diff options
| author | Richard Scheffenegger <rscheff@FreeBSD.org> | 2021-04-28 12:56:14 +0000 |
|---|---|---|
| committer | Richard Scheffenegger <rscheff@FreeBSD.org> | 2021-05-01 08:26:53 +0000 |
| commit | bb9dcbf1a243ac92855c0109fd922c2ba60eb691 (patch) | |
| tree | 14c40131ae6fb12aedc788024ccf5195a36c40e8 /sys/netinet/tcp_sack.c | |
| parent | fb34817c686cc130449325499870e36979899801 (diff) | |
tcp: stop spurious rescue retransmissions and potential asserts
Reported by: pho@
MFC after: 3 days
Reviewed By: tuexen, #transport
Sponsored by: NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D29970
(cherry picked from commit 48be5b976e34022862da3be69350d60e969d39e5)
Diffstat (limited to 'sys/netinet/tcp_sack.c')
| -rw-r--r-- | sys/netinet/tcp_sack.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/netinet/tcp_sack.c b/sys/netinet/tcp_sack.c index 40d63bd3832f..9187a9fc66d8 100644 --- a/sys/netinet/tcp_sack.c +++ b/sys/netinet/tcp_sack.c @@ -866,9 +866,11 @@ tcp_sack_partialack(struct tcpcb *tp, struct tcphdr *th) tcp_seq highdata = tp->snd_max; if (tp->t_flags & TF_SENTFIN) highdata--; - if (th->th_ack != highdata) + if (th->th_ack != highdata) { + tp->snd_fack = th->th_ack; (void)tcp_sackhole_insert(tp, SEQ_MAX(th->th_ack, highdata - maxseg), highdata, NULL); + } } (void) tp->t_fb->tfb_tcp_output(tp); } |