From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753208Ab2BUETM (ORCPT ); Mon, 20 Feb 2012 23:19:12 -0500 Received: from terminus.zytor.com ([198.137.202.10]:40200 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750905Ab2BUETL (ORCPT ); Mon, 20 Feb 2012 23:19:11 -0500 Message-ID: <4F431B1D.90704@zytor.com> Date: Mon, 20 Feb 2012 20:18:37 -0800 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20120131 Thunderbird/10.0 MIME-Version: 1.0 To: Ian Kent CC: Linus Torvalds , David Miller , thomas@m3y3r.de, linux-kernel@vger.kernel.org Subject: Re: Linux 3.3-rc4 References: <20120219.144947.660678318380307878.davem@davemloft.net> <1329794974.2226.11.camel@perseus.themaw.net> In-Reply-To: <1329794974.2226.11.camel@perseus.themaw.net> X-Enigmail-Version: 1.3.5 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 02/20/2012 07:29 PM, Ian Kent wrote: > > Fix this by adding a new protocol version 6 packet that is packed so that > it will have the same size on all archectures regardless of alignement. > You probably also want to make sure there aren't any holes in it, ever. Alignment holes not only cause these kinds of problems, but also cause security holes. -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.