[lustre-discuss] issue in lnet con

[Mohr Jr, Richard Frank (Rick Mohr)]

> On Feb 6, 2016, at 10:48 PM, Parag Khuraswar <parag_k at citilindia.com> wrote:
> 
> FATAL: Error inserting lnet (/lib/modules/2.6.32.504.el6_lustre/extra/kernel/net/lustre/lnet.ko): 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
http://www.nics.tennessee.edu