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C – Troubleshooting
System Administration Troubleshooting
C-12 IB6054601-00 D
Q
C.5
OpenFabrics Issues
This section covers items related to OpenFabrics, including OpenSM.
C.5.1
Stop OpenSM Before Stopping/Restarting InfiniPath
OpenSM must be stopped before stopping or restarting InfiniPath. If not, error
messages such as the following will occur:
# /etc/init.d/infinipath stop
Unloading infiniband modules: sdp cm umad uverbs ipoib sa ipath
mad coreFATAL:Module ib_umad is in use.
Unloading infinipath modules FATAL: Module ib_ipath is in use.
[FAILED]
C.5.2
Load and Configure IPoIB Before Loading SDP
SDP will generate "Connection Refused" errors if it is loaded before IPoIB has been
loaded and configured. Loading and configuring IPoIB first should solve the
problem.
C.5.3
Set $IBPATH for OpenFabrics Scripts
The environment variable $IBPATH should be set to /usr/bin. If this has not been
set, or if you have it set to a location other than the installed location, you may see
error messages similar to this when running some OpenFabrics scripts:
/usr/bin/ibhosts: line 30: /usr/local/bin/ibnetdiscover: No such
file or directory
For the OpenFabrics commands supplied with this InfiniPath release, you should
set the variable (if it has not been set already), to
/usr/bin as follows:
$ export IBPATH=/usr/bin
C.6
System Administration Troubleshooting
The following section gives details on locating problems related to system
administration.