From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267336AbUHEECu (ORCPT ); Thu, 5 Aug 2004 00:02:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267344AbUHEECu (ORCPT ); Thu, 5 Aug 2004 00:02:50 -0400 Received: from mx1.redhat.com ([66.187.233.31]:24029 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S267336AbUHEECM convert rfc822-to-8bit (ORCPT ); Thu, 5 Aug 2004 00:02:12 -0400 Date: Wed, 4 Aug 2004 20:58:37 -0700 From: "David S. Miller" To: yoshfuji@linux-ipv6.org Cc: ak@muc.de, jgarzik@pobox.com, axboe@suse.de, linux-kernel@vger.kernel.org, yoshfuji@linux-ipv6.org Subject: Re: block layer sg, bsg Message-Id: <20040804205837.6fda9a50.davem@redhat.com> In-Reply-To: <20040804.165113.06226042.yoshfuji@linux-ipv6.org> References: <20040804191850.GA19224@havoc.gtf.org> <20040804122254.3d52c2d4.davem@redhat.com> <20040804232116.GA30152@muc.de> <20040804.165113.06226042.yoshfuji@linux-ipv6.org> X-Mailer: Sylpheed version 0.9.12 (GTK+ 1.2.10; sparc-unknown-linux-gnu) X-Face: "_;p5u5aPsO,_Vsx"^v-pEq09'CU4&Dc1$fQExov$62l60cgCc%FnIwD=.UF^a>?5'9Kn[;433QFVV9M..2eN.@4ZWPGbdi<=?[:T>y?SD(R*-3It"Vj:)"dP 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 On Wed, 04 Aug 2004 16:51:13 -0700 (PDT) YOSHIFUJI Hideaki / 吉藤英明 wrote: > > Well, 32bit ipsec on x86-64/ia64 is a NOP because of that. > > Hmm, I don't get the point. > What part (or which structore) is broken? On x86-64 and ia64 they have a large issue because the ia32 emulation layer has to handle the fact that "long long" types do not require 8-byte alignment, whereas 64-bit natively they do. So all things going over netlink that use u64 or similar have potential structure layout issues due to this difference.