From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx104.postini.com [74.125.245.104]) by kanga.kvack.org (Postfix) with SMTP id 882C16B005D for ; Thu, 3 Jan 2013 17:20:45 -0500 (EST) Received: by mail-ie0-f171.google.com with SMTP id 17so19119348iea.30 for ; Thu, 03 Jan 2013 14:20:44 -0800 (PST) Date: Thu, 3 Jan 2013 17:20:39 -0500 From: Tejun Heo Subject: Re: [PATCHSET cgroup/for-3.8] cpuset: decouple cpuset locking from cgroup core Message-ID: <20130103222039.GD2753@mtj.dyndns.org> References: <1354138460-19286-1-git-send-email-tj@kernel.org> <50DAD696.8050400@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <50DAD696.8050400@huawei.com> Sender: owner-linux-mm@kvack.org List-ID: To: Li Zefan Cc: paul@paulmenage.org, glommer@parallels.com, containers@lists.linux-foundation.org, cgroups@vger.kernel.org, peterz@infradead.org, mhocko@suse.cz, bsingharora@gmail.com, hannes@cmpxchg.org, kamezawa.hiroyu@jp.fujitsu.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Hey, Li. On Wed, Dec 26, 2012 at 06:51:02PM +0800, Li Zefan wrote: > I created a cpuset which has cpuset.cpus=1, and I forked a few cpu-hog tasks > and moved them to this cpuset, and the final operations was offlining cpu1. > It stucked. This was caused by not rebuilding sched domains synchronously from cpu offline path. I looks like scheduler got confused and put tasks on the dead cpu. Should be okay in the updated patchset. Can you please test / review that one? Thanks. -- tejun -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org