[Bug 223817] mbuf leaking with tcpmd5

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=223817

--- Comment #4 from Dirk Meyer <dinoex at FreeBSD.org> ---
The same command on FreeeBSD 10.3
shows data for tcpmd5.

uptime 2 days:

root at hbw2:~# netstat -sp tcp
tcp:
        404820 packets sent
                16566 data packets (809618 bytes)
                9 data packets (171 bytes) retransmitted
                0 data packets unnecessarily retransmitted
                0 resends initiated by MTU discovery
                381530 ack-only packets (351256 delayed)
                0 URG only packets
                0 window probe packets
                6703 window update packets
                12 control packets
        453693 packets received
                15429 acks (for 809625 bytes)
                6189 duplicate acks
                0 acks for unsent data
                420555 packets (130396892 bytes) received in-sequence
                42 completely duplicate packets (32133 bytes)
                0 old duplicate packets
                9 packets with some dup. data (9812 bytes duped)
                222 out-of-order packets (240797 bytes)
                0 packets (0 bytes) of data after window
                0 window probes
                25 window update packets
                0 packets received after close
                3 discarded for bad checksums
                0 discarded for bad header offset fields
                0 discarded because packet too short
                0 discarded due to memory problems
        8 connection requests
        5 connection accepts
        0 bad connection attempts
        0 listen queue overflows
        0 ignored RSTs in the windows
        11 connections established (including accepts)
        11 connections closed (including 0 drops)
                4 connections updated cached RTT on close
                4 connections updated cached RTT variance on close
                0 connections updated cached ssthresh on close
        0 embryonic connections dropped
        15426 segments updated rtt (of 15426 attempts)
        7 retransmit timeouts
                0 connections dropped by rexmit timeout
        0 persist timeouts
                0 connections dropped by persist timeout
        0 Connections (fin_wait_2) dropped because of timeout
        8 keepalive timeouts
                8 keepalive probes sent
                0 connections dropped by keepalive
        13389 correct ACK header predictions
        419108 correct data packet header predictions
        10 syncache entries added
                15 retransmitted
                0 dupsyn
                0 dropped
                5 completed
                0 bucket overflow
                0 cache overflow
                0 reset
                5 stale
                0 aborted
                0 badack
                0 unreach
                0 zone failures
        10 cookies sent
        0 cookies received
        3 hostcache entries added
                0 bucket overflow
        0 SACK recovery episodes
        0 segment rexmits in SACK recovery episodes
        0 byte rexmits in SACK recovery episodes
        0 SACK options (SACK blocks) received
        0 SACK options (SACK blocks) sent
        0 SACK scoreboard overflow
        0 packets with ECN CE bit set
        0 packets with ECN ECT(0) bit set
        0 packets with ECN ECT(1) bit set
        0 successful ECN handshakes
        0 times ECN reduced the congestion window
        252573 packets with valid tcp-md5 signature received
        2 packets with invalid tcp-md5 signature received
        0 packets with tcp-md5 signature mismatch
        0 packets with unexpected tcp-md5 signature received
        2 packets without expected tcp-md5 signature received

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