Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756300AbZALT03 (ORCPT ); Mon, 12 Jan 2009 14:26:29 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753509AbZALT0T (ORCPT ); Mon, 12 Jan 2009 14:26:19 -0500 Received: from mx2.redhat.com ([66.187.237.31]:42772 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751300AbZALT0S (ORCPT ); Mon, 12 Jan 2009 14:26:18 -0500 Subject: Re: PCI, ACPI, IRQ, IOAPIC: reroute PCI interrupt to legacy boot interrupt equivalent From: Jon Masters To: Bjorn Helgaas Cc: Stefan Assmann , Len Brown , Ingo Molnar , Jesse Barnes , Olaf Dabrunz , Thomas Gleixner , Steven Rostedt , Linux Kernel Mailing List , linux-acpi@vger.kernel.org, Sven Dietrich , "Eric W. Biederman" , "Maciej W. Rozycki" In-Reply-To: <200901121151.53195.bjorn.helgaas@hp.com> References: <496B24E5.1070804@suse.de> <200901121151.53195.bjorn.helgaas@hp.com> Content-Type: text/plain Organization: Red Hat, Inc. Date: Mon, 12 Jan 2009 14:25:49 -0500 Message-Id: <1231788349.4094.21.camel@perihelion.bos.jonmasters.org> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1131 Lines: 24 On Mon, 2009-01-12 at 11:51 -0700, Bjorn Helgaas wrote: > (I added Eric, Maciej, and Jon because they participated in > previous discussion here: http://lkml.org/lkml/2008/6/2/269) Thanks. You know what I'd really like even more than being on the CC? I'd *love* someone to post a link to documentation on how this actually is supposed to work. We had to guess last time because none of the public documentation actually explains this. The guys at SuSE likely received some docs, but I'm not sure where from or the title thereof. If we all knew how this was supposed to work then we might have a much better likelihood of fixing this behavior. It's only going to get worse over time - we want to get threaded IRQs upstream (I'm about to be poking at that again over here) and that'll mean mainline has to learn to deal with these boot interrupts just as much as RT does today. Jon. -- 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/