From owner-freebsd-questions@freebsd.org  Mon Mar  6 19:39:40 2017
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Date: Mon, 06 Mar 2017 20:39:35 +0100
From: Harry Schmalzbauer <freebsd@omnilan.de>
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Subject: procstat(1) [-f], proto=stream without addresses
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 Hello,

I'm in foreign waters and try gather debugging info.
One thing I noticed is that procstst(1) doesn't show any addresses for
my evil process.
Excerpt:

USER COMMAND PID FD PROTO LOCAL ADDRESS FOREIGN ADDRESS
squid negotiate_ 597 1 stream -> ??
squid negotiate_ 596 0 stream -> ??
squid negotiate_ 596 1 stream -> ??
squid negotiate_ 595 0 stream -> ??
… (lots more snipped)
squid squid 586 10 stream -> ??
squid squid 586 12 stream -> ??
squid squid 586 14 stream -> ??
squid squid 586 16 stream -> ??
squid squid 586 18 stream -> ??
… (lots more snipped)

Simple question: Is this a "legal" state?
Any hints for further readings on this topic highly appreciated!

Thanks,

-harry