Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762261AbXFDTcU (ORCPT ); Mon, 4 Jun 2007 15:32:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1760906AbXFDTb4 (ORCPT ); Mon, 4 Jun 2007 15:31:56 -0400 Received: from netops-testserver-4-out.sgi.com ([192.48.171.29]:41894 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1760846AbXFDTbz (ORCPT ); Mon, 4 Jun 2007 15:31:55 -0400 Date: Mon, 4 Jun 2007 12:31:51 -0700 From: Paul Jackson To: "Serge E. Hallyn" Cc: menage@google.com, akpm@linux-foundation.org, dev@sw.ru, xemul@sw.ru, serue@us.ibm.com, vatsa@in.ibm.com, ebiederm@xmission.com, haveblue@us.ibm.com, svaidy@linux.vnet.ibm.com, balbir@in.ibm.com, cpw@sgi.com, ckrm-tech@lists.sourceforge.net, linux-kernel@vger.kernel.org, containers@lists.osdl.org, mbligh@google.com, rohitseth@google.com, devel@openvz.org Subject: Re: [PATCH 00/10] Containers(V10): Generic Process Containers Message-Id: <20070604123151.4db007a6.pj@sgi.com> In-Reply-To: <20070604191412.GA901@sergelap.austin.ibm.com> References: <20070529130104.461765000@menage.corp.google.com> <20070604191412.GA901@sergelap.austin.ibm.com> Organization: SGI X-Mailer: Sylpheed version 2.2.4 (GTK+ 2.8.3; i686-pc-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 Content-Length: 1087 Lines: 27 What you describe, Serge, sounds like semantics carried over from cpusets. Serge wrote: > A task can't join a cpuset unless 'cpus' and 'mems' are set. Yup - don't want to run a task in a cpuset that lacks cpu, or lacks memory. Hard to run without those. > These don't seem to automatically inherit the parent's values Yup - early in the life of cpusets, a created cpuset inherited the cpus and mems of its parent. But that broke the exclusive property big time. You will recall that a cpu_exclusive or mem_exclusive cpuset cannot overlap the cpus or memory, respectively, of any of its sibling cpusets. So we changed it to creating new cpusets empty of cpus or memory. -- I won't rest till it's the best ... Programmer, Linux Scalability Paul Jackson 1.925.600.0401 - 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/