Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755243AbYGLWIc (ORCPT ); Sat, 12 Jul 2008 18:08:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753339AbYGLWIY (ORCPT ); Sat, 12 Jul 2008 18:08:24 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:54473 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752314AbYGLWIY (ORCPT ); Sat, 12 Jul 2008 18:08:24 -0400 Date: Sat, 12 Jul 2008 15:07:35 -0700 (PDT) From: Linus Torvalds To: Dmitry Adamushko cc: 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 In-Reply-To: Message-ID: References: <20080712031736.GA3040@damson.getinternet.no> User-Agent: Alpine 1.10 (LFD 962 2008-03-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1166 Lines: 28 On Sat, 12 Jul 2008, Linus Torvalds wrote: > > This patch almost certainly doesn't work, but let me explain: Well, I decided to just take the plunge and test it. It WorksForMe(tm), so it's no _totally_ broken. But I really didn't test it except to see that it still booted, and I don't use cpusets and never saw the original bug, of course. But considering how simple it is, if it works for people as a way to work around stupid CPU migration issues due to subtle wakeup calls, I'd almost prefer to really solve this whole issue with that cpu_active_map thing. It's so simple it should be really _robust_ in the presense of problems elsewhere (like the whole cpusets scheduling domain mess). Assuming I didn't do anythign stupid, of course, which is why it would definitely need much more testing. And especially if Vegard can test it with the case that oopsed for him due to the bad migration.. Linus -- 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/