linux-kernel - Re: A "domain invalid" cgroup *can* sometimes have member tasks

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Message-ID: <20180220230136.GD170644@devbig577.frc2.facebook.com>
Date:   Tue, 20 Feb 2018 15:01:36 -0800
From:   Tejun Heo <tj@...nel.org>
To:     "Michael Kerrisk (man-pages)" <mtk.manpages@...il.com>
Cc:     "Serge E. Hallyn" <serge@...lyn.com>,
        lkml <linux-kernel@...r.kernel.org>,
        "open list:CONTROL GROUP (CGROUP)" <cgroups@...r.kernel.org>
Subject: Re: A "domain invalid" cgroup *can* sometimes have member tasks

On Tue, Feb 20, 2018 at 11:35:47AM -0800, Tejun Heo wrote:
> Hmm... nr_populated_domain_children check should have caught that
> condition and rejected it.  Will look into what's going on.

Ah, okay, I was special-casing the first level children case too
early.  If you nest the test case by one more level, it fails as
intended.  I'll fix the checks.

Thanks.

-- 
tejun