Fix an issue with extremely large data identified by tjb900. #2774
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Due to the conversion from ssize_t to int we were losing bytes, and ended up writing outside the receiver buffer. Similarly on the send, due to the conversion to a lesser type, we could missinterpret the end of the fragment. Fixes open-mpi#2750 Signed-off-by: Howard Pritchard <howardp@lanl.gov> (cherry picked from commit 999d497)
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jsquyres
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Due to the conversion from ssize_t to int we were losing bytes, and
ended up writing outside the receiver buffer. Similarly on the send,
due to the conversion to a lesser type, we could missinterpret the
end of the fragment.
Fixes #2750
No corresponding PR for master. This was a direct-inject-into-master
commit.
(cherry picked from commit 999d497)