Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753377AbXJWKP1 (ORCPT ); Tue, 23 Oct 2007 06:15:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751750AbXJWKPP (ORCPT ); Tue, 23 Oct 2007 06:15:15 -0400 Received: from srv5.dvmed.net ([207.36.208.214]:50810 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751148AbXJWKPN (ORCPT ); Tue, 23 Oct 2007 06:15:13 -0400 Message-ID: <471DC9A7.3080105@garzik.org> Date: Tue, 23 Oct 2007 06:15:03 -0400 From: Jeff Garzik User-Agent: Thunderbird 2.0.0.5 (X11/20070727) MIME-Version: 1.0 To: Daniel Barkalow CC: Linas Vepstas , Shane Huang , davem@davemloft.net, gregkh@suse.de, htejun@gmail.com, brice.goglin@gmail.com, david.gaarenstroom@gmail.com, linux-kernel@vger.kernel.org, linux-pci@atrey.karlin.mff.cuni.cz, shane.huang@amd.com, linux-ide@vger.kernel.org, Brice Goglin Subject: Re: [patch] PCI: disable MSI on more ATI NorthBridges References: <20071019195749.GK29903@austin.ibm.com> <471911BE.2000405@garzik.org> <471D0ADC.7000005@garzik.org> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -4.4 (----) X-Spam-Report: SpamAssassin version 3.1.9 on srv5.dvmed.net summary: Content analysis details: (-4.4 points, 5.0 required) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 800 Lines: 20 Daniel Barkalow wrote: > I have a device that supports MSI and INTX-disable, and, with MSI on (and > delivering interrupts successfully) also sends legacy interrupts (on > the IRQ that is no longer associated with the device) unless INTX is > disabled. Without the intx_disable(), the kernel disables the IRQ > entirely and breaks a random other device in my system. That sort of behavior is an example of why I wrote pci_intx() in the first place, and employed it by default throughout the ATA drivers (before it migrated into PCI core). 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/