There may be a way to fix the error about kallsyms_lookup_name here

[tangger2000]

My OS is ubuntu20.04 LTS, I also want to use mpu to make the nvidia-smi in the container output the process id, but because the kernel version of ubuntu20 is too high, compiling mpu fails.
I then went and looked up some information to try to fix this on mpu's code, and then I found a workaround for another project.
xcellerator/linux_kernel_hacking#3
However, I don't know anything about C and I don't have the ability to add this fix to mpu myself.
So could you please, see if this way works? And try to fix it? THX.