mbind(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x4, 0x0, 0x0, 0x0)
mbind(&(0x7f0000fff000/0x1000)=nil, 0x1000, 0x1, &(0x7f0000000000)=0xffffffffffffff01, 0x7ff, 0x0)