I have seen it before but it was not reproducible. I have now two segfaults in opal_fifo in today's MTT run on master and 2.x:
https://mtt.open-mpi.org/index.php?do_redir=2270 https://mtt.open-mpi.org/index.php?do_redir=2271 The thing that is strange about the MTT output is that MTT does not detect the endianess and bitness correctly. It says on a x86_64 (Fedora 23) system: Endian: unknown Bitness: 32 Endianess is not mentioned in mtt configuration file and bitness is commented out like this: #CN: bitness = 32 which is probably something I copied from another mtt configuration file when initially creating mine. Adrian
