[issue12364] Timeout (1 hour) in test_concurrent_futures.tearDown() on sparc solaris10 gcc 3.x

[STINNER Victor]

STINNER Victor <victor.stinner at haypocalc.com> added the comment:

Connection._send_bytes() has a comment about broken pipes:

    def _send_bytes(self, buf):
        # For wire compatibility with 3.2 and lower
        n = len(buf)
        self._send(struct.pack("=i", len(buf)))
        # The condition is necessary to avoid "broken pipe" errors
        # when sending a 0-length buffer if the other end closed the pipe.
        if n > 0:
            self._send(buf)

But the OSError(32, "Broken pipe") occurs on sending the buffer size (a chunk of 4 bytes: self._send(struct.pack("=i", len(buf)))), not on sending the buffer content.

See also maybe the (closed) issue #9205: Parent process hanging in multiprocessing if children terminate unexpectedly

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<http://bugs.python.org/issue12364>
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