Hi,   just installed Armbian 5.38 mainline (both debian server  or Ubuntu server fresh installation).   There are two processs eating cpu (kworker), and I read some other users have the same issue, but there is a solution?   Other problem: I use this board with Bluetooth dongle to monitor my solar plant. Sometimes Bluetooth dongle disappear from lsusb or hcitool scan tell me device is busy with no reason,   just unplug and reconnect usb dongle and all rest