Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753936AbYGMP3i (ORCPT ); Sun, 13 Jul 2008 11:29:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751421AbYGMP3a (ORCPT ); Sun, 13 Jul 2008 11:29:30 -0400 Received: from smtp-out03.alice-dsl.net ([88.44.63.5]:45518 "EHLO smtp-out03.alice-dsl.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751298AbYGMP33 (ORCPT ); Sun, 13 Jul 2008 11:29:29 -0400 To: Linus Torvalds Cc: 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 From: Andi Kleen References: <20080712031736.GA3040@damson.getinternet.no> Date: Sun, 13 Jul 2008 17:29:26 +0200 In-Reply-To: (Linus Torvalds's message of "Sat, 12 Jul 2008 14:30:33 -0700 (PDT)") Message-ID: <87vdz9ztt5.fsf@basil.nowhere.org> User-Agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/21.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-OriginalArrivalTime: 13 Jul 2008 15:22:00.0582 (UTC) FILETIME=[323D2A60:01C8E4FC] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 609 Lines: 15 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. -Andi -- 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/