[ewg] ibv_create_qp fails with enomem

[Ker Can]

We updated to MLNX_OFED_LINUX-1.5.3-3.0.0 from OFED-1.5.2_1  recently and we're running into issues where we get a ENOMEM error from ibv_create_qp(). Earlier with this OFED version we were running into a ENOMEM with ibv_reg_mr() but that was resolved by setting log_num_mtt to 24 as described in this link  http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&dlc=en&docname=c03113904
All the other settings in /sys/module/mlx4_core/parameters are the default values.   The node itself has 96GB of memory we're nowhere close to using that. Is there any way to figure out whats going on ?

thanks
K. Can

here's the output from ibv_devinfo -v:

hca_id: mlx4_0
        transport:                      InfiniBand (0)
        fw_ver:                         2.9.1000
        node_guid:                      0002:c903:004b:d5e6
        sys_image_guid:                 0002:c903:004b:d5e9
        vendor_id:                      0x02c9
        vendor_part_id:                 26428
        hw_ver:                         0xB0
        board_id:                       HP_0180000009
        phys_port_cnt:                  2
        max_mr_size:                    0xffffffffffffffff
        page_size_cap:                  0xfffffe00
        max_qp:                         260032
        max_qp_wr:                      16351
        device_cap_flags:               0x007c9c76
        max_sge:                        32
        max_sge_rd:                     0
        max_cq:                         65408
        max_cqe:                        4194303
        max_mr:                         524272
        max_pd:                         32764
        max_qp_rd_atom:                 16
        max_ee_rd_atom:                 0
        max_res_rd_atom:                4160512
        max_qp_init_rd_atom:            128
        max_ee_init_rd_atom:            0
        atomic_cap:                     ATOMIC_HCA (1)
        max_ee:                         0
        max_rdd:                        0
        max_mw:                         0
        max_raw_ipv6_qp:                0
        max_raw_ethy_qp:                2
        max_mcast_grp:                  8192
        max_mcast_qp_attach:            120
        max_total_mcast_qp_attach:      983040
        max_ah:                         0
        max_fmr:                        0
        max_srq:                        65472
        max_srq_wr:                     16383
        max_srq_sge:                    31
        max_pkeys:                      128
        local_ca_ack_delay:             15
                port:   1
                        state:                  PORT_ACTIVE (4)
                        max_mtu:                2048 (4)
                        active_mtu:             2048 (4)
                        sm_lid:                 9
                        port_lid:               311
                        port_lmc:               0x00
                        link_layer:             IB
                        max_msg_sz:             0x40000000
                        port_cap_flags:         0x02510868
                        max_vl_num:             8 (4)
                        bad_pkey_cntr:          0x0
                        qkey_viol_cntr:         0x0
                        sm_sl:                  0
                        pkey_tbl_len:           128
                        gid_tbl_len:            128
                        subnet_timeout:         18
                        init_type_reply:        0
                        active_width:           4X (2)
                        active_speed:           10.0 Gbps (4)
                        phys_state:             LINK_UP (5)
                        GID[  0]:               fe80:0000:0000:0000:0002:c903:004b:d5e7

                port:   2
                        state:                  PORT_ACTIVE (4)
                        max_mtu:                2048 (4)
                        active_mtu:             2048 (4)
                        sm_lid:                 9
                        port_lid:               158
                        port_lmc:               0x00
                        link_layer:             IB
                        max_msg_sz:             0x40000000
                        port_cap_flags:         0x02510868
                        max_vl_num:             8 (4)
                        bad_pkey_cntr:          0x0
                        qkey_viol_cntr:         0x0
                        sm_sl:                  0
                        pkey_tbl_len:           128
                        gid_tbl_len:            128
                        subnet_timeout:         18
                        init_type_reply:        0
                        active_width:           4X (2)
                        active_speed:           10.0 Gbps (4)
                        phys_state:             LINK_UP (5)
                        GID[  0]:               fe80:0000:0000:0000:0002:c903:004b:d5e8
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openfabrics.org/pipermail/ewg/attachments/20120323/ed0a7b17/attachment.html>