To me, it looks like Open MPI in xoob_send_qp_connect() attempts to set the max_dest_rd_atomic attribute in the transition from INIT to RTR, even for XRC_INI QPs. This is illegal, according to the ib_modify_qp_is_ok() function in ib_core. In particular, IBV_QP_MAX_DEST_RD_ATOMIC is not part of either the required nor optional set of attributes for this transition for XRC_INI QPs.
Thxs, Håkon
