#0  0x003d9085 in g_type_check_instance_cast (type_instance=0x98f6020, 
    iface_type=152541224) at /build/buildd/glib2.0-2.28.0/gobject/gtype.c:1766
	node = (TypeNode *) 0x69775f68
	iface = (TypeNode *) 0x99646f8
	is_instantiatable = <value optimized out>
	check = <value optimized out>
#1  0x006e5d78 in theme_changed_cb (theme=0x9154c40, data=0x98f6020)
    at /build/buildd/libdbusmenu-0.3.98/./libdbusmenu-gtk/parser.c:123
	image = <value optimized out>
	pmi = <value optimized out>
#2  0x003ce48c in g_cclosure_marshal_VOID__VOID (closure=0x99646f8, 
    return_value=0x0, n_param_values=1, param_values=0x9349278, 
    invocation_hint=0xbfe499a0, marshal_data=0x0)
    at /build/buildd/glib2.0-2.28.0/gobject/gsignal.c:362
	callback = (GMarshalFunc_VOID__VOID) 0x6e5d50 <theme_changed_cb>
	cc = (GCClosure *) 0x99646f8
	data1 = <value optimized out>
	data2 = <value optimized out>
	__PRETTY_FUNCTION__ = "g_cclosure_marshal_VOID__VOID"
#3  0x09154c40 in ?? ()
No symbol table info available.
Backtrace stopped: previous frame inner to this frame (corrupt stack?)