munlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
getsockopt$inet_tcp_TCP_ZEROCOPY_RECEIVE(0xffffffffffffffff, 0x6, 0x23, 0x0, &(0x7f0000000180))
madvise(&(0x7f0000ffd000/0x2000)=nil, 0x2000, 0x12)