From: Matthew Wilcox Subject: Re: [discuss] Re: 2.6.19-rc4: known unfixed regressions (v3) Date: Wed, 8 Nov 2006 05:22:37 -0700 Message-ID: <20061108122237.GF27140@parisc-linux.org> References: <20061107171143.GU27140@parisc-linux.org> <200611080839.46670.ak@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Cc: Andrew Morton , len.brown@intel.com, Thierry Vignaud , linux-pm@osdl.org, Ernst Herzberg , Aaron Durbin , Alex Romosan , openib-general@openib.org, neilb@cse.unsw.edu.au, linux-ide@vger.kernel.org, Linus Torvalds , oprofile-list@lists.sourceforge.net, Jens Axboe , linux-pci@atrey.karlin.mff.cuni.cz, Elimar Riesebieter , discuss@x86-64.org, Komuro , Jeff Chua , Tim Chen , phil.el@wanadoo.fr, gregkh@suse.de, Linux Kernel Mailing List , Christian , Adrian Bunk , linux-acpi@vger.kernel.org, mingo@redhat.com, nfs@lists.sourceforge.net, "Eric W. Bied Return-path: To: Andi Kleen In-Reply-To: <200611080839.46670.ak@suse.de> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.osdl.org Errors-To: linux-pm-bounces@lists.osdl.org List-ID: On Wed, Nov 08, 2006 at 08:39:44AM +0100, Andi Kleen wrote: > ACPI knows the number of busses. But what if the number of busses increases later, eg by hotplugging a card with a PCI-PCI bridge on it? Or does it know the number of busses which can be supported by this machine's MMCONFIG region? If so, why isn't this information reported in the MCFG table properly instead of claiming to support 0-255? > Just need to get the information there, which is a ordering issue > (normally MCFG initialization is before this is known I think) > = > Len, ACPI folks, any ideas how to fix this cleanly? > = > -Andi