From owner-freebsd-stable@FreeBSD.ORG Thu May 14 08:54:26 2009 Return-Path: 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 F24E4106566B for ; Thu, 14 May 2009 08:54:25 +0000 (UTC) (envelope-from lars.eggert@nokia.com) Received: from mail.fit.nokia.com (mail.fit.nokia.com [195.148.124.195]) by mx1.freebsd.org (Postfix) with ESMTP id 7C9608FC20 for ; Thu, 14 May 2009 08:54:25 +0000 (UTC) (envelope-from lars.eggert@nokia.com) Received: from [192.168.0.199] (wlan.fit.nokia.com [195.148.124.254]) (authenticated bits=0) by mail.fit.nokia.com (8.14.3/8.14.3) with ESMTP id n4E8qqlc015735 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NOT); Thu, 14 May 2009 11:52:52 +0300 (EEST) (envelope-from lars.eggert@nokia.com) Message-Id: <40A50D3F-B9DB-41BD-BE2C-92575C0069DD@nokia.com> From: Lars Eggert To: "lev@FreeBSD.org" In-Reply-To: <1842780877.20090514124631@serebryakov.spb.ru> Content-Type: multipart/signed; boundary=Apple-Mail-10--156521407; micalg=sha1; protocol="application/pkcs7-signature" Mime-Version: 1.0 (Apple Message framework v935.3) Date: Thu, 14 May 2009 11:52:47 +0300 References: <4A09DEF1.2010202@delphij.net> <4A09FDB2.5080307@eyede.com> <20090513004131.GP65350@michelle.cdnetworks.co.kr> <20090514082750.GU65350@michelle.cdnetworks.co.kr> <310A73CC-A32D-4794-BF23-A49715AFCF99@nokia.com> <1842780877.20090514124631@serebryakov.spb.ru> X-Mailer: Apple Mail (2.935.3) X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.2.2 (mail.fit.nokia.com [195.148.124.194]); Thu, 14 May 2009 11:52:52 +0300 (EEST) X-Spam-Status: No, score=-102.6 required=5.0 tests=BAYES_00, USER_IN_WHITELIST autolearn=ham version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on fit.nokia.com X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: "pyunyh@gmail.com" , "freebsd-stable@freebsd.org" , "d@delphij.net" , "nigel@eyede.com" Subject: Re: Re[2]: TCP differences in 7.2 vs 7.1 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 May 2009 08:54:26 -0000 --Apple-Mail-10--156521407 Content-Type: text/plain; charset=KOI8-R; format=flowed; delsp=yes Content-Transfer-Encoding: quoted-printable In my case, it's a em4@pci0:12:0:0: class=3D0x020000 card=3D0x135e8086 = chip=3D0x105e8086 =20 rev=3D0x06 hdr=3D0x00 vendor =3D 'Intel Corporation' device =3D 'PRO/1000 PT' class =3D network subclass =3D ethernet Lars On 2009-5-14, at 11:46, Lev Serebryakov wrote: > Hello, Lars. > You wrote 14 =CD=C1=D1 2009 =C7., 12:28:43: > >> Reproducing the issue is as easy as setting net.inet.tcp.tso=3D1. >> What's interesting is that I only see the issue on one of the eight =20= >> em >> interfaces. That interface is connected to a D-Link DIR-655 WLAN >> router. When I tcpdump on the other interfaces with TSO enabled, I =20= >> see >> no "IP bad-len 0" messages. > I have same problem (every one of 100-200 frames) on on-board if_em: > > em0@pci0:0:25:0: class=3D0x020000 card=3D0x82681043 =20 > chip=3D0x10bd8086 rev=3D0x02 hdr=3D0x00 > vendor =3D 'Intel Corporation' > device =3D '82566DM-2 Gigabit Network Connection' > class =3D network > subclass =3D ethernet > > > > --=20 > // Black Lion AKA Lev Serebryakov > --Apple-Mail-10--156521407--