From owner-freebsd-stable@FreeBSD.ORG Wed Nov 28 18:30:06 2007
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
by hub.freebsd.org (Postfix) with ESMTP id 5168616A477;
Wed, 28 Nov 2007 18:30:06 +0000 (UTC) (envelope-from w@wrzask.pl)
Received: from mx.oak.pl (mx.oak.pl [217.96.108.251])
by mx1.freebsd.org (Postfix) with ESMTP id F36FE13C45B;
Wed, 28 Nov 2007 18:30:03 +0000 (UTC) (envelope-from w@wrzask.pl)
Received: by oak.pl (Postfix, from userid 1002)
id 0B3721CD1E; Wed, 28 Nov 2007 19:30:02 +0100 (CET)
Date: Wed, 28 Nov 2007 19:30:01 +0100
From: Jan Srzednicki <w@wrzask.pl>
To: Julian Elischer <julian@elischer.org>
Message-ID: <20071128183001.GQ2045@oak.pl>
References: <20071127135320.GJ2045@oak.pl> <474DB1D0.3010100@elischer.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <474DB1D0.3010100@elischer.org>
User-Agent: Mutt/1.5.16 (2007-06-09)
Cc: freebsd-net@freebsd.org, freebsd-stable@freebsd.org
Subject: Re: connect() returns EADDRINUSE during massive host->host conn rate
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
<mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
<mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 28 Nov 2007 18:30:06 -0000
On Wed, Nov 28, 2007 at 10:22:08AM -0800, Julian Elischer wrote:
> Jan Srzednicki wrote:
>> Hello,
>> I have a pair of hosts. One of them performs a massive amount of
>> TCP connections to the other one, all to the same port. This setup
>> mostly works fine, but from time to time (that varies, from once a
>> minute to one a half an hour), the connect(2) syscall fails with
>> EADDRINUSE. The connection rate tops to 50 connection
>
> so, what does netstat -aAn show?
How can I get any usable information from netstat? It shows a bunch of
connections, of course, but since connect(2) failed, I have no idea what
local port I was trying to use.
And, what I forgot to mention, it's a SMP box, which could matter in
case of some race condition.
--
Jan Srzednicki :: http://wrzask.pl/
"Remember, remember, the fifth of November"
-- V for Vendetta