From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262254AbTFOPON (ORCPT ); Sun, 15 Jun 2003 11:14:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262261AbTFOPON (ORCPT ); Sun, 15 Jun 2003 11:14:13 -0400 Received: from pizda.ninka.net ([216.101.162.242]:45766 "EHLO pizda.ninka.net") by vger.kernel.org with ESMTP id S262254AbTFOPOM (ORCPT ); Sun, 15 Jun 2003 11:14:12 -0400 Date: Sun, 15 Jun 2003 08:23:55 -0700 (PDT) Message-Id: <20030615.082355.08334189.davem@redhat.com> To: James.Bottomley@SteelEye.com Cc: acme@conectiva.com.br, linux-kernel@vger.kernel.org Subject: Re: New struct sock_common breaks parisc 64 bit compiles with a misalignment From: "David S. Miller" In-Reply-To: <1055690231.10803.54.camel@mulgrave> References: <1055687753.10803.28.camel@mulgrave> <20030615.073503.112613460.davem@redhat.com> <1055690231.10803.54.camel@mulgrave> X-FalunGong: Information control. X-Mailer: Mew version 2.1 on Emacs 21.1 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org From: James Bottomley Date: 15 Jun 2003 10:17:10 -0500 It's not necessary and would, indeed, be detrimental to operation since we'd generate alignment traps on almost every encapsulated protocol (at several hundred instructions per trap). If we do this, our network performance will tank. It doesn't happen for all the normal cases, but it does for things like IP in appletalk and stuff like that. Please, implement the trap handlers. Thanks.