IB not configured properly on node1

IB related seg fault in [mca_pml_ob1_recv_frag_callback_match](https://bitbucket.org/icldistcomp/ulfm2/src/1ca6f38ea8a3d0d26efd4a7e755c7edc17bc8e47/ompi/mca/pml/ob1/pml_ob1_recvfrag.c?at=ulfm#pml_ob1_recvfrag.c-432) (always) if a process on **node 1** is killed.