@@ -30,10 +30,13 @@
 void
 of_once(of_once_t *control, void (*func)(void))
 {
 	if (of_atomic_int_cmpswap(control, 0, 1)) {
 		func();
+
+		of_memory_barrier();
+
 		of_atomic_int_inc(control);
 	} else
 		while (*control == 1)
 			of_thread_yield();
 }