Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750763AbWEQXsi (ORCPT ); Wed, 17 May 2006 19:48:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750741AbWEQXsi (ORCPT ); Wed, 17 May 2006 19:48:38 -0400 Received: from srv5.dvmed.net ([207.36.208.214]:21198 "EHLO mail.dvmed.net") by vger.kernel.org with ESMTP id S1750740AbWEQXsh (ORCPT ); Wed, 17 May 2006 19:48:37 -0400 Message-ID: <446BB64E.1060509@garzik.org> Date: Wed, 17 May 2006 19:48:30 -0400 From: Jeff Garzik User-Agent: Thunderbird 1.5.0.2 (X11/20060501) MIME-Version: 1.0 To: Linus Torvalds CC: OGAWA Hirofumi , Avuton Olrich , linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, akpm@osdl.org Subject: Re: [RFT] major libata update References: <20060515170006.GA29555@havoc.gtf.org> <3aa654a40605151630j53822ba1nbb1a2e3847a78025@mail.gmail.com> <446914C7.1030702@garzik.org> <3aa654a40605152036h40fa1cd0x8edd81431c1bd22d@mail.gmail.com> <44694C4F.3000008@garzik.org> <3aa654a40605152133x516581f9w62c7cb7709864fb0@mail.gmail.com> <87ves44qrs.fsf@duaron.myhome.or.jp> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -4.1 (----) X-Spam-Report: SpamAssassin version 3.1.1 on srv5.dvmed.net summary: Content analysis details: (-4.1 points, 5.0 required) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1049 Lines: 26 Linus Torvalds wrote: > In particular, I have this pretty strong memory that we tried to do > something like this a long time ago, and it caused problems at least > with the legacy ISA/ATA interrupts (irq 14/15). > > On the other hand, my memory is pretty damn bad at times, and besides, I > hope that that "hardcoded" case just above it is the one that takes care > of the old ATA interrupts. This is one of those times when the only > guaranteed right thing to do would be to be bug-for-bug compatible with > whatever crud MS-Win does.. Many BIOS ACPI tables from years ago simply _assumed_ that you have hardcoded irq 14/15, even... Their irq descriptors for 14/15 would be absent or completely non-functional. Or maybe its the $pirq table I'm recalling. One of the two, anyway. Jeff - 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/