From owner-freebsd-net@FreeBSD.ORG  Fri Apr 29 21:38:12 2005
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
Delivered-To: freebsd-net@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 2596916A4CE
	for <net@freebsd.org>; Fri, 29 Apr 2005 21:38:12 +0000 (GMT)
Received: from ford.blinkenlights.nl (ford.blinkenlights.nl [213.204.211.2])
	by mx1.FreeBSD.org (Postfix) with ESMTP id CD08343D31
	for <net@freebsd.org>; Fri, 29 Apr 2005 21:38:11 +0000 (GMT)
	(envelope-from sten@blinkenlights.nl)
Received: from tea.blinkenlights.nl (tea.blinkenlights.nl
	[IPv6:2001:960:301:3:a00:20ff:fe85:fa39])
	(using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits))
	(No client certificate requested)
	by ford.blinkenlights.nl (Postfix) with ESMTP id AE8E63F294;
	Fri, 29 Apr 2005 23:38:10 +0200 (CEST)
Received: by tea.blinkenlights.nl (Postfix, from userid 101)
	id 265F0362; Fri, 29 Apr 2005 21:43:15 +0200 (CEST)
Received: from localhost (localhost [127.0.0.1])
	by tea.blinkenlights.nl (Postfix) with ESMTP
	id 1372C352; Fri, 29 Apr 2005 21:43:15 +0200 (CEST)
Date: Fri, 29 Apr 2005 21:43:14 +0200 (CEST)
From: Sten Spans <sten@blinkenlights.nl>
To: Maksim Yevmenkin <maksim.yevmenkin@savvis.net>
In-Reply-To: <4272743A.2030003@savvis.net>
Message-ID: <Pine.SOC.4.61.0504292138070.22696@tea.blinkenlights.nl>
References: <20050428135120.GB21428@cell.sick.ru>
	<427111BF.2050607@savvis.net>
	<42712BAA.4070201@elischer.org> <42715269.3010306@errno.com>
	<4272743A.2030003@savvis.net>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
cc: Sam Leffler <sam@errno.com>
cc: Julian Elischer <julian@elischer.org>
cc: net@freebsd.org
Subject: Re: if_tap unaligned access problem
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.1
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: Fri, 29 Apr 2005 21:38:12 -0000

On Fri, 29 Apr 2005, Maksim Yevmenkin wrote:

> [...]
>
>> I could try to port the changes netbsd made using m_copyup and
>> send you the resulting patchfile. IPv4 has already been serviced by
>> John-Mark Gurney in perforce. 
>
> having these changes in the tree is a good thing, but it will require more 
> testing. maybe for now we could get away with simpler changes?

Well these changes should only be enabled for sparc & alpha,
which greatly limits the impact. We could even make it a
kernel option and default to off.

But I'll try playing with if_tap first though.

-- 
Sten Spans

"There is a crack in everything, that's how the light gets in."
Leonard Cohen - Anthem