r0 = shmget$private(0x0, 0x1000, 0x5400185b, &(0x7f000067a000/0x1000)=nil)
shmat(r0, &(0x7f0000400000/0xc00000)=nil, 0x4000)
mlock2(&(0x7f0000549000/0x4000)=nil, 0x4000, 0x0)