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Subject: [Bug 196061] setsockopt(s, IPPROTO_TCP, TCP_NODELAY,
 ...) returns -1 && errno == 0
Date: Tue, 24 Nov 2015 09:53:38 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D196061

Mari=C3=A1n =C4=8Cern=C3=BD <majo-bugs.freebsd.org@cerny.sk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |majo-bugs.freebsd.org@cerny
                   |                            |.sk

--- Comment #1 from Mari=C3=A1n =C4=8Cern=C3=BD <majo-bugs.freebsd.org@cern=
y.sk> ---
This is probably not be related.

On FreeBSD 9.3 it returns -1 and errno=3D22 (EINVAL) for me in passenger:

Ser/Server.h:655: [ApiServer] Cannot disable Nagle's algorithm on a TCP soc=
ket:
Invalid argument (errno=3D22)

    if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &flag, sizeof(int)) =3D=3D=
 -1
     && errno !=3D ENOPROTOOPT
     && errno !=3D ENOTSUP
     && errno !=3D EXTENSION_EOPNOTSUPP)
    {
        int e =3D errno;
        SKS_WARN("Cannot disable Nagle's algorithm on a TCP socket: " <<
            strerror(e) << " (errno=3D" << e << ")");
    }

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