From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266327AbUGPDbF (ORCPT ); Thu, 15 Jul 2004 23:31:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266333AbUGPDbF (ORCPT ); Thu, 15 Jul 2004 23:31:05 -0400 Received: from e2.ny.us.ibm.com ([32.97.182.102]:39871 "EHLO e2.ny.us.ibm.com") by vger.kernel.org with ESMTP id S266327AbUGPDbD (ORCPT ); Thu, 15 Jul 2004 23:31:03 -0400 Subject: Re: sched domains bringup race? From: Dave Hansen To: Nick Piggin Cc: "Matthew C. Dobson [imap]" , Linux Kernel Mailing List In-Reply-To: <40F74599.7000606@yahoo.com.au> References: <1089944026.32312.47.camel@nighthawk> <40F74599.7000606@yahoo.com.au> Content-Type: text/plain Message-Id: <1089948659.6886.2.camel@nighthawk> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 Date: Thu, 15 Jul 2004 20:30:59 -0700 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2004-07-15 at 20:03, Nick Piggin wrote: > It shouldn't because sched_init sets up dummy domains for > all runqueues. > > Obviously something is going wrong somewhere though. Hmmm, but there still might be some concurrency problems, right? There isn't any locking while the setup is being done, so are all of the intermediate initialization states valid? Or, could one of the CPUs be catching the init code in the middle of an operation? -- Dave