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Date: Thu, 3 Mar 2016 08:48:54 +0530
Message-ID: <CAG53R5WcbE8Hesb2sh6xg1fRLBOBt+VFo0L3U6WLPr3irtko8w@mail.gmail.com>
Subject: Re: [PATCHv9 1/3] rdmacg: Added rdma cgroup controller
From: Parav Pandit <pandit.parav@gmail.com>
To: Tejun Heo <tj@kernel.org>
Cc: cgroups@vger.kernel.org, linux-doc@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org,
        lizefan@huawei.com, Johannes Weiner <hannes@cmpxchg.org>,
        Doug Ledford <dledford@redhat.com>, Liran Liss <liranl@mellanox.com>,
        "Hefty, Sean" <sean.hefty@intel.com>,
        Jason Gunthorpe <jgunthorpe@obsidianresearch.com>,
        Haggai Eran <haggaie@mellanox.com>, Jonathan Corbet <corbet@lwn.net>,
        james.l.morris@oracle.com, serge@hallyn.com,
        Or Gerlitz <ogerlitz@mellanox.com>, Matan Barak <matanb@mellanox.com>,
        raindel@mellanox.com, akpm@linux-foundation.org,
        linux-security-module@vger.kernel.org
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On Thu, Mar 3, 2016 at 1:28 AM, Parav Pandit <pandit.parav@gmail.com> wrote:
> On Wed, Mar 2, 2016 at 11:09 PM, Tejun Heo <tj@kernel.org> wrote:
>> Nothing seems to prevent @cg from going away if this races with
>> @current being migrated to a different cgroup.  Have you run this with
>> lockdep and rcu debugging enabled?  This should have triggered a
>> warning.
I am able to reproduce this race. Looking into how to address it.