munlock(&(0x7f0000ffc000/0x4000)=nil, 0x4000)
mbind(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x1, 0x0, 0x0, 0x0)
mlock(&(0x7f0000ffc000/0x1000)=nil, 0x1000)