QLogic OFED+ Host Software User Guide, Rev. B

F–Troubleshooting
Kernel and Initialization Issues
InfiniPath ib_qib Initialization Failure
There may be cases where ib_qib was not properly initialized. Symptoms of this
may show up in error messages from an MPI job or another program. Here is a
sample command and error message:
$ mpirun -np 2 -m ~/tmp/mbu13 osu_latency
:ipath_userinit: assign_port command failed: Network is
down
:can’t open /dev/ipath, network down
This will be followed by messages of this type after 60 seconds:
MPIRUN: 1 rank has not yet exited 60 seconds
after rank 0 (node ) exited without reaching
MPI_Finalize().
MPIRUN:Waiting at most another 60 seconds for
the remaining ranks to do a clean shutdown before terminating 1
node processes.
If this error appears, check to see if the InfiniPath driver is loaded by typing:
$ lsmod | grep ib_qib
If no output is displayed, the driver did not load for some reason. In this case, try
the following commands (as root):
# modprobe -v ib_qib
# lsmod | grep ib_qib
# dmesg | grep -i ib_qib | tail -25
The output will indicate whether the driver has loaded. Printing out messages
using dmesg may help to locate any problems with ib_qib.
If the driver loaded, but MPI or other programs are not working, check to see if
problems were detected during the driver and QLogic hardware initialization with
the command:
$ dmesg | grep -i ib_qib
This command may generate more than one screen of output.
Also, check the link status with the commands:
$ cat /sys/class/infiniband/ipath*/device/status_str
These commands are normally executed by the ipathbug-helper script, but
running them separately may help locate the problem.
See also “status_str” on page I-19 and “ipath_checkout” on page I-10.
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