[Bug 219655] TCP Connection Limit Error - sonewconn: Listen queue overflow

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Tue May 30 15:10:02 UTC 2017


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219655

Fabian Keil <fk at fabiankeil.de> changed:

           What    |Removed                     |Added
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                 CC|                            |fk at fabiankeil.de

--- Comment #1 from Fabian Keil <fk at fabiankeil.de> ---
At least on vanilla FreeBSD kern.ipc.soacceptqueue merely specifies an upper
limit,
it does not prevent the application from requesting a smaller one.

Many applications use a hardcoded value like 128 without checking
if a higher value would work.

For details see the "listen" and "getsockopt" man pages.

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