[lustre-discuss] issue in lnet con

Mohr Jr, Richard Frank (Rick Mohr) rmohr at utk.edu
Mon Feb 8 07:24:40 PST 2016

> On Feb 6, 2016, at 10:48 PM, Parag Khuraswar <parag_k at citilindia.com> wrote:
> FATAL: Error inserting lnet (/lib/modules/ Unknown symbol in module, or unknown parameter (see dmesg)

I think this can sometimes happen when the Lustre modules and the Infiniband stack do not match.  For example, if you use pre-built Lustre packages that were compiled for the in-kernel IB support, but you actually install/run a vendor version of OFED.  You should make sure that the Lustre modules were built against the same version of OFED that is running on the system.

Rick Mohr
Senior HPC System Administrator
National Institute for Computational Sciences

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