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Subject: [Bug 217637] One TCP connection accepted TWO times
Date: Tue, 21 Mar 2017 03:08:30 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D217637

--- Comment #74 from Mike Karels <karels@freebsd.org> ---
In responding to an earlier comment directed to me, and to the comments sin=
ce:

This connection is dead.  Only an RST and CLOSED state apply.  Data cannot =
be
delivered to the application, which has lost the handle to this connection,=
 and
may not even be alive in some cases.  TCP cannot wait for a FIN, for exampl=
e,
because there may be gigabytes of data to deliver before the FIN, and there=
 is
no where for them to go.

fwiw, I added the original version of this code about 30 years ago.  I beli=
eve
it was in 4.3BSD.  It is still correct.

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