Kernel modules

Jason Bacon bacon4000 at
Mon Mar 18 13:56:50 UTC 2019

On 3/18/19 7:55 AM, Hans Petter Selasky wrote:
> On 3/18/19 1:32 PM, Jason Bacon wrote:
>> Anyone using the kernel modules lately?
>> After building per the instructions on the wiki 
>> (
>> <<<ROOT at unixdev.ceas>>> /home/bacon 1005 # kldload ibcore
>> kldload: an error occurred while loading module ibcore. Please check 
>> dmesg(8) for more details.
>> dmesg:
>> link_elf_obj: symbol if_index undefined
>> linker_load_file: /boot/modules/ibcore.ko - unsupported file type
> Hi,
> You built the KMODs out of the kernel? Try adding 
> DEBUG_FLAGS="-DVIMAGE=1" to your out of tree build.
> --HPS

I used the script for building kernel modules (which I wrote and posted 
at a few years ago, based on advice 
from a Mellanox developer at the time).  This will show exactly what I did.

Hoping there's a simple fix for this.

In theory, it should now be possible to enable IB support on a stock 
FreeBSD system in a few minutes, since we should be able to use loadable 
modules instead of doing a buildkernel, and IB support is now included 
in the base, making buildworld unnecessary:

This is a big step toward enabling the use of stock FreeBSD systems in HPC.

I had successfully used the IB stack before by loading the modules and 
doing a buildworld.



Earth is a beta site.

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