Hi, I'm running the ibv_rc_pingpong example and I notice as as rx-depth increases the QP create fails, eg at 50k. My understanding is this variable controls the number of RECV WR that will be posted in advance before SEND WRs are posted. Is there a limitation on the queue size (the size is unit32_t) and if so why ? Also is there a way around it ? Regards Dimitris