Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762690AbYAKX6f (ORCPT ); Fri, 11 Jan 2008 18:58:35 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932166AbYAKX6X (ORCPT ); Fri, 11 Jan 2008 18:58:23 -0500 Received: from jurassic.park.msu.ru ([195.208.223.243]:42131 "EHLO jurassic.park.msu.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932148AbYAKX6W (ORCPT ); Fri, 11 Jan 2008 18:58:22 -0500 Date: Sat, 12 Jan 2008 02:58:56 +0300 From: Ivan Kokshaysky To: Matthew Wilcox Cc: Linus Torvalds , Greg KH , Arjan van de Ven , Greg KH , linux-kernel@vger.kernel.org, Jeff Garzik , linux-pci@atrey.karlin.mff.cuni.cz, Benjamin Herrenschmidt , Martin Mares Subject: Re: [Patch v2] Make PCI extended config space (MMCONFIG) a driver opt-in Message-ID: <20080111235856.GA16079@jurassic.park.msu.ru> References: <20080111194524.GA17170@suse.de> <20080111194931.GN18741@parisc-linux.org> <20080111201716.GO18741@parisc-linux.org> <20080111204228.GP18741@parisc-linux.org> <20080111211753.GR18741@parisc-linux.org> <20080111213803.GS18741@parisc-linux.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080111213803.GS18741@parisc-linux.org> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 874 Lines: 21 On Fri, Jan 11, 2008 at 02:38:03PM -0700, Matthew Wilcox wrote: > On Fri, Jan 11, 2008 at 01:28:30PM -0800, Linus Torvalds wrote: > > Hmm. Were all those reports root-caused to just that BAR probing? If so, > > we may be in better shape than I worried. > > I believe so. Ditto. One typical problem is that on "Intel(r) 3 Series Experss Chipset Family" MMCONFIG probing of the BAR #2 (frame buffer address) of integrated graphics device locks up the machine (depending on BIOS settings, of course). This happens because the frame buffer of IGD has higher decode priority than MMCONFIG range, as stated in Intel docs... Ivan. -- 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/