am ef2ec0be: am 53ea786b: Merge changes Ic686b4cb,Ie4b6c7ef

* commit 'ef2ec0beea13ae7de6ec2050e535fc360b4105be':
  procrank: support >4GB of memory from 32-bit procrank
  libpagemap: support 64-bit kernel from 32-bit libpagemap