Date: Sun, 04 Nov 2012 01:39:47 +0100 From: Andre Oppermann <andre@freebsd.org> To: Fabian Keil <fk@fabiankeil.de> Cc: freebsd-net@FreeBSD.org Subject: Re: kern/173309: [tcp] TCP connections often prematurely closed by the server side after r242262 [regression] Message-ID: <5095B953.9060301@freebsd.org> In-Reply-To: <201211032251.qA3Mpnp6017076@freefall.freebsd.org> References: <201211032251.qA3Mpnp6017076@freefall.freebsd.org>
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Hello Fabian,
thank you for the bug report. Please try the attached patch
which should fix the issue you observed.
--
Andre
Index: tcp_input.c
===================================================================
--- tcp_input.c (revision 242494)
+++ tcp_input.c (working copy)
@@ -2650,10 +2652,12 @@
SOCKBUF_LOCK(&so->so_snd);
if (acked > so->so_snd.sb_cc) {
+ tp->snd_wnd -= so->so_snd.sb_cc;
sbdrop_locked(&so->so_snd, (int)so->so_snd.sb_cc);
ourfinisacked = 1;
} else {
sbdrop_locked(&so->so_snd, acked);
+ tp->snd_wnd -= acked;
ourfinisacked = 0;
}
/* NB: sowwakeup_locked() does an implicit unlock. */
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