Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755573AbYGNPuC (ORCPT ); Mon, 14 Jul 2008 11:50:02 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754000AbYGNPty (ORCPT ); Mon, 14 Jul 2008 11:49:54 -0400 Received: from relay2.sgi.com ([192.48.171.30]:39316 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753986AbYGNPtx (ORCPT ); Mon, 14 Jul 2008 11:49:53 -0400 Message-ID: <487B759B.40700@sgi.com> Date: Mon, 14 Jul 2008 08:49:47 -0700 From: Mike Travis User-Agent: Thunderbird 2.0.0.6 (X11/20070801) MIME-Version: 1.0 To: Andi Kleen CC: Linus Torvalds , Dmitry Adamushko , Vegard Nossum , Paul Menage , Max Krasnyansky , Paul Jackson , Peter Zijlstra , miaox@cn.fujitsu.com, rostedt@goodmis.org, Thomas Gleixner , Ingo Molnar , Linux Kernel Subject: Re: current linux-2.6.git: cpusets completely broken References: <20080712031736.GA3040@damson.getinternet.no> <87vdz9ztt5.fsf@basil.nowhere.org> In-Reply-To: <87vdz9ztt5.fsf@basil.nowhere.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 780 Lines: 19 Andi Kleen wrote: > Linus Torvalds writes: >> Btw - the way to avoid this whole problem might be to make CPU migration >> use a *different* CPU map than "online". > > In general I think we need more such masks. Some time ago I had > a patch to introduce cpu_ever_online_mask, which prevented some > problems with accessing uninitialized per cpu data. Not to divert the conversation too much but I would like to see these maps allocated based on the real number of cpus and not NR_CPUS. Thanks, Mike -- 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/