shmat(0x0, &(0x7f0000ffb000/0x2000)=nil, 0x4000)
munmap(&(0x7f0000ffe000/0x1000)=nil, 0x1000)
remap_file_pages(&(0x7f0000ffd000/0x3000)=nil, 0x3000, 0x0, 0x0, 0x0)