A slightly off topic comment, for where this thread has gone but relevant if we are talking about cgroup namespaces. If don't implement compatibility with existing userspace, they get a nack. A backwards-incompatible change should figure out how to remove the need for any namespaces. Because that is what namespaces are about backwards compatibility. Eric -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html