the recently-applied patch to fix the rpc_show_tasks() Oops is incomplete.

this applies over 2.5.68 and should address all of the issues in
rpc_show_tasks().

net/sunrpc/sched.c

@@ -1110,9 +1110,10 @@ void rpc_show_tasks(void)
 	alltask_for_each(t, le, &all_tasks)
 		printk("%05d %04d %04x %06d %8p %6d %8p %08ld %8s %8p %8p\n",
 			t->tk_pid,
-			(t->tk_msg.rpc_proc->p_proc ? t->tk_msg.rpc_proc->p_proc : -1),
+			(t->tk_msg.rpc_proc ? t->tk_msg.rpc_proc->p_proc : -1),
 			t->tk_flags, t->tk_status,
-			t->tk_client, t->tk_client->cl_prog,
+			t->tk_client,
+			(t->tk_client ? t->tk_client->cl_prog : 0),
 			t->tk_rqstp, t->tk_timeout,
 			rpc_qname(t->tk_rpcwait),
 			t->tk_action, t->tk_exit);