
  3028: 
  3029: 
  3030: static void _greeter_list_on_bus_acquired_gasync_ready_callback (GObject* source_object, GAsyncResult* res, gpointer self) {
  3031: 	greeter_list_on_bus_acquired (self, source_object, res);
#16 0x00007f176cb0ad2e in g_cclosure_marshal_VOID__DOUBLEv (closure=<optimized out>, return_value=<optimized out>, instance=<optimized out>, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, param_types=0x153b5a0) at /build/buildd/glib2.0-2.37.93/./gobject/gmarshal.c:928
  [Error: /build/buildd/glib2.0-2.37.93/./gobject/gmarshal.c was not found in source tree]
#17 0x00007f176cb08517 in _g_closure_invoke_va (closure=0x1686ef0, return_value=0x0, instance=0x7f175c00acc0, args=0x7ffffc9cc4f0, n_params=1, param_types=0x153b5a0) at /build/buildd/glib2.0-2.37.93/./gobject/gclosure.c:840
  [Error: /build/buildd/glib2.0-2.37.93/./gobject/gclosure.c was not found in source tree]
#18 0x00007f176cb2234c in g_signal_emit_valist (instance=instance@entry=0x7f175c00acc0, signal_id=signal_id@entry=183, detail=detail@entry=0, var_args=var_args@entry=0x7ffffc9cc4f0) at /build/buildd/glib2.0-2.37.93/./gobject/gsignal.c:3238
  [Error: /build/buildd/glib2.0-2.37.93/./gobject/gsignal.c was not found in source tree]
#19 0x00007f176cb23152 in g_signal_emit_by_name (instance=instance@entry=0x7f175c00acc0, detailed_signal=detailed_signal@entry=0x439ca0 "animate") at /build/buildd/glib2.0-2.37.93/./gobject/gsignal.c:3426
  [Error: /build/buildd/glib2.0-2.37.93/./gobject/gsignal.c was not found in source tree]
#20 0x000000000040d776 in animate_timer_animate_cb (self=0x7f175c00acc0) at animate-timer.c:180
  175: 	}
  176: 	_tmp2_ = g_get_monotonic_time ();
  177: 	_tmp3_ = animate_timer_calculate_progress (self, (GTimeSpan) _tmp2_);
  178: 	animate_timer_set_progress (self, _tmp3_);
  179: 	_tmp4_ = self->priv->_progress;
  180: 	g_signal_emit_by_name (self, "animate", _tmp4_);
  181: 	_tmp5_ = self->priv->_progress;
  182: 	if (_tmp5_ >= 1.0) {
  183: 		self->priv->timeout = (guint) 0;
  184: 		result = FALSE;
  185: 		return result;
#21 _animate_timer_animate_cb_gsource_func (self=0x7f175c00acc0) at animate-timer.c:121
  116: }
  117: 
  118: 
  119: static gboolean _animate_timer_animate_cb_gsource_func (gpointer self) {
  120: 	gboolean result;
  121: 	result = animate_timer_animate_cb (self);
  122: 	return result;
  123: }
  124: 
  125: 
  126: void animate_timer_reset (AnimateTimer* self, gint temp_speed) {
#22 0x00007f176c83ff23 in g_source_get_time (source=<optimized out>) at /build/buildd/glib2.0-2.37.93/./glib/gmain.c:4243
  [Error: /build/buildd/glib2.0-2.37.93/./glib/gmain.c was not found in source tree]
#23 0x00007f176c83f3c6 in g_main_dispatch (context=0x14d2b30) at /build/buildd/glib2.0-2.37.93/./glib/gmain.c:3034
  [Error: /build/buildd/glib2.0-2.37.93/./glib/gmain.c was not found in source tree]
#24 g_main_context_dispatch (context=0x14d2b30) at /build/buildd/glib2.0-2.37.93/./glib/gmain.c:3641
  [Error: /build/buildd/glib2.0-2.37.93/./glib/gmain.c was not found in source tree]
#25 0x00007f176c83f718 in g_main_context_poll (priority=0, n_fds=1, fds=0x1745310, timeout=0, context=0x14d2b30) at /build/buildd/glib2.0-2.37.93/./glib/gmain.c:4001
  [Error: /build/buildd/glib2.0-2.37.93/./glib/gmain.c was not found in source tree]
#26 g_main_context_iterate (context=0x14d2b30, block=1820648176, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.37.93/./glib/gmain.c:3707
  [Error: /build/buildd/glib2.0-2.37.93/./glib/gmain.c was not found in source tree]
#27 0x00007f176c83fb1a in g_main_loop_unref (loop=0x17a0260) at /build/buildd/glib2.0-2.37.93/./glib/gmain.c:3838
  [Error: /build/buildd/glib2.0-2.37.93/./glib/gmain.c was not found in source tree]
#28 0x0000000000000035 in ?? ()
#29 0x00007f176e8e8000 in ?? ()
#30 0x00000000016b7b50 in ?? ()
#31 0x00007f176dd743a5 in gtk_main () at /build/buildd/gtk+3.0-3.8.4/./gtk/gtkmain.c:1156
  [Error: /build/buildd/gtk+3.0-3.8.4/./gtk/gtkmain.c was not found in source tree]
#32 0x000000000042dc24 in unity_greeter_main (args=0x7ffffc9cc928, args_length1=1) at unity-greeter.c:1676
#33 0x00007f176b4c9de5 in __libc_start_main (main=0x40d3d0 <main>, argc=1, ubp_av=0x7ffffc9cc928, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffffc9cc918) at libc-start.c:260
  [Error: libc-start.c was not found in source tree]
#34 0x000000000040d419 in _start ()