mbind(&(0x7f0000ff1000/0xf000)=nil, 0xf000, 0x1, 0x0, 0x0, 0x0)
mlock2(&(0x7f0000ffd000/0x2000)=nil, 0x2000, 0x1)
munlock(&(0x7f0000ffb000/0x4000)=nil, 0x4000)