Program received signal SIGSEGV, Segmentation fault.
0x00007fffecedea11 in ?? () from /usr/lib/liboverlay-scrollbar-0.2.so.0
(gdb) bt
#0  0x00007fffecedea11 in ?? () from /usr/lib/liboverlay-scrollbar-0.2.so.0
#1  0x00007fffecee254b in ?? () from /usr/lib/liboverlay-scrollbar-0.2.so.0
#2  0x00007ffff6937d54 in g_closure_invoke (closure=0xcdf090, return_value=0x0, n_param_values=1, 
    param_values=0x153dea0, invocation_hint=<value optimized out>)
    at /build/buildd/glib2.0-2.29.8/./gobject/gclosure.c:771
#3  0x00007ffff69499f4 in signal_emit_unlocked_R (node=<value optimized out>, detail=0, 
    instance=0x13024e0, emission_return=0x0, instance_and_params=0x153dea0)
    at /build/buildd/glib2.0-2.29.8/./gobject/gsignal.c:3294
#4  0x00007ffff69531c7 in g_signal_emit_valist (instance=<value optimized out>, 
    signal_id=<value optimized out>, detail=<value optimized out>, var_args=0x7fffffffaff8)
    at /build/buildd/glib2.0-2.29.8/./gobject/gsignal.c:2987
#5  0x00007ffff6953392 in g_signal_emit (instance=<value optimized out>, 
    signal_id=<value optimized out>, detail=<value optimized out>)
    at /build/buildd/glib2.0-2.29.8/./gobject/gsignal.c:3044
#6  0x00007ffff79f6be2 in gtk_widget_unrealize () from /usr/lib/libgtk-x11-2.0.so.0
#7  0x00007ffff79f6fc5 in gtk_widget_unparent () from /usr/lib/libgtk-x11-2.0.so.0
#8  0x00007ffff7821e33 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#9  0x00007ffff6937d54 in g_closure_invoke (closure=0xec0a50, return_value=0x0, n_param_values=2, 
    param_values=0x14a6cf0, invocation_hint=<value optimized out>)
    at /build/buildd/glib2.0-2.29.8/./gobject/gclosure.c:771
#10 0x00007ffff6949397 in signal_emit_unlocked_R (node=<value optimized out>, detail=0, 
    instance=0x132d3d0, emission_return=0x0, instance_and_params=0x14a6cf0)
    at /build/buildd/glib2.0-2.29.8/./gobject/gsignal.c:3186
#11 0x00007ffff69531c7 in g_signal_emit_valist (instance=<value optimized out>, 
    signal_id=<value optimized out>, detail=<value optimized out>, var_args=0x7fffffffb4f8)
    at /build/buildd/glib2.0-2.29.8/./gobject/gsignal.c:2987
#12 0x00007ffff6953392 in g_signal_emit (instance=<value optimized out>, 
    signal_id=<value optimized out>, detail=<value optimized out>)
    at /build/buildd/glib2.0-2.29.8/./gobject/gsignal.c:3044
#13 0x00007ffff79f9b55 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#14 0x00007ffff693b780 in g_object_run_dispose (object=0x13024e0)
    at /build/buildd/glib2.0-2.29.8/./gobject/gobject.c:945
#15 0x00000000004d80b4 in ?? ()