On Fri 31-05-13 03:22:59, David Rientjes wrote: > On Fri, 31 May 2013, Michal Hocko wrote: [...] > > > If the oom notifier is in the oom cgroup, it may not be able to > > > successfully read the memcg "tasks" file to even determine the set of > > > eligible processes. > > > > It would have to use preallocated buffer and have mlocked all the memory > > that will be used during oom event. > > > > Wrong, the kernel itself allocates memory when reading this information > and that would fail in an oom memcg. But that memory is not charged to a memcg, is it? So unless you are heading towards global OOM you should be safe. -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>