From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262222AbVFINzE (ORCPT ); Thu, 9 Jun 2005 09:55:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262349AbVFINzE (ORCPT ); Thu, 9 Jun 2005 09:55:04 -0400 Received: from jurassic.park.msu.ru ([195.208.223.243]:57999 "EHLO jurassic.park.msu.ru") by vger.kernel.org with ESMTP id S262222AbVFINzB (ORCPT ); Thu, 9 Jun 2005 09:55:01 -0400 Date: Thu, 9 Jun 2005 17:54:41 +0400 From: Ivan Kokshaysky To: Benjamin Herrenschmidt Cc: Andreas Koch , Linus Torvalds , linux-pci@atrey.karlin.mff.cuni.cz, linux-kernel@vger.kernel.org, gregkh@suse.de Subject: Re: PROBLEM: Devices behind PCI Express-to-PCI bridge not mapped Message-ID: <20050609175441.C9187@jurassic.park.msu.ru> References: <20050604022600.GA8221@erebor.esa.informatik.tu-darmstadt.de> <20050604155742.GA14384@erebor.esa.informatik.tu-darmstadt.de> <20050605204645.A28422@jurassic.park.msu.ru> <20050606002739.GA943@erebor.esa.informatik.tu-darmstadt.de> <20050606184335.A30338@jurassic.park.msu.ru> <20050608173409.GA32004@erebor.esa.informatik.tu-darmstadt.de> <20050609023639.A7067@jurassic.park.msu.ru> <1118289850.6850.164.camel@gaston> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <1118289850.6850.164.camel@gaston>; from benh@kernel.crashing.org on Thu, Jun 09, 2005 at 02:04:10PM +1000 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jun 09, 2005 at 02:04:10PM +1000, Benjamin Herrenschmidt wrote: > Hrm... IO at 0 for a P2P bridge is perfectly valid, at least on a number > of architectures... Sure, but on x86 it blocks access to VGA registers and other legacy stuff. That's why Andreas' machine hangs, I suppose. Ivan.