Hi, Could you please tell us what version you are running?
> > If the tcp_output just have some error, for example: when alloc mbuf, > it returns NULL, and then the snd_nxt number will not be return to > normal. > If just in this time, SYN Ack arrives, freeBSD can't handle this > situdition. > I have seen a related issue in older versions that I fixed, but it's from the SYN+ACK perspective. If my memory serves me right, local listener receives a SYN packet, transmits the SYN+ACK, but memory allocation fails, so the SYN+ACK packet was never transmitted onto the wire, however, the SEQ advanced by 1. As a result of SEQ update, the retransmitted SYN packet from the other end were discard as duplicates, eventually the connection times out. -- Qing _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
