From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753154AbXFKNMO (ORCPT ); Mon, 11 Jun 2007 09:12:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750774AbXFKNME (ORCPT ); Mon, 11 Jun 2007 09:12:04 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:50608 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750714AbXFKNMA (ORCPT ); Mon, 11 Jun 2007 09:12:00 -0400 Date: Mon, 11 Jun 2007 15:11:47 +0200 From: Ingo Molnar To: Vegard Nossum Cc: linux-kernel@vger.kernel.org, Thomas Gleixner Subject: Re: IRQ handler type mismatch for IRQ 7 Message-ID: <20070611131147.GA31307@elte.hu> References: <19f34abd0706110607u6cf889dci9b8d48494cb40be0@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <19f34abd0706110607u6cf889dci9b8d48494cb40be0@mail.gmail.com> User-Agent: Mutt/1.5.14 (2007-02-12) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -2.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.1.7 -2.0 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Vegard Nossum wrote: > I receive this on a fresh install of Fedora 7 (x86_64) running > 2.6.21-1.3194.fc7, and wonder if it's something to worry about: > > IRQ handler type mismatch for IRQ 7 > current handler: parport0 > [] request_irq+0xd7/0xfd > [] serial8250_startup+0x423/0x56f so both parport and serial is on the same IRQ: #7, but the parport one does not support shared interrupt lines (IRQF_SHARED). You can probably change the mapping in the BIOS (change the serial one to say IRQ#3 or IRQ#4). I suspect you dont have any real parallel port hardware attached? (and probably no serial port hardware either?) So you can safely ignore this. Ingo