From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] tcp: fix an infinite loop in tcp_slow_start()
Date: Sun, 03 Feb 2013 16:01:04 -0500 (EST)
Message-ID: <20130203.160104.248557521548380645.davem@davemloft.net>
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Cc: pasik@iki.fi, hannes@stressinduktion.org,
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=46rom: Eric Dumazet <eric.dumazet@gmail.com>
Date: Sat, 02 Feb 2013 07:23:16 -0800

> From: Eric Dumazet <edumazet@google.com>
>=20
> Since commit 9dc274151a548 (tcp: fix ABC in tcp_slow_start()),
> a nul snd_cwnd triggers an infinite loop in tcp_slow_start()
>=20
> Avoid this infinite loop and log a one time error for further
> analysis. FRTO code is suspected to cause this bug.
>=20
> Reported-by: Pasi K=E4rkk=E4inen <pasik@iki.fi>
> Signed-off-by: Eric Dumazet <edumazet@google.com>

Applied.