From owner-freebsd-current@FreeBSD.ORG  Thu Sep 23 22:20:39 2004
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 0A46416A4CE
	for <freebsd-current@freebsd.org>;
	Thu, 23 Sep 2004 22:20:39 +0000 (GMT)
Received: from mail.mcneil.com (mcneil.com [24.199.45.54])
	by mx1.FreeBSD.org (Postfix) with ESMTP id D7F9D43D3F
	for <freebsd-current@freebsd.org>;
	Thu, 23 Sep 2004 22:20:38 +0000 (GMT)	(envelope-from sean@mcneil.com)
Received: from localhost (localhost.mcneil.com [127.0.0.1])
	by mail.mcneil.com (Postfix) with ESMTP id 91FBDF19E8
	for <freebsd-current@freebsd.org>;
	Thu, 23 Sep 2004 15:20:36 -0700 (PDT)
Received: from mail.mcneil.com ([127.0.0.1])
 by localhost (server.mcneil.com [127.0.0.1]) (amavisd-new, port 10024)
 with ESMTP id 46602-02 for <freebsd-current@freebsd.org>;
 Thu, 23 Sep 2004 15:20:35 -0700 (PDT)
Received: from [24.199.45.54] (mcneil.com [24.199.45.54])
	by mail.mcneil.com (Postfix) with ESMTP id B2988F198F
	for <freebsd-current@freebsd.org>;
	Thu, 23 Sep 2004 15:20:35 -0700 (PDT)
From: Sean McNeil <sean@mcneil.com>
To: freebsd-current@freebsd.org
Content-Type: text/plain
Message-Id: <1095978035.59583.4.camel@server.mcneil.com>
Mime-Version: 1.0
X-Mailer: Ximian Evolution 1.4.6 
Date: Thu, 23 Sep 2004 15:20:35 -0700
Content-Transfer-Encoding: 7bit
X-Virus-Scanned: by amavisd-new at mcneil.com
Subject: re0 device txcsum issue
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 23 Sep 2004 22:20:39 -0000

Is anyone willing to work with me to help trace down this problem?  It
has been outstanding for a long time and I would dearly like it fixed. 
I'm willing to help in any capacity to trace down the culprit.

To recap, on the re0 device (possibly others) running -current on an
amd64 processor there are times when udp packets get improper checksum
calculations with txcsum set for the interface.  This causes a deadlock
in nfs as the client just contunuously requests this packet and it is
rejected because of the checksum being bad.

Sean