From: Tejun Heo <tj@kernel.org>
To: Li Zefan <lizefan@huawei.com>
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
Subject: Re: [PATCHSET cgroup/for-3.8] cpuset: decouple cpuset locking from cgroup core
Date: Thu, 3 Jan 2013 17:20:39 -0500 [thread overview]
Message-ID: <20130103222039.GD2753@mtj.dyndns.org> (raw)
In-Reply-To: <50DAD696.8050400@huawei.com>
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
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prev parent reply other threads:[~2013-01-03 22:20 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-28 21:34 Tejun Heo
2012-11-28 21:34 ` [PATCH 01/13] cpuset: remove unused cpuset_unlock() Tejun Heo
2012-11-28 21:34 ` [PATCH 02/13] cpuset: remove fast exit path from remove_tasks_in_empty_cpuset() Tejun Heo
2012-11-28 21:34 ` [PATCH 03/13] cpuset: introduce ->css_on/offline() Tejun Heo
2012-11-28 21:34 ` [PATCH 04/13] cpuset: introduce CS_ONLINE Tejun Heo
2012-11-28 21:34 ` [PATCH 05/13] cpuset: introduce cpuset_for_each_child() Tejun Heo
2012-11-28 21:34 ` [PATCH 06/13] cpuset: cleanup cpuset[_can]_attach() Tejun Heo
2012-12-26 10:20 ` Li Zefan
2012-12-26 12:04 ` Tejun Heo
2013-01-02 4:42 ` Rusty Russell
2013-01-02 15:34 ` Tejun Heo
2013-01-03 0:47 ` Rusty Russell
2013-01-03 2:29 ` Tejun Heo
2013-01-06 23:28 ` Rusty Russell
2012-11-28 21:34 ` [PATCH 07/13] cpuset: drop async_rebuild_sched_domains() Tejun Heo
2012-11-28 21:34 ` [PATCH 08/13] cpuset: reorganize CPU / memory hotplug handling Tejun Heo
2012-11-28 21:34 ` [PATCH 09/13] cpuset: don't nest cgroup_mutex inside get_online_cpus() Tejun Heo
2012-11-28 21:34 ` [PATCH 10/13] cpuset: make CPU / memory hotplug propagation asynchronous Tejun Heo
2012-11-28 21:34 ` [PATCH 11/13] cpuset: pin down cpus and mems while a task is being attached Tejun Heo
2012-11-28 21:34 ` [PATCH 12/13] cpuset: schedule hotplug propagation from cpuset_attach() if the cpuset is empty Tejun Heo
2012-11-28 21:34 ` [PATCH 13/13] cpuset: replace cgroup_mutex locking with cpuset internal locking Tejun Heo
2012-11-29 11:14 ` [PATCHSET cgroup/for-3.8] cpuset: decouple cpuset locking from cgroup core Glauber Costa
2012-11-29 14:26 ` Tejun Heo
2012-11-29 14:36 ` Tejun Heo
2012-11-30 3:21 ` Kamezawa Hiroyuki
2012-11-30 8:33 ` Michal Hocko
2012-11-30 9:00 ` Glauber Costa
2012-11-30 9:24 ` Michal Hocko
2012-11-30 9:33 ` Glauber Costa
2012-11-30 9:42 ` Glauber Costa
2012-11-30 9:49 ` Michal Hocko
2012-11-30 10:00 ` Glauber Costa
2012-11-30 14:59 ` Tejun Heo
2012-11-30 15:09 ` Glauber Costa
2012-12-03 15:22 ` Michal Hocko
2012-12-03 16:53 ` Tejun Heo
2012-12-06 6:25 ` Li Zefan
2012-12-06 13:09 ` Michal Hocko
2012-12-06 16:54 ` Tejun Heo
2012-12-26 10:51 ` Li Zefan
2013-01-02 8:53 ` Michal Hocko
2013-01-02 15:36 ` Tejun Heo
2013-01-02 16:02 ` Michal Hocko
2013-01-03 22:20 ` Tejun Heo [this message]
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