To solve the problem of “failed to load vmmr0. R0” (Verr) of VirtualBox under Mac OS X_ SUPLIB_ WORLD_ Writable) “error

on a MAC will prompt

when starting with VirtualBox

“Failed to load VMMR0. R0 (VERR_SUPLIB_WORLD_WRITABLE)” error

is also to see a foreigner’s post just know that the original can be modified by permission to solve

so it’s up here for a record

solution: 

#sudo chmod 755 /Applications 
#sudo chmod 755 /Applications/Virtualbox.app