From owner-freebsd-net@FreeBSD.ORG  Sat Mar 22 21:50:07 2008
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
Delivered-To: freebsd-net@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id C69A61065670
	for <freebsd-net@freebsd.org>; Sat, 22 Mar 2008 21:50:07 +0000 (UTC)
	(envelope-from citrin@citrin.ru)
Received: from mail-chaos.rambler.ru (mail-chaos.rambler.ru [81.19.68.130])
	by mx1.freebsd.org (Postfix) with ESMTP id 8D4588FC26
	for <freebsd-net@freebsd.org>; Sat, 22 Mar 2008 21:50:07 +0000 (UTC)
	(envelope-from citrin@citrin.ru)
Received: from [192.168.1.34] (unknown [83.167.116.128])
	(using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits))
	(No client certificate requested)
	(Authenticated sender: citrin@citrin.ru)
	by mail-chaos.rambler.ru (Postfix) with ESMTPSA id 86F231704A
	for <freebsd-net@freebsd.org>; Sun, 23 Mar 2008 00:39:35 +0300 (MSK)
Message-ID: <47E57C8F.4090602@citrin.ru>
Date: Sun, 23 Mar 2008 00:39:27 +0300
From: Anton Yuzhaninov <citrin@citrin.ru>
User-Agent: Thunderbird 2.0.0.12 (Windows/20080213)
MIME-Version: 1.0
To: freebsd-net@freebsd.org
Content-Type: text/plain; charset=windows-1251; format=flowed
Content-Transfer-Encoding: 7bit
Subject: re TSO: data corruption
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 22 Mar 2008 21:50:07 -0000

When TSO enabled on my re NIC, data transferred via network corrupted.

It easy to reproduce using scp:

citrin:~>scp some_file.tar.bz2 some_host: 

..
Received disconnect from 10.10.10.100: 2: Corrupted MAC on input.
lost connection

And same when data transferred to any other host.

re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
         options=399b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL_UCAST,WOL_MCAST,WOL_MAGIC>
         ether 00:1a:4d:2d:82:6e
         inet 10.10.10.101 netmask 0xfffffe00 broadcast 10.10.10.255
         media: Ethernet autoselect (100baseTX <full-duplex>)
         status: active

re0@pci0:2:5:0: class=0x020000 card=0xe0001458 chip=0x816710ec rev=0x10 hdr=0x00
     vendor     = 'Realtek Semiconductor'
     device     = 'RTL8169/8110 Family Gigabit Ethernet NIC'
     class      = network
     subclass   = ethernet

Known workaround:
ifconfig re0 -tso

May be TSO should be disabled by default?

System is fresh:
FreeBSD 8.0-CURRENT #7: Sat Mar 22 20:59:10 MSK 2008
amd64

-- 
WBR,
  Anton Yuzhaninov