Le vendredi 26 novembre 2010 à 15:41 +0800, Shan Wei a écrit :

Eric Dumazet wrote, at 11/25/2010 10:11 PM:

quoted

@@ -1845,6 +1871,7 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
 		unix_state_lock(sk);
 		skb = skb_dequeue(&sk->sk_receive_queue);
 		if (skb == NULL) {
+			unix_sk(sk)->recursion_level = 0;

For SOCK_SEQPACKET type, no need to clear recursion_level counter?
 

There is no need actually to clear it at all.

If an application has a complex setup with a dependence tree of unix
sockets, it will break if messages are not read fast enough.

So, maybe I should remove this line so that underlying problem comes
into surface immediately, rather than while in stress load.