From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754109AbYKZRp2 (ORCPT ); Wed, 26 Nov 2008 12:45:28 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751939AbYKZRpN (ORCPT ); Wed, 26 Nov 2008 12:45:13 -0500 Received: from e8.ny.us.ibm.com ([32.97.182.138]:59911 "EHLO e8.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751788AbYKZRpL (ORCPT ); Wed, 26 Nov 2008 12:45:11 -0500 Date: Wed, 26 Nov 2008 09:44:39 -0800 From: Sukadev Bhattiprolu To: Oleg Nesterov Cc: ebiederm@xmission.com, daniel@hozac.com, xemul@openvz.org, containers@lists.osdl.org, linux-kernel@vger.kernel.org Subject: Re: [RFC][PATCH][v2] Define/use siginfo_from_ancestor_ns() Message-ID: <20081126174439.GA427@us.ibm.com> References: <20081115212133.GA32140@us.ibm.com> <20081118175336.GA14178@redhat.com> <20081119012207.GA19092@us.ibm.com> <20081123231014.GA2424@redhat.com> <20081126031619.GA19756@us.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20081126031619.GA19756@us.ibm.com> X-Operating-System: Linux 2.0.32 on an i486 User-Agent: Mutt/1.5.15+20070412 (2007-04-11) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org | | Actually, I think this is enough to solve most problems, | | the further changes can be discussed later. OK, the only | | "real" problem is SIGSTOP, afaics. This looks solveable. | | Yes, SIGSTOP even from parent is ignored due to the SIGNAL_UNKILLABLE | check in get_signal_to_deliver. Actually with sig_task_ignored() patch, http://lkml.org/lkml/2008/11/18/251 SIGSTOP gets dropped early. To eventually allow SIGSTOP from ancestor ns, we need to pass 'from_ancestor_ns' into sig_ignored() ?