Tried this on 2.6.31.1 but it hung while waiting for the fd from the child.

  [+] Executing child from child fork.
  [+] Opening parent mem /proc/11045/mem in child.
  [+] Sending fd 3 to parent.
  [+] Waiting for transferred fd in parent.

I waited 2-3 minutes.

<edit> Argh, I need 2.6.39, sorry.