Program received signal SIGTRAP, Trace/breakpoint trap. g_logv (log_domain=0xb7343956 "GLib-GObject", log_level=G_LOG_LEVEL_CRITICAL, format=0x0, args=0x0) at /build/glib2.0-EvFudu/glib2.0-2.42.1/./glib/gmessages.c:1046 (gdb) bt #0 g_logv (log_domain=0xb7343956 "GLib-GObject", log_level=G_LOG_LEVEL_CRITICAL, format=0x0, args=0x0) at /build/glib2.0-EvFudu/glib2.0-2.42.1/./glib/gmessages.c:1046 #1 0xb71e7fe5 in g_log (log_domain=0xb7343956 "GLib-GObject", log_level=G_LOG_LEVEL_CRITICAL, format=0xb7233b81 "%s: assertion '%s' failed") at /build/glib2.0-EvFudu/glib2.0-2.42.1/./glib/gmessages.c:1079 #2 0xb71e8019 in g_return_if_fail_warning (log_domain=0xb7343956 "GLib-GObject", pretty_function=0xb7346df4 <__FUNCTION__.12910> "g_object_ref", expression=0xb7345c00 "object->ref_count > 0") at /build/glib2.0-EvFudu/glib2.0-2.42.1/./glib/gmessages.c:1088 #3 0xb731bf95 in g_object_ref (_object=0x8069668) at /build/glib2.0-EvFudu/glib2.0-2.42.1/./gobject/gobject.c:3042 #4 0xb73317cc in g_signal_emit_valist (instance=0x8069668, signal_id=201, detail=0, var_args=0xbfffe27c "\033F\246\267h\226\006\b\360\377") at /build/glib2.0-EvFudu/glib2.0-2.42.1/./gobject/gsignal.c:3217 #5 0xb73320d5 in g_signal_emit (instance=0x8069668, signal_id=201, detail=0) at /build/glib2.0-EvFudu/glib2.0-2.42.1/./gobject/gsignal.c:3365 #6 0xb7a64694 in gtk_style_context_do_invalidate (context=0x8069668, changes=0x8265300) at /build/gtk+3.0-IGfsio/gtk+3.0-3.14.5/./gtk/gtkstylecontext.c:2916 #7 0xb7a66c32 in gtk_style_context_invalidate (context=0x8069668) at /build/gtk+3.0-IGfsio/gtk+3.0-3.14.5/./gtk/gtkstylecontext.c:3170 #8 0xb7a66d10 in _gtk_style_context_queue_invalidate (context=0x8069668, change=65520) at /build/gtk+3.0-IGfsio/gtk+3.0-3.14.5/./gtk/gtkstylecontext.c:3140 #9 0xb7a67fb7 in gtk_style_context_finalize (object=0x8069668) at /build/gtk+3.0-IGfsio/gtk+3.0-3.14.5/./gtk/gtkstylecontext.c:621 #10 0xb731c3b5 in g_object_unref (_object=0x8069668) at /build/glib2.0-EvFudu/glib2.0-2.42.1/./gobject/gobject.c:3170 #11 0xb6f70edd in meta_style_info_unref (style_info=0x8248dd0) at ui/theme.c:5927 #12 0xb6f598e2 in update_style_contexts (frames=0x81c51a0) at ui/frames.c:210 #13 0xb6f5cecf in meta_frames_style_updated (widget=0x81c51a0) at ui/frames.c:478 #14 0xb73194c7 in g_cclosure_marshal_VOID__VOIDv (closure=0x8060b50, return_value=0x0, instance=0x81c51a0, args=0xbfffe5bc "'\202\261\267", marshal_data=0xb6f5cea0 , n_params=0, param_types=0x0) at /build/glib2.0-EvFudu/glib2.0-2.42.1/./gobject/gmarshal.c:115 #15 0xb73162e2 in g_type_class_meta_marshalv (closure=0x8060b50, return_value=0x0, instance=0x81c51a0, args=0xbfffe5bc "'\202\261\267", marshal_data=0x178, n_params=0, param_types=0x0) at /build/glib2.0-EvFudu/glib2.0-2.42.1/./gobject/gclosure.c:988 #16 0xb7317a5f in _g_closure_invoke_va (closure=0x8060b50, return_value=0x0, instance=0x81c51a0, args=0xbfffe5bc "'\202\261\267", n_params=0, param_types=0x0) at /build/glib2.0-EvFudu/glib2.0-2.42.1/./gobject/gclosure.c:831 #17 0xb73317f9 in g_signal_emit_valist (instance=0x81c51a0, signal_id=16, detail=0, var_args=0xbfffe5bc "'\202\261\267") at /build/glib2.0-EvFudu/glib2.0-2.42.1/./gobject/gsignal.c:3218 #18 0xb73320d5 in g_signal_emit (instance=0x81c51a0, signal_id=16, detail=0) at /build/glib2.0-EvFudu/glib2.0-2.42.1/./gobject/gsignal.c:3365 #19 0xb7b18491 in gtk_widget_realize (widget=0x81c51a0) at /build/gtk+3.0-IGfsio/gtk+3.0-3.14.5/./gtk/gtkwidget.c:5506 #20 0xb7b25b99 in gtk_window_show (widget=0x81c51a0) at /build/gtk+3.0-IGfsio/gtk+3.0-3.14.5/./gtk/gtkwindow.c:5780 #21 0xb731946c in g_cclosure_marshal_VOID__VOID (closure=0x8060810, return_value=0x0, n_param_values=1, param_values=0xbfffe870, invocation_hint=0xbfffe828, marshal_data=0xb7b25950 ) at /build/glib2.0-EvFudu/glib2.0-2.42.1/./gobject/gmarshal.c:85 #22 0xb7316394 in g_type_class_meta_marshal (closure=0x8060810, return_value=0x0, n_param_values=1, param_values=0xbfffe870, invocation_hint=0xbfffe828, marshal_data=0x50) at /build/glib2.0-EvFudu/glib2.0-2.42.1/./gobject/gclosure.c:961 #23 0xb731783b in g_closure_invoke (closure=0x8060810, return_value=0x0, n_param_values=1, param_values=0xbfffe870, invocation_hint=0xbfffe828) at /build/glib2.0-EvFudu/glib2.0-2.42.1/./gobject/gclosure.c:768 #24 0xb732923a in signal_emit_unlocked_R (node=0x0, node entry=0x8060838, detail=detail entry=0, instance=0x81c51a0, emission_return=0x0, instance_and_params=0xbfffe870) at /build/glib2.0-EvFudu/glib2.0-2.42.1/./gobject/gsignal.c:3483 #25 0xb7331eda in g_signal_emit_valist (instance=0x81c51a0, signal_id=4, detail=0, var_args=0xbfffe9bc "\331<\261\267\307<\261\267\200\031\373\266\240Q\034\b+c\367\266\240Q\034\b\260\252\005\b\200\031\373\266\311b\367\266\b\344\033\b\200\031\373\266\b\344\033\b8\260\b\b\r\021v") at /build/glib2.0-EvFudu/glib2.0-2.42.1/./gobject/gsignal.c:3309 #26 0xb73320d5 in g_signal_emit (instance=0x81c51a0, signal_id=4, detail=0) at /build/glib2.0-EvFudu/glib2.0-2.42.1/./gobject/gsignal.c:3365 #27 0xb7b13d8f in gtk_widget_show (widget=0x81c51a0) at /build/gtk+3.0-IGfsio/gtk+3.0-3.14.5/./gtk/gtkwidget.c:4853 #28 0xb6f7632b in meta_ui_new (xdisplay=0x807d0a8, screen=0x8060d98) at ui/ui.c:286 #29 0xb6f41d2a in meta_screen_new (display=0x80b7718, number=0, timestamp=7737613) at core/screen.c:586 #30 0xb6f2ec6b in meta_display_open () at core/display.c:708 #31 0x08049f22 in main (argc=1, argv=0xbffff3a4) at core/main.c:574