From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264234AbTH1TgS (ORCPT ); Thu, 28 Aug 2003 15:36:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264256AbTH1TgS (ORCPT ); Thu, 28 Aug 2003 15:36:18 -0400 Received: from fw.osdl.org ([65.172.181.6]:61082 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S264234AbTH1TgQ (ORCPT ); Thu, 28 Aug 2003 15:36:16 -0400 Date: Thu, 28 Aug 2003 12:20:06 -0700 From: Andrew Morton To: William Lee Irwin III Cc: James.Bottomley@SteelEye.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH] make voyager work again after the cpumask_t changes Message-Id: <20030828122006.0c9b4aa4.akpm@osdl.org> In-Reply-To: <20030828193123.GI4306@holomorphy.com> References: <1062097375.1952.41.camel@mulgrave> <20030828121016.2c0e2716.akpm@osdl.org> <20030828193123.GI4306@holomorphy.com> X-Mailer: Sylpheed version 0.9.4 (GTK+ 1.2.10; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org William Lee Irwin III wrote: > > > (Actually it is legitimate: you may want to run a NR_CPUS=48 kernel on a > > 2-way voyager just for testing purposes). I'll drop your patch in as-is, > > and maybe Bill can take a look at cpumaskifying it sometime? > > I'm not convinced it's worth it; AIUI there are architectural limits to > Voyager that prevent it from ever supporting > 32x in hardware, Sure. But we want a kernel which was compiled with NR_CPUS>32 to still boot and run correctly on voyager. Yes, the code as-is will happen to work, but dtrt and all that.