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 07:11:40 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 5 Feb 2003 07:11:40 -0500 Received: from nat-pool-rdu.redhat.com ([66.187.233.200]:39759 "EHLO devserv.devel.redhat.com") by vger.kernel.org with ESMTP id ; Wed, 5 Feb 2003 07:11:36 -0500 From: Alan Cox Message-Id: <200302051221.h15CL7i02421@devserv.devel.redhat.com> Subject: Re: 2.4.21-pre4: PDC ide driver problems with shared interrupts To: skraw@ithnet.com (Stephan von Krawczynski) Date: Wed, 5 Feb 2003 07:21:07 -0500 (EST) Cc: benh@kernel.crashing.org (Benjamin Herrenschmidt), alan@redhat.com, linux-kernel@vger.kernel.org In-Reply-To: <20030205123951.54207275.skraw@ithnet.com> from "Stephan von Krawczynski" at Feb 05, 2003 12:39:51 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 > > a problem a user reported me as well. It's interesting because it's > > apparently running UP, so it's not the SMP race found by Ross. It's > > definitely a problem with shared interrupt though. The race Ross found can bite you on a uniprocessor box as well I think. It just needs the irq to hit in the right spot. The more interesting question is how the current -ac behaves under the same treatment