mmap(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x4, 0xa031, 0xffffffffffffffff, 0x0)
munlock(&(0x7f0000ffb000/0x4000)=nil, 0x4000)
munmap(&(0x7f0000fec000/0x11000)=nil, 0x11000)
mlock2(&(0x7f0000ffd000/0x2000)=nil, 0x2000, 0x0)