Created attachment 860174 [details]
dmesg output

When running fabtest for libfabric I get the following segmentation fault: 

fi_rdm_atomic:6436 terminated with signal 11 at PC=7f6d3d79b088
SP=7ffd760d0600.  Backtrace:
      /lib64/libfabric.so.1(+0x36088)[0x7f6d3d79b088]
      /lib64/libfabric.so.1(+0xcb821)[0x7f6d3d830821]
      /lib64/libfabric.so.1(+0xcc17b)[0x7f6d3d83117b]
      /lib64/libfabric.so.1(+0xcc2f1)[0x7f6d3d8312f1]
      /lib64/libfabric.so.1(+0x416bd)[0x7f6d3d7a66bd]
      /lib64/libfabric.so.1(+0x40b4e)[0x7f6d3d7a5b4e]
      fi_rdm_atomic(+0x7242)[0x55b25295e242]
      fi_rdm_atomic(+0x8144)[0x55b25295f144]
      fi_rdm_atomic(+0x8b3e)[0x55b25295fb3e]
      fi_rdm_atomic(+0x3a81)[0x55b25295aa81]
      /lib64/libc.so.6(+0x405b0)[0x7f6d3d5735b0]
      /lib64/libc.so.6(__libc_start_main+0x8b)[0x7f6d3d573679]
      fi_rdm_atomic(+0x4a85)[0x55b25295ba85]


The hardware used are two Mellanox Connect-X5 with a back to back connection
without a switch. 

Please tell me if you need anything else.