D19047.id.diff
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D19047.id.diff
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	Index: sys/netinet/tcp_output.c
	===================================================================
	--- sys/netinet/tcp_output.c
	+++ sys/netinet/tcp_output.c
	@@ -210,7 +210,7 @@
	struct tcpopt to;
	unsigned int wanted_cookie = 0;
	unsigned int dont_sendalot = 0;
	-#if 0
	+#if 1
	int maxburst = TCP_MAXBURST;
	#endif
	#ifdef INET6
	@@ -255,6 +255,14 @@
	idle = 0;
	}
	}
	+ /*
	+ * Compute a reasonable burst limit
	+ */
	+ maxburst = tp->snd_cwnd -
	+ (abs((tp->snd_max - tp->snd_una) - (tp->snd_cwnd>>1)) /
	+ (tp->snd_cwnd>>1)) * (tp->snd_cwnd>>1);
	+ maxburst = max(maxburst, tcp_compute_initwnd(tp->t_maxseg)) /
	+ tp->t_maxseg;
	again:
	/*
	* If we've recently taken a timeout, snd_max will be greater than
	@@ -1599,7 +1607,7 @@
	tp->t_flags &= ~(TF_ACKNOW \| TF_DELACK);
	if (tcp_timer_active(tp, TT_DELACK))
	tcp_timer_activate(tp, TT_DELACK, 0);
	-#if 0
	+#if 1
	/*
	* This completely breaks TCP if newreno is turned on. What happens
	* is that if delayed-acks are turned on on the receiver, this code
	@@ -1608,9 +1616,10 @@
	*/
	if (sendalot && --maxburst)
	goto again;
	-#endif
	+#else
	if (sendalot)
	goto again;
	+#endif
	return (0);
	}