From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 5 Feb 2003 07:41:02 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 5 Feb 2003 07:41:02 -0500 Received: from nat-pool-rdu.redhat.com ([66.187.233.200]:7519 "EHLO devserv.devel.redhat.com") by vger.kernel.org with ESMTP id ; Wed, 5 Feb 2003 07:41:02 -0500 From: Alan Cox Message-Id: <200302051250.h15CoYL08406@devserv.devel.redhat.com> Subject: Re: 2.4.21-pre4: PDC ide driver problems with shared interrupts To: benh@kernel.crashing.org (Benjamin Herrenschmidt) Date: Wed, 5 Feb 2003 07:50:34 -0500 (EST) Cc: skraw@ithnet.com (Stephan von Krawczynski), alan@redhat.com, linux-kernel@vger.kernel.org In-Reply-To: <1044447738.685.113.camel@zion.wanadoo.fr> from "Benjamin Herrenschmidt" at Feb 05, 2003 01:22:19 PM X-Mailer: ELM [version 2.5 PL6] 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 > > dual-mb the kernel is already compiled for SMP. It is started with "nosmp" > > option though. I wanted to mention this not knowing if it is important for the > > codepath. > > Shouldn be an issue. I suppose you don't use fancy stuff like preempt or > IDE taskfile IO, right ? IDE taskfile I/O is disabled. Pre-empt and 2.4 IDE don't work together at all yet, and probably never will (see the /proc code for why its basically unfixable in 2.4)