From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263402AbTIWS6I (ORCPT ); Tue, 23 Sep 2003 14:58:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263399AbTIWS6I (ORCPT ); Tue, 23 Sep 2003 14:58:08 -0400 Received: from pizda.ninka.net ([216.101.162.242]:57307 "EHLO pizda.ninka.net") by vger.kernel.org with ESMTP id S263384AbTIWS6E (ORCPT ); Tue, 23 Sep 2003 14:58:04 -0400 Date: Tue, 23 Sep 2003 11:45:04 -0700 From: "David S. Miller" To: Benjamin LaHaise Cc: tony.luck@intel.com, davidm@hpl.hp.com, davidm@napali.hpl.hp.com, peter@chubb.wattle.id.au, ak@suse.de, iod00d@hp.com, peterc@gelato.unsw.edu.au, linux-ns83820@kvack.org, linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: NS83820 2.6.0-test5 driver seems unstable on IA64 Message-Id: <20030923114504.2d46054f.davem@redhat.com> In-Reply-To: <20030923142925.A16490@kvack.org> References: <20030923142925.A16490@kvack.org> X-Mailer: Sylpheed version 0.9.2 (GTK+ 1.2.6; sparc-unknown-linux-gnu) 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 Tue, 23 Sep 2003 14:29:25 -0400 Benjamin LaHaise wrote: > On Tue, Sep 23, 2003 at 11:21:35AM -0700, Luck, Tony wrote: > > Looking at a couple of ia64 build servers here I see zero unaligned > > access messages in the logs. > > ip options can still be an odd number of bytes. Having itanic spew bogus > log messages is just plain wrong (yet another hardware issue pushed off on > software for no significant gain). Also, some TCP implementations sometimes don't align the timestamp options in the headers as well. Also, as I mentioned, try IP over appletalk. Unaligned accesses are perfectly normal, _especially_ in the kernel. This is an axiom of the kernel networking decided a long time ago, and printing out a silly message when it happens doesn't make that any less true.