On Thu, Jun 21, 2018 at 03:58:06PM +0800, Waiman Long wrote: > As for the inconsistency between the real root and the container root, > this is true for almost all the controllers. So it is a generic problem. > One possible solution is to create a kind a pseudo root cgroup for the > container that looks and feels like a real root. But is there really a > need to do that? I don't really know. I thought the idea was to make containers indistinguishable from a real system. Now I know we're really rather far away from that in reality, and I really have no clue how important all that is. It all depends on how exactly this works; is it like I assumed, that this file is owned by the parent instead of the current directory? And that if you namespace this, you have an effective read-only file? Then fixing the inconsistency is trivial; simply provide a read-only file for the actual root cgroup too. And if the solution is trivial, I don't see a good reason not to do it. -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html