munmap(&(0x7f0000ffd000/0x2000)=nil, 0x2000)
mlock(&(0x7f0000ff9000/0x3000)=nil, 0x3000)
mbind(&(0x7f0000ffa000/0x4000)=nil, 0x4000, 0x1, 0x0, 0x0, 0x3)