[rds-devel] QP error event with RDMA.

Pradeep pradeep at cup.hp.com
Mon Apr 28 11:58:48 PDT 2008


Hello,

I'm hitting an unhandled QP event with RDMA test:
rds-stress -r 10.0.0.54 -s 10.0.0.53 -p 4000 -t1 -d4 -D524288  -T20

RDS/ib: unhandled QP event 3 on connection to 10.0.0.54
RDS/IB: recv completion on 10.0.0.54 had status 5, disconnecting and 
reconnecting

Remote side:
RDS/IB: send completion on 10.0.0.53 had status 12, disconnecting and 
reconnecting

Any idea why RDS is getting QP event 3 (IB_EVENT_QP_ACCESS_ERR)?

Config:
OFED: 
http://www.openfabrics.org/downloads/OFED/ofed-1.3-daily/OFED-1.3-20080408-0623.tgz
Systems: Two Intel(R) Xeon systems.
OS version: Red Hat Enterprise Linux AS release 4
2.6.9-42.0.10.ELsmp #1 SMP Fri Feb 16 17:17:21 EST 2007 i686 i686 i386 
GNU/Linux
IB Hardware: ConnectX HCA (only one port connected).

RDS config:
max_send_wr              128
max_recv_wr             1024
max_unsignaled_bytes 8388608
max_unacked_packets       16

[root at iblp0053 tmp]# rds-info

TCP Connections:
      LocalAddr LPort      RemoteAddr RPort  HdrRemain DataRemain    SentNx
t  ExpectUna    SeenUna

Counters:
              CounterName            Value
               conn_reset                4
   recv_drop_bad_checksum                0
        recv_drop_old_seq                0
        recv_drop_no_sock                2
      recv_drop_dead_sock                0
       recv_deliver_raced                0
           recv_delivered            38479
              recv_queued            38481
     recv_immediate_retry                0
       recv_delayed_retry                0
        recv_ack_required             9478
          recv_rdma_bytes        747110400
         send_queue_empty              121
          send_queue_full                0
      send_sem_contention                0
     send_sem_queue_raced                0
     send_immediate_retry                0
       send_delayed_retry                0
          send_drop_acked                0
        send_ack_required             9443
                send_rdma            19234
          send_rdma_bytes        747110400
       page_remainder_hit            32069
      page_remainder_miss             6412
       cong_update_queued                0
     cong_update_received                1
          cong_send_error                0
        cong_send_blocked                0
         ib_connect_raced                3
   ib_listen_closed_stale                0
            ib_tx_cq_call            52082
           ib_tx_cq_event            67005
          ib_tx_ring_full                0
 ib_tx_sg_mapping_failure                0
            ib_tx_stalled                0
            ib_rx_cq_call            38837
           ib_rx_cq_event            47764
         ib_rx_ring_empty                0
     ib_rx_refill_from_cq            38835
 ib_rx_refill_from_thread                2
        ib_rx_alloc_limit                0
              ib_ack_sent             9287
      ib_ack_send_failure                0
      ib_ack_send_delayed              389
          ib_ack_received             9279
         ib_rdma_mr_alloc              207
          ib_rdma_mr_free                0
          ib_rdma_mr_used            19237
    ib_rdma_mr_pool_flush              186
     ib_rdma_mr_pool_wait                0
     tcp_data_ready_calls                0
    tcp_write_space_calls                0
          tcp_sndbuf_full                0
        tcp_connect_raced                0
  tcp_listen_closed_stale                0

RDS Sockets:
      BoundAddr BPort        ConnAddr CPort     SndBuf     RcvBuf
        0.0.0.0     0         0.0.0.0     0      55296      55296

RDS Connections:
      LocalAddr      RemoteAddr           NextTX           NextRX Flg
      10.0.0.53       10.0.0.54            38484            38484 --C

Receive Message Queue:
      LocalAddr LPort      RemoteAddr RPort              Seq      Bytes

Send Message Queue:
      LocalAddr LPort      RemoteAddr RPort              Seq      Bytes

Retransmit Message Queue:
      LocalAddr LPort      RemoteAddr RPort              Seq      Bytes

[root at iblp0054 ~]# rds-info

TCP Connections:
      LocalAddr LPort      RemoteAddr RPort  HdrRemain DataRemain    
SentNxt  ExpectUna    SeenUna

Counters:
              CounterName            Value
               conn_reset               11
   recv_drop_bad_checksum                0
        recv_drop_old_seq                0
        recv_drop_no_sock                0
      recv_drop_dead_sock                0
       recv_deliver_raced                0
           recv_delivered            38483
              recv_queued            38483
     recv_immediate_retry                0
       recv_delayed_retry                0
        recv_ack_required             9443
          recv_rdma_bytes        747634688
         send_queue_empty              120
          send_queue_full                0
      send_sem_contention                0
     send_sem_queue_raced                0
     send_immediate_retry                0
       send_delayed_retry                0
          send_drop_acked                0
        send_ack_required             9479
                send_rdma            19237
          send_rdma_bytes        748158976
       page_remainder_hit            32072
      page_remainder_miss             6413
       cong_update_queued                0
     cong_update_received                2
          cong_send_error                0
        cong_send_blocked                0
         ib_connect_raced                2
   ib_listen_closed_stale                0
            ib_tx_cq_call            50886
           ib_tx_cq_event            67011
          ib_tx_ring_full                0
 ib_tx_sg_mapping_failure                0
            ib_tx_stalled               14
            ib_rx_cq_call            38579
           ib_rx_cq_event            47978
         ib_rx_ring_empty                2
     ib_rx_refill_from_cq            38579
 ib_rx_refill_from_thread                2
        ib_rx_alloc_limit                0
              ib_ack_sent             9279
      ib_ack_send_failure                0
      ib_ack_send_delayed              542
          ib_ack_received             9287
         ib_rdma_mr_alloc              207
          ib_rdma_mr_free                0
          ib_rdma_mr_used            19238
    ib_rdma_mr_pool_flush              188
     ib_rdma_mr_pool_wait                0
     tcp_data_ready_calls                0
    tcp_write_space_calls                0
          tcp_sndbuf_full                0
        tcp_connect_raced                0
  tcp_listen_closed_stale                0

RDS Sockets:
      BoundAddr BPort        ConnAddr CPort     SndBuf     RcvBuf
        0.0.0.0     0         0.0.0.0     0      55296      55296

RDS Connections:
      LocalAddr      RemoteAddr           NextTX           NextRX Flg
      10.0.0.54       10.0.0.53            38488            38484 --C

Receive Message Queue:
      LocalAddr LPort      RemoteAddr RPort              Seq      Bytes

Send Message Queue:
      LocalAddr LPort      RemoteAddr RPort              Seq      Bytes

Retransmit Message Queue:
      LocalAddr LPort      RemoteAddr RPort              Seq      Bytes


Thanks,
Pradeep



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