From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752311AbXDICGK (ORCPT ); Sun, 8 Apr 2007 22:06:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752319AbXDICGK (ORCPT ); Sun, 8 Apr 2007 22:06:10 -0400 Received: from mx1.redhat.com ([66.187.233.31]:45490 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752311AbXDICGI (ORCPT ); Sun, 8 Apr 2007 22:06:08 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit From: Roland McGrath To: ebiederm@xmission.com (Eric W. Biederman) X-Fcc: ~/Mail/linus Cc: Oleg Nesterov , Andrew Morton , Davide Libenzi , Ingo Molnar , Linus Torvalds , Robin Holt , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org Subject: Re: [RFC, PATCH 1/3] introduce SYS_CLONE_MASK In-Reply-To: Eric W. Biederman's message of Sunday, 8 April 2007 19:05:29 -0600 Emacs: resistance is futile; you will be assimilated and byte-compiled. Message-Id: <20070409020600.6338BD82F4@pipsqueak.sf.frob.com> Date: Sun, 8 Apr 2007 19:06:00 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I concur with Eric's assessment. Adding new magic bits to the generic clone path seems like a poor way to cope with kernel threads. I think it's better if kernel thread setup gets less like normal user process setup. I also agree with Eric that PPID of 0 is a very natural way for kernel threads to be displayed. We need to know more about the nature of the compatibility issue in procps to judge whether there is good reason to avoid changing it. Thanks, Roland