===== net/ipv6/route.c 1.102 vs edited =====
--- 1.102/net/ipv6/route.c	2004-11-30 14:24:46 +11:00
+++ edited/net/ipv6/route.c	2004-12-18 18:13:59 +11:00
@@ -379,6 +379,7 @@
 	int err;
 
 	write_lock_bh(&rt6_lock);
+	WARN_ON(rt->u.dst->obsolete);
 	err = fib6_add(&ip6_routing_table, rt, nlh, _rtattr);
 	write_unlock_bh(&rt6_lock);