Allocating root in one cgroup and rest in seperate cgroup, makes the root hang

Solution Unverified - Updated -

Issue

  • ps ef from root hangs if root is kept in one cgroup and rest in a separate cgroup.
  • What's the use of memory.memsw.limit_in_bytes and memory.oom_control parameter in cgroup ?

Environment

  • Red Hat Enterprise Linux 6.
  • cgroup

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