From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756010Ab0CHXLY (ORCPT ); Mon, 8 Mar 2010 18:11:24 -0500 Received: from mx1.redhat.com ([209.132.183.28]:28869 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752174Ab0CHXLV (ORCPT ); Mon, 8 Mar 2010 18:11:21 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit From: Roland McGrath To: Lennart Poettering X-Fcc: ~/Mail/linus Cc: Oleg Nesterov , linux-kernel@vger.kernel.org, Americo Wang , James Morris , Kay Sievers , KOSAKI Motohiro , Kyle McMartin , Linus Torvalds , Michael Kerrisk Subject: Re: [PATCH] exit: PR_SET_ANCHOR for marking processes as reapers for child processes In-Reply-To: Lennart Poettering's message of Saturday, 6 March 2010 01:20:09 +0100 <20100306002009.GI28657@tango.0pointer.de> References: <20100202120457.GA19605@omega> <20100304140822.GA458@redhat.com> <20100304221434.17567187@magilla.sf.frob.com> <20100306002009.GI28657@tango.0pointer.de> Emacs: because Hell was full. Message-Id: <20100308231104.A513B1191@magilla.sf.frob.com> Date: Mon, 8 Mar 2010 15:11:04 -0800 (PST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Uh, no. Actually it's the fact that my sub-init gets the SIGCHLD, which > I am looking for. The clean ps tree is just a side-effect. Ok. In that case, there is a substantial can of worms in considering compatibility breakages, and especially the various wrinkles of setuid that could be security issues. It will take a lot of careful thought to be sure how we can do this without opening new ways to confuse and abuse a setuid program. Thanks, Roland