From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 17 Apr 2002 15:01:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 17 Apr 2002 15:01:24 -0400 Received: from e31.co.us.ibm.com ([32.97.110.129]:3258 "EHLO e31.co.us.ibm.com") by vger.kernel.org with ESMTP id ; Wed, 17 Apr 2002 15:01:22 -0400 Date: Thu, 18 Apr 2002 00:34:03 +0530 From: Dipankar Sarma To: Robert Love Cc: linux-kernel@vger.kernel.org Subject: Re: 2.5.8: preemption + SMP broken ? Message-ID: <20020418003403.B780@in.ibm.com> Reply-To: dipankar@in.ibm.com In-Reply-To: <20020417232253.A629@in.ibm.com> <1019067957.1669.46.camel@phantasy> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Apr 17, 2002 at 02:25:57PM -0400, Robert Love wrote: > On Wed, 2002-04-17 at 13:52, Dipankar Sarma wrote: > > Has anyone tried out preemption with SMP ? > > Sure, all my testing is on SMP. The problem manifested itself in > 2.5.8-pre when some changes where made to the migration code. The race > is in the migration code - I am not sure it is preempts fault, per se, > but the attached patch should fix it. It is pending with Linus for the > next release. It worked! Thanks a lot, Robert. Thanks -- Dipankar Sarma http://lse.sourceforge.net Linux Technology Center, IBM Software Lab, Bangalore, India.