prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x0, 0x0, &(0x7f0000000000))
pipe(&(0x7f00000000c0)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
vmsplice(r0, 0x0, 0x0, 0x0)