Hello Shyju, I have also encountered this symptom since 3.5-rc1. Still exist on 3.5-rc4. The last known working is 3.4. In my case, either "shutdown or reboot" or "service cgroup stop" reproduce this symptom. I have opened https://bugzilla.kernel.org/show_bug.cgi?id=43771 Masanari -- 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