From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261321AbTIXDCk (ORCPT ); Tue, 23 Sep 2003 23:02:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261314AbTIXDCk (ORCPT ); Tue, 23 Sep 2003 23:02:40 -0400 Received: from palrel12.hp.com ([156.153.255.237]:39850 "EHLO palrel12.hp.com") by vger.kernel.org with ESMTP id S261299AbTIXDCh (ORCPT ); Tue, 23 Sep 2003 23:02:37 -0400 From: David Mosberger MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <16240.35153.564994.931355@napali.hpl.hp.com> Date: Tue, 23 Sep 2003 10:56:33 -0700 To: "David S. Miller" Cc: davidm@hpl.hp.com, davidm@napali.hpl.hp.com, peter@chubb.wattle.id.au, bcrl@kvack.org, 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 In-Reply-To: <20030923102735.42a59d57.davem@redhat.com> References: <16234.33565.64383.838490@wombat.disy.cse.unsw.edu.au> <20030919043847.GA2996@cup.hp.com> <20030919044315.GC7666@wotan.suse.de> <16234.36238.848366.753588@wombat.chubb.wattle.id.au> <20030919055304.GE16928@wotan.suse.de> <20030919064922.B3783@kvack.org> <16239.38154.969505.748461@wombat.chubb.wattle.id.au> <20030922203629.B21836@kvack.org> <20030922232237.28a5ac4a.davem@redhat.com> <16240.8965.91289.460763@wombat.chubb.wattle.id.au> <20030923035118.578203d5.davem@redhat.com> <16240.24511.375148.520203@napali.hpl.hp.com> <20030923102735.42a59d57.davem@redhat.com> X-Mailer: VM 7.07 under Emacs 21.2.1 Reply-To: davidm@hpl.hp.com X-URL: http://www.hpl.hp.com/personal/David_Mosberger/ Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org >>>>> On Tue, 23 Sep 2003 10:27:35 -0700, "David S. Miller" said: DaveM> On Tue, 23 Sep 2003 07:59:11 -0700 DaveM> David Mosberger wrote: >> The printk() is rate-controlled and doesn't happen for every unaligned >> access. It's average cost can be made as low as we want to, by adjusting >> the rate. DaveM> But if the event is normal, you shouldn't be logging it as if DaveM> it weren't. An event that causes a slow-down of 500 times or so is not "normal". On Alpha, we did have just a counter. Guess what, nobody ever noticed when things ran much slower than they should have. DaveM> Anyone who tries to use IP over appletalk or certain protocols DaveM> over PPP are going to see your silly messages. DaveM> As I understand it, you even do this stupid printk for user apps DaveM> as well, that makes it more than rediculious. I'd be surprised DaveM> if anyone can find any useful kernel messages on an ia64 system DaveM> in the dmesg output with all the unaligned access crap there. Ever heard of prctl --unalign=silent? I don't normaly do that and I still get very few unaligned warning messages. --david