OpenOnload driver error "insmod: ERROR: could not insert module........Unknown symbol in module"

Question

I'm on Ubuntu 20.04 LTS and wish to install OpenOnload for kernel bypass of NICs.

I followed the instructions here:

https://github.com/Xilinx-CNS/onload/blob/master/DEVELOPING.md

(Ubuntu 20.04 LTS is supported by Onload)

I've built the repo from source and I've just attempted this part:

To load drivers into the kernel:

"$(mmaketool --toppath)/build/$(mmaketool --driverbuild)/driver/linux/load.sh" onload

Unfortunately I get the error:

insmod: ERROR: could not insert module 
onload/build/x86_64_linux-5.15.0-46-generic/driver/linux/sfc_resource.ko: Unknown symbol in module

This seems to be a generic error relating to inserting drivers in to the Linux kernel but I'm not sure how to fix it. I had all the dependencies installed. I've ran this on a bare metal machine and a virtual machine and got the same problem both times.

Can anyone help/try it too?

UPDATE

I checked dmesg | tail dmesg | tail and there is this entry:

init_sfc_resource: ERROR: failed to find syscall table

But still not sure how to fix it

Answer 1

Ran into the same issue 20.04 LTS with 5.13 still works, but 5.15 is not.