Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267561AbUIJQtx (ORCPT ); Fri, 10 Sep 2004 12:49:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267543AbUIJQt2 (ORCPT ); Fri, 10 Sep 2004 12:49:28 -0400 Received: from ozlabs.org ([203.10.76.45]:17881 "EHLO ozlabs.org") by vger.kernel.org with ESMTP id S267583AbUIJQs1 (ORCPT ); Fri, 10 Sep 2004 12:48:27 -0400 Date: Sat, 11 Sep 2004 02:44:25 +1000 From: Anton Blanchard To: Tigran Aivazian Cc: Nathan Bryant , Bill Davidsen , linux-kernel@vger.kernel.org Subject: Re: Latest microcode data from Intel. Message-ID: <20040910164425.GS24408@krispykreme> References: <4141CCA8.30807@optonline.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.6+20040818i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 587 Lines: 14 > CPU hotplug? Is there such a thing as _working_ CPU hotplug support in > Linux? (or any hardware that can actually allow unplugging/plugging CPUs?) Sure, on ppc64 we move CPUs between partitions on the fly and use hotplug cpu tricks with POWER5 threads to switch between single threaded mode and SMT mode while the OS is running. Anton - 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/