From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751472AbVKYT6N (ORCPT ); Fri, 25 Nov 2005 14:58:13 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751473AbVKYT6N (ORCPT ); Fri, 25 Nov 2005 14:58:13 -0500 Received: from smtp.osdl.org ([65.172.181.4]:40361 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S1751472AbVKYT6M (ORCPT ); Fri, 25 Nov 2005 14:58:12 -0500 Date: Fri, 25 Nov 2005 11:57:25 -0800 From: Andrew Morton To: guillaume.thouvenin@bull.net, linux-kernel@vger.kernel.org, matthltc@us.ibm.com Cc: Paul Jackson Subject: Re: [BUG linux-2.6.15-rc] process events connector - soft lockup detected Message-Id: <20051125115725.3ff23590.akpm@osdl.org> In-Reply-To: <20051125114741.6549ef3a.akpm@osdl.org> References: <20051125144226.37778246@frecb000711.frec.bull.fr> <20051125114741.6549ef3a.akpm@osdl.org> X-Mailer: Sylpheed version 1.0.4 (GTK+ 1.2.10; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Andrew Morton wrote: > > Gad, how ddd that get in there? That's how to pronounce "did" with a headcold. I note that copy_process() also calls cpuset_fork() under write_lock_irq(&tasklist_lock) which is a) inefficient and b) forbidden according to the nice comment over task_lock().