Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262025AbVEKT0N (ORCPT ); Wed, 11 May 2005 15:26:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262029AbVEKT0M (ORCPT ); Wed, 11 May 2005 15:26:12 -0400 Received: from omx2-ext.sgi.com ([192.48.171.19]:9385 "EHLO omx2.sgi.com") by vger.kernel.org with ESMTP id S262025AbVEKT0E (ORCPT ); Wed, 11 May 2005 15:26:04 -0400 Date: Wed, 11 May 2005 12:25:43 -0700 From: Paul Jackson To: dino@in.ibm.com Cc: Simon.Derr@bull.net, lse-tech@lists.sourceforge.net, akpm@osdl.org, nickpiggin@yahoo.com.au, vatsa@in.ibm.com, linux-kernel@vger.kernel.org Subject: Re: [Lse-tech] [PATCH] cpusets+hotplug+preepmt broken Message-Id: <20050511122543.6e9f6097.pj@sgi.com> In-Reply-To: <20050511191654.GA3916@in.ibm.com> References: <20050511191654.GA3916@in.ibm.com> Organization: SGI X-Mailer: Sylpheed version 1.0.0 (GTK+ 1.2.10; 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: 706 Lines: 16 Dinakar wrote: > It looks like hotplug operations need to take cpuset_sem as well. Could you explain why this is -- what is the deadlock? I don't doubt you found a deadlock, but since I don't understand it yet, it is difficult for me to judge whether this is the best fix. -- I won't rest till it's the best ... Programmer, Linux Scalability Paul Jackson 1.650.933.1373, 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/