On 03/03/2016 05:18, Parav Pandit wrote: > On Thu, Mar 3, 2016 at 1:28 AM, Parav Pandit <[email protected]> wrote: >> On Wed, Mar 2, 2016 at 11:09 PM, Tejun Heo <[email protected]> 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.
If I understand correctly, task_css() requires rcu read lock being held. Is task_get_css() suitable here?
