linux-kernel - Re: WARNING: at kernel/cpuset.c:1139

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Message-ID: <20140728192026.GI7462@htj.dyndns.org>
Date:	Mon, 28 Jul 2014 15:20:26 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Li Zefan <lizefan@...wei.com>
Cc:	Mike Qiu <qiudayu@...ux.vnet.ibm.com>, cgroups@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: WARNING: at kernel/cpuset.c:1139

On Thu, Jul 24, 2014 at 08:27:40AM +0800, Li Zefan wrote:
> On 2014/7/23 23:12, Tejun Heo wrote:
> > On Wed, Jul 23, 2014 at 10:50:29AM +0800, Mike Qiu wrote:
> >> commit 734d45130cb ("cpuset: update cs->effective_{cpus, mems} when config
> >> changes") introduce the below warning in my server.
> >>
> >> [   35.652137] ------------[ cut here ]------------
> >> [   35.652141] WARNING: at kernel/cpuset.c:1139
> > 
> > Hah, can you reproduce it?  If so, can you detail how?
> > 
> 
> It's a typo.
> 
> WARN_ON(!cgroup_on_dfl(cp->css.cgroup) &&
> 	nodes_equal(cp->mems_allowed, cp->effective_mems));
> 
> should be
> 
> WARN_ON(!cgroup_on_dfl(cp->css.cgroup) &&
> 	!nodes_equal(cp->mems_allowed, cp->effective_mems));

Care to post a patch?

Thanks.

-- 
tejun
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