From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262583AbTJJHib (ORCPT ); Fri, 10 Oct 2003 03:38:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262597AbTJJHib (ORCPT ); Fri, 10 Oct 2003 03:38:31 -0400 Received: from holomorphy.com ([66.224.33.161]:47232 "EHLO holomorphy") by vger.kernel.org with ESMTP id S262583AbTJJHi3 (ORCPT ); Fri, 10 Oct 2003 03:38:29 -0400 Date: Fri, 10 Oct 2003 00:40:30 -0700 From: William Lee Irwin III To: YoshiyaETO Cc: Stuart Longland , linux-kernel@vger.kernel.org, Stephan von Krawczynski , lgb@lgb.hu, Fabian.Frederick@prov-liege.be Subject: Re: 2.7 thoughts Message-ID: <20031010074030.GB700@holomorphy.com> Mail-Followup-To: William Lee Irwin III , YoshiyaETO , Stuart Longland , linux-kernel@vger.kernel.org, Stephan von Krawczynski , lgb@lgb.hu, Fabian.Frederick@prov-liege.be References: <20031009115809.GE8370@vega.digitel2002.hu> <20031009165723.43ae9cb5.skraw@ithnet.com> <3F864F82.4050509@longlandclan.hopto.org> <20031010063039.GA700@holomorphy.com> <047b01c38f00$60b34840$6a647c0a@eto> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <047b01c38f00$60b34840$6a647c0a@eto> Organization: The Domain of Holomorphy User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Oct 10, 2003 at 04:19:46PM +1000, Stuart Longland wrote: >>> * hotplug motherboard & entire computer too I spose ;-) > From: "William Lee Irwin III" >> Um, this is worse than the above wrt. being too vague. On Fri, Oct 10, 2003 at 04:30:27PM +0900, YoshiyaETO wrote: > "Hotplug node" is a better explanation, I think. > "Node" includes CPUs and/or Memory and/or some kind of IOs. > And "Node" should be flexibly configurable also. I don't see any reason to connect it with the notion of a node. The main points of contention would appear to be cooperative vs. forcible (where I believe cooperative is acknowledged as the only feasible problem), and the potential connections with ZONE_HIGHMEM wrt. constraints that would artificially introduce to 64-bit kernels. The fact some systems would want to do whole nodes at a time with some cpus and io buses in tandem is largely immaterial and doesn't simplify, complicate, or otherwise affect the VM mechanics. -- wli