[Bug 217637] One TCP connection accepted TWO times

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Mon Mar 20 21:00:39 UTC 2017


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=217637

--- Comment #69 from slw at zxy.spb.ru ---
(In reply to Michael Tuexen from comment #68)

> Hmm. My understanding is that TCP provides a reliable bi-directional byte-stream.
> This means that no user data is lost in any of the two directions.

"Lost" in this context is "not delivered to remote IP stack". Not application,
IP stack.
Remote system ACK data after place in system buffer, not after reading by
application.
I.e. while system can accept data and generate ACK -- all ok. Data delivered.

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