Is there any ordinary/intended code path execution case, where new TCP
connections would not be received by their bound processes anymore?

(as in, on all the system suddenly sshd/httpd/smtpd/etc.etc. do not receive
connections made by ssh localhost/telnet localhost 22/telnet localhost 25
etc. but return connection reset by peer, connection refused or just
nothing/blocks)

For instance, is there
 * Some queue that when full would have this effect, or
 * Some malloc() call that could fail in a system-global systemic way if an
application's resident memory quota is full?

Thanks,
Mikael

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