I've been digging around to see about inducing /proc/net/tcp to show 
some "interesting" things for listen sockets (eg backlog depth, its max, 
and dropped connection requests).  While there I've noticed that both 
tcp_v[46]_syn_recv_sock and tcp_v[46]conn_request both check that the 
listen queue is full, but only tcp_v[46]_syn_recv_sock increments some 
mib stats for dropped connection requests.

Is that deliberate, or is that a hole in the stats?

rick jones
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