Hi All   The "real time" kernel patches are included in Igor's Armbian build tools, but are disabled by default.   Enabling them are simple. (Thanks Igor)   Build "real time" kernel images by doing the following:   refer to https://github.com/igorpecovnik/lib Execution apt-get -y install git git clone https://github.com/igorpecovnik/lib--depth 1 cp lib/compile.sh . mv ./lib/patch/kernel/sun7i-default/0014-patch-3.4.108-rt136.patch.disabled ./lib/patch/kernel/sun7i-default/0014-patch