root@localhost:/home/user# insmod /usr/local/dpdk/rte_kni.ko lo_mode=lo_mode_fifo carrier=on
insmod: ERROR: could not insert module /usr/local/dpdk/rte_kni.ko: Invalid module format
Please use Linux Kernel and Ubuntu rootfs filesystem from the same LSDK.
I verified the following command, there is no problem in LSDK 21.08.
$ insmod /usr/local/dpdk/rte_kni.ko lo_mode=lo_mode_fifo carrier=on