prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x0, 0x0, &(0x7f0000001b00))
r0 = msgget$private(0x0, 0x0)
msgctl$IPC_SET(r0, 0x1, &(0x7f0000000140)={{0x0, 0xee00, 0x0, 0xee00}})