Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263063AbTIWW6o (ORCPT ); Tue, 23 Sep 2003 18:58:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262241AbTIWW6o (ORCPT ); Tue, 23 Sep 2003 18:58:44 -0400 Received: from fmr09.intel.com ([192.52.57.35]:49873 "EHLO hermes.hd.intel.com") by vger.kernel.org with ESMTP id S262205AbTIWW6k convert rfc822-to-8bit (ORCPT ); Tue, 23 Sep 2003 18:58:40 -0400 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT X-MimeOLE: Produced By Microsoft Exchange V6.0.6487.1 Subject: RE: NS83820 2.6.0-test5 driver seems unstable on IA64 Date: Tue, 23 Sep 2003 15:58:29 -0700 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: NS83820 2.6.0-test5 driver seems unstable on IA64 Thread-Index: AcOCFhnm1mbxS1MzS1qGXHncNbapLgAD2fHA From: "Luck, Tony" To: "Alan Cox" Cc: "David S. Miller" , , , , , , , , , , "Linux Kernel Mailing List" X-OriginalArrivalTime: 23 Sep 2003 22:58:30.0241 (UTC) FILETIME=[34C83510:01C38226] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 970 Lines: 26 Alan Cox wrote: > On Maw, 2003-09-23 at 19:21, Luck, Tony wrote: > > a) the programmer is playing fast and loose with types and/or casts. > > b) the end-user is going to be disappointed with the performance. > > c) the programmer is being clever and knows the unaligned access is > cheaper on average than the cost of making sure it cant happen Which is great until the "cleverly written" program is fed a data set that pushes into the unaligned case far more frequently than the programmer anticipated. > > Looking at a couple of ia64 build servers here I see zero unaligned > > access messages in the logs. > > Anyone who can deliver network traffic to your box can soon > fix that... See answer above :-) -Tony Luck - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/