Re: kernel panic in fib6_age (linux-3.6.6) and sugguested fix

How about this one below? without modifying the return value:
                        __u8 neigh_flags = 0;


                        neigh = dst_neigh_lookup(&rt->dst,
&rt->rt6i_gateway);
-                       if (neigh) {
+                       if (!IS_ERR(neigh)) {

                                neigh_flags = neigh->flags;
                                neigh_release(neigh);
                        }

you are correct, this one avoid breaking out of the process of the fib
table traveling

Zhouyi