From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263795AbUILXRj (ORCPT ); Sun, 12 Sep 2004 19:17:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263851AbUILXRi (ORCPT ); Sun, 12 Sep 2004 19:17:38 -0400 Received: from smtp-101-monday.nerim.net ([62.4.16.101]:5134 "EHLO kraid.nerim.net") by vger.kernel.org with ESMTP id S263795AbUILXRf (ORCPT ); Sun, 12 Sep 2004 19:17:35 -0400 Date: Mon, 13 Sep 2004 01:17:31 +0200 From: =?iso-8859-1?B?QXVy6WxpZW4gR8lS1E1F?= To: linux-kernel@vger.kernel.org Subject: Re: iMac G3 IPv6 issue Message-ID: <20040912231730.GC11293@caladan.roxor.be> Reply-To: =?iso-8859-1?B?QXVy6WxpZW4gR8lS1E1F?= Mail-Followup-To: linux-kernel@vger.kernel.org References: <20040912133936.GA11099@caladan.roxor.be> <1095011851.4995.54.camel@localhost.localdomain> <20040912155850.0e8fd0b5.davem@davemloft.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="48TaNjbzBVislYPb" Content-Disposition: inline In-Reply-To: <20040912155850.0e8fd0b5.davem@davemloft.net> User-Agent: Mutt/1.5.6+20040818i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --48TaNjbzBVislYPb Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Sep 12, 2004 at 03:58:50PM -0700, David S. Miller wrote: > On Sun, 12 Sep 2004 18:57:31 +0100 > David Woodhouse wrote: >=20 > > On Sun, 2004-09-12 at 15:39 +0200, Aur=C3=A9lien G=C3=89R=C3=94ME wrote: > > > I put IPv6 support, but the console is flooded by a lot of: > > > hw tcp v6 csum failed > > > However, IPv6 works, and IPv4 packets do not have this kind of issue. > > > The network card is a Sun Gem. It is kind of weird to see bad packets. > >=20 > > I use the sungem in a similar machine with IPv6, and haven't seen any > > problems. Can you tcpdump from a different machine on the network and > > confirm whether these reported bad checksums really are happening or if > > it's the fault of the hardware/driver? >=20 > One thing that's interesting is that the sungem and sunhme > drivers are the only two in the whole tree that support > IPV6 checksum offload. Like David, I have never seen this > problem on Sparc systems using the GEM chip and this > driver. The board is this: 0002:02:0f.0 Ethernet controller: Apple Computer Inc. UniNorth GMAC (Sun GEM) So, it is Apple stuff wrapping a Sun GEM chip. The issue may come from that. Anyway, I am going to dig in the source code to find out. Cheers. --=20 _,met$$$$$gg. Aur=E9lien G=C9R=D4ME ,g$$$$$$$$$$$$$$$P. Free Software Developer ,g$$P"" """Y$$.". Unix Sys & Net Admin ,$$P' `$$$. ',$$P ,ggs. `$$b: Web: https://www.roxor.be/ `d$$' ,$P"' . $$$ Mail: ag@roxor.be $$P d$' , $$P GPG Key ID: 03E1A172 $$: $$. - ,d$$' $$; Y$b._ _,d$P' )) GNU (( / Linux Y$$. `.`"Y$$$$P"' // \\ `$$b "-.__ ((__,-"""-,__)) .---. `Y$$b `--)~ ~(--` / \ `Y$$. Debian .-'( )`-. \.@-@./ `$$b. `~~`@) (@`~~` /`\_/`\ `Y$$b. | | // _ \\ `"Y$b._ | | | \ )|_ `"""" (8___8) /`\_`> <_/ \ `---` \__/'---'\__/ BOFH excuse #113: Root nameservers are out of sync --48TaNjbzBVislYPb Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (GNU/Linux) iD8DBQFBRNkKkFH2kwPhoXIRAtdjAJ0eh18GCmoBIgUo6waywgLGaONNiACeJGjd 3RJD96VRnbJKTbmyphdBUIg= =NpKE -----END PGP SIGNATURE----- --48TaNjbzBVislYPb--