[ewg] bug 1918 - openmpi broken due to rdma-cm changes

[Steve Wise]

I just opened 1918.  The latest ofed-1.5.1 rdma-cm is allowing binds to 
127.0.0.1.  This is no-no for devices that don't support hw loopback...

OpenMPI uses rdma_bind_addr() to figure out which ip addresses are valid 
for which IB devices.   This logic is now broken.  Regardless of whether 
OpenMPI should use another method for determining which IP address 
belong to which interfaces, we should probably rethink whether we're 
breaking rdma-cm semantics in a bad way on a point release.


Steve.