From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753675AbbE1Oyi (ORCPT ); Thu, 28 May 2015 10:54:38 -0400 Received: from mail-wi0-f172.google.com ([209.85.212.172]:33384 "EHLO mail-wi0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752213AbbE1Oy3 (ORCPT ); Thu, 28 May 2015 10:54:29 -0400 Message-ID: <1432824866.3237.198.camel@gmail.com> Subject: Re: sched_setscheduler() vs idle_balance() race From: Mike Galbraith To: Peter Zijlstra Cc: LKML , Ingo Molnar , ktkhai@parallels.com Date: Thu, 28 May 2015 16:54:26 +0200 In-Reply-To: <20150528135355.GK3644@twins.programming.kicks-ass.net> References: <1432799032.3237.119.camel@gmail.com> <20150528135355.GK3644@twins.programming.kicks-ass.net> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.12.11 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2015-05-28 at 15:53 +0200, Peter Zijlstra wrote: > Say, how easy can that thing be reproduced? It doesn't seem to take the reporter very long to blow their box up. What they're doing must be pretty darn uncommon though. I have the source to a test application, no destructions to go with it though, and little time to play around. It has to be installed and whatnot, it's not the desired make-it-go-boom.c. > The below is compile tested only, but it might just work if I didn't > miss anything :-) I'll take it for a spin, and take a peek at the application. -Mike