https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=209471
--- Comment #21 from Robert Blayzor <rblay...@inoc.net> ---
This finally showed it's head again...
sonewconn: pcb 0xfffff80001b2bc40: Listen queue overflow: 301 already in queue
awaiting acceptance (25 occurrences)
sonewconn: pcb 0xfffff80001b2bc40: Listen queue overflow: 301 already in queue
awaiting acceptance (28 occurrences)
sonewconn: pcb 0xfffff80001b2bc40: Listen queue overflow: 301 already in queue
awaiting acceptance (25 occurrences)
...
netstat -an | grep CLOSED | wc -l
301
procstat -ta
726 100087 dovecot - 1 120 sleep kqread
61961 100200 dovecot - 3 120 sleep vmf_de
The process is dovecot... and when I see this happen, the state is stuck in
"vmf_de" which is from the patch in Bug 204426
tcpdrop -l -a | tail
tcpdrop 2607:f058:110:2::1:1 4190 2607:f058:110:2::f:0 49170
tcpdrop 2607:f058:110:2::1:1 4190 2607:f058:110:2::f:1 55998
tcpdrop 2607:f058:110:2::1:1 4190 2607:f058:110:2::f:0 47559
tcpdrop 2607:f058:110:2::1:1 4190 2607:f058:110:2::f:1 36319
tcpdrop 2607:f058:110:2::1:1 4190 2607:f058:110:2::f:0 47496
tcpdrop 2607:f058:110:2::1:1 4190 2607:f058:110:2::f:1 46326
tcpdrop 2607:f058:110:2::1:1 4190 2607:f058:110:2::f:0 36871
tcpdrop 2607:f058:110:2::1:1 4190 2607:f058:110:2::f:1 24142
tcpdrop 2607:f058:110:2::1:1 4190 2607:f058:110:2::f:0 7962
tcpdrop 2607:f058:110:2::1:1 4190 2607:f058:110:2::f:1 13402
[~] sudo tcpdrop 2607:f058:110:2::1:1 4190 2607:f058:110:2::f:0 7962
tcpdrop: 2607:f058:110:2::1:1 4190 2607:f058:110:2::f:0 7962: No such process
[~] sudo tcpdrop 2607:f058:110:2::1:1 4190 2607:f058:110:2::f:1 13402
tcpdrop: 2607:f058:110:2::1:1 4190 2607:f058:110:2::f:1 13402: No such process
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