Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756417AbXKBOf4 (ORCPT ); Fri, 2 Nov 2007 10:35:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754610AbXKBOfj (ORCPT ); Fri, 2 Nov 2007 10:35:39 -0400 Received: from sacred.ru ([62.205.161.221]:59185 "EHLO sacred.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753688AbXKBOfh (ORCPT ); Fri, 2 Nov 2007 10:35:37 -0400 Message-ID: <472B327E.2060006@openvz.org> Date: Fri, 02 Nov 2007 17:21:50 +0300 From: Pavel Emelyanov User-Agent: Thunderbird 2.0.0.6 (X11/20070728) MIME-Version: 1.0 To: Ulrich Drepper CC: Andrew Morton , Ingo Molnar , Linus Torvalds , linux-kernel@vger.kernel.org, Sukadev Bhattiprolu , Serge Hallyn Subject: Re: [patch] PID namespace design bug, workaround References: <20071101144307.GA29566@elte.hu> <4729E7E4.8070208@openvz.org> <4729E936.4040400@redhat.com> <4729EB3C.9050102@openvz.org> <472A6D91.1020300@redhat.com> <472AD7D6.80900@openvz.org> <20071102010419.23f3db5c.akpm@linux-foundation.org> <472ADC78.6070706@openvz.org> <472B2EBD.7070007@redhat.com> In-Reply-To: <472B2EBD.7070007@redhat.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Greylist: Sender succeeded SMTP AUTH authentication, not delayed by milter-greylist-3.0 (sacred.ru [62.205.161.221]); Fri, 02 Nov 2007 17:21:52 +0300 (MSK) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1423 Lines: 43 Ulrich Drepper wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Pavel Emelyanov wrote: >>> Isn't it this? >>> >>> http://lkml.org/lkml/2007/11/1/141 >> That was the initial problem, and I already answered to Ingo about >> it > > No, look at my old mail which Ingo referenced in that posting. You pointed only one problem that is not a variation of "how do we handle the case when we pass our pid outside the namespace". This problem with signals is now being resolved at IBM by Sukadev and Serge (I put them in Cc), so this is about to be fixed by the time 2.6.24 releases (I hope). As far as the "passing the pid outside the namespace" is concerned, is my answer "pids should never be used outside the namespace they came from, otherwise userspace won't work as expected" satisfactory? So is "everything else", you mentioned, covered with the problems above? > - -- > ➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖ > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.7 (GNU/Linux) > > iD8DBQFHKy692ijCOnn/RHQRAtYLAJ98EXTGl3HMlCbVXOkL7TJRFfw4DACfcgYI > HHz5f7TfM05Dps+ruPRiUrU= > =IjS4 > -----END PGP SIGNATURE----- > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/