mmap(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x0, 0x5e033, 0xffffffffffffffff, 0x0)
mremap(&(0x7f0000001000/0x2000)=nil, 0x2000, 0x2000, 0x3, &(0x7f0000ffd000/0x2000)=nil)