r0 = shmget$private(0x0, 0x2000, 0x1800, &(0x7f0000d62000/0x2000)=nil)
shmat(r0, &(0x7f0000400000/0xc00000)=nil, 0x5000)
munmap(&(0x7f000042b000/0x4000)=nil, 0x4000)