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Index: FreeBSD/sys/netinet/tcp_stacks/bbr.c
===================================================================
--- FreeBSD/sys/netinet/tcp_stacks/bbr.c
+++ FreeBSD/sys/netinet/tcp_stacks/bbr.c
@@ -12323,7 +12323,8 @@
(tp->t_state == TCPS_SYN_SENT)) &&
SEQ_GT(tp->snd_max, tp->snd_una) && /* initial SYN or SYN|ACK sent */
(tp->t_rxtshift == 0)) { /* not a retransmit */
- return (0);
+ len = 0;
+ goto just_return_nolock;
}
/*
* Before sending anything check for a state update. For hpts
Index: FreeBSD/sys/netinet/tcp_stacks/rack.c
===================================================================
--- FreeBSD/sys/netinet/tcp_stacks/rack.c
+++ FreeBSD/sys/netinet/tcp_stacks/rack.c
@@ -12117,8 +12117,10 @@
((tp->t_state == TCPS_SYN_RECEIVED) ||
(tp->t_state == TCPS_SYN_SENT)) &&
SEQ_GT(tp->snd_max, tp->snd_una) && /* initial SYN or SYN|ACK sent */
- (tp->t_rxtshift == 0)) /* not a retransmit */
- return (0);
+ (tp->t_rxtshift == 0)) { /* not a retransmit */
+ cwnd_to_use = rack->r_ctl.cwnd_to_use = tp->snd_cwnd;
+ goto just_return_nolock;
+ }
/*
* Determine length of data that should be transmitted, and flags
* that will be used. If there is some data or critical controls

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