[openib-general] uDAPL problem

Steve Smaldone smaldone at cs.rutgers.edu
Mon Oct 16 14:55:03 PDT 2006


Hi,

I have been trying to run dapltest with trunk rev 9717 with linux kernel 
2.6.18 and I get an error.  The error and configuration is shown below.
Basically, the rdma_cm device is not created under /dev/infiniband.  I 
am wondering if this is a known problem and how to solve it.

Thanks,
Steve Smaldone

$ ./dapltest -T S -D IB1
...
DAT Registry: dat_ia_openv (IB1,1:2,0) called
DAT Registry: IA IB1, trying to load library /usr/local/lib/libdapl.so
DAT Registry: dat_registry_add_provider (IB1,1:2,0)
librdmacm: couldn't read ABI version.
librdmacm: assuming: 2
libibverbs: Warning: no userspace device-specific driver found for uverbs0
        driver search path: /usr/local/lib/infiniband
CMA: unable to open /dev/infiniband/rdma_cm
DT_cs_Server: Could not open IB1 (DAT_INTERNAL_ERROR )
DT_cs_Server (IB1):  Exiting.
DAT Registry: Stopped (dat_fini)

My dat.conf:
IB1 u1.2 nonthreadsafe default /usr/local/lib/libdapl.so mv_dapl.1.2 
"hora-1-ib0 0" ""

ifconfig:
ib0       Link encap:UNSPEC  HWaddr 
00-00-00-14-FE-80-00-00-00-00-00-00-00-00-00-00
          inet addr:10.2.2.135  Bcast:10.255.255.255  Mask:255.0.0.0
          inet6 addr: fe80::202:c901:81e:90e1/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:2044  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1 errors:0 dropped:5 overruns:0 carrier:0
          collisions:0 txqueuelen:128
          RX bytes:0 (0.0 b)  TX bytes:68 (68.0 b)

lsmod:
Module                  Size  Used by
ib_ucm                 20612  0
ib_uverbs              40232  1 ib_ucm
rdma_cm                33572  0
ib_cm                  39824  2 ib_ucm,rdma_cm
ib_addr                11524  1 rdma_cm
ib_local_sa            15752  1 rdma_cm
findex                  8576  1 ib_local_sa
ib_ipoib               51144  0
ib_multicast           15940  2 rdma_cm,ib_ipoib
ib_sa                  20004  5 
rdma_cm,ib_cm,ib_local_sa,ib_ipoib,ib_multicast
ib_umad                20016  0
ib_mthca              131236  0
ib_mad                 42272  5 ib_cm,ib_local_sa,ib_sa,ib_umad,ib_mthca
ib_core                52992  11 
ib_ucm,ib_uverbs,rdma_cm,ib_cm,ib_local_sa,ib_ipoib,ib_multicast,ib_sa,ib_umad,ib_mthca,ib_mad

udev rules:
KERNEL="umad*", NAME="infiniband/%k"
KERNEL="issm*", NAME="infiniband/%k"
KERNEL="uverbs*", NAME="infiniband/%k", MODE="0666"
KERNEL="ucm*", NAME="infiniband/%k", MODE="0666"
KERNEL="rdma_cm", NAME="infiniband/%k", MODE="0666"

/dev/infiniband:
issm0  issm1  ucm0  umad0  umad1  uverbs0





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