mbind(&(0x7f0000ffe000/0x1000)=nil, 0x1000, 0x1, 0x0, 0x0, 0x0)
mbind(&(0x7f0000ffc000/0x3000)=nil, 0x3000, 0x1, &(0x7f0000000000), 0x40, 0x0)