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From: Mikolaj Golub <trociny@freebsd.org>
To: freebsd-net@freebsd.org
Sender: Mikolaj Golub <to.my.trociny@gmail.com>
Date: Mon, 13 Jun 2011 17:58:41 +0300
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Cc: Pawel Jakub Dawidek <pjd@FreeBSD.org>
Subject: Automatic receive buffer sizing works only for connections in
	ESTABLISHED state
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Hi,

Automatic receive buffer sizing works only for connections in ESTABLISHED
state. In tcp_input() auto resizing code is under "if (tp->t_state ==
TCPS_ESTABLISHED && ...)" branch.

This is unfortunate for HAST, which uses one direction connections and
shutdown another direction, so the receiving socket is in FIN_WAIT_2 and auto
resizing does not work here.

Is there some reason why it should be only for connections in ESTABLISHED
state or this should be considered as a bug?

-- 
Mikolaj Golub