597598b712
CM PML. The req_mtl structure is cast into a mtl_*_request_structure for each MTL, which is larger than the req_mtl itself. The cast will cause the *_request to overwrite parts of the heavy requests if the req_mtl isn't the *LAST* thing on each structure (hence the comment). This was moved as an optimization at some point, which caused buffer sends to fail... Refs trac:669 This commit was SVN r12871. The following Trac tickets were found above: Ticket 669 --> https://svn.open-mpi.org/trac/ompi/ticket/669