Default kmemleak to off

configname: CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF

Linux Kernel Configuration
└─>Kernel hacking
└─>Memory Debugging
└─>Default kmemleak to off
In linux kernel since version 2.6.36 (release Date: 2010-10-20)  
Say Y here to disable kmemleak by default. It can then be enabled
on the command line via kmemleak=on.