Prerequisite
=============
apt-get install gcc-7-plugin-dev
yum install python2-devl
yum install python3-devel
yum install yum-utils
Install kpatch
================
git clone https://github.com/dynup/kpatch.git
cd kpatch
source test/integration/lib.sh
kpatch_dependencies
make -j
make install
Run kpatch on kernel src with patch to be applied
==================================================
1.build kernel from source
2.kpatch-build -j20 nvme.patch -s <kernel_src> -c <kernel_src/.config>
This will create kpatch-nvme.ko
Installing module
==================
kpatch install kpatch-nvme.ko
kpatch list
Loading/unloading kpatch module.
=============================
kpatch load kpatch-nvme.ko
kpatch unload kpatch-nvme.ko
to check build logs- > tail -f /root/.kpatch/build.log
Good Read -> https://blog.kernelcare.com/live-patching-debian-10-linux-kernel-with-kpatch
