From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 7 May 2002 14:09:03 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 7 May 2002 14:09:01 -0400 Received: from holomorphy.com ([66.224.33.161]:37610 "EHLO holomorphy") by vger.kernel.org with ESMTP id ; Tue, 7 May 2002 14:08:57 -0400 Date: Tue, 7 May 2002 11:07:25 -0700 From: William Lee Irwin III To: Robert Love Cc: alan@lxorguk.ukuu.org.uk, linux-kernel@vger.kernel.org Subject: Re: [PATCH] 2.4-ac: migration_init improvements Message-ID: <20020507180725.GV32767@holomorphy.com> Mail-Followup-To: William Lee Irwin III , Robert Love , alan@lxorguk.ukuu.org.uk, linux-kernel@vger.kernel.org In-Reply-To: <1020794038.806.25.camel@bigsur> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Description: brief message Content-Disposition: inline User-Agent: Mutt/1.3.25i Organization: The Domain of Holomorphy Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, May 07, 2002 at 10:53:57AM -0700, Robert Love wrote: > The attached patch simplifies the migration_init code (an ugly lot) with > a simpler mechanism. This is Erich Focht's version which is now in > 2.5. It has proved stable both there and in my testing. > The new method is to bring up the first migration_thread, and then use > it to migrate the remaining threads to their respective CPUs. The > method makes sense and removes a lot of code. > This patch also includes a boot hang fix demonstrated on arches where > logical CPU mapping != physical CPU mapping. The bug was reported and > fixed by James Bottomley in 2.5. > Patch is against 2.4.19-pre7-ac4, please apply. > Robert Love No objections here. Focht's code works just as well or better, and has further advantages with respect to hotplug cpu support. Cheers, Bill