perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0)
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
r1 = dup(r0)
setsockopt$inet6_tcp_int(r1, 0x6, 0x11, &(0x7f0000000280), 0x4)