Debug the global anon/private NOMMU mapping region tree

configname: CONFIG_DEBUG_NOMMU_REGIONS

Linux Kernel Configuration
└─>Kernel hacking
└─>Memory Debugging
└─>Debug the global anon/private NOMMU mapping region tree
In linux kernel since version 2.6.29 (release Date: 2009-03-23)  
This option causes the global tree of anonymous and private mapping
regions to be regularly checked for invalid topology.