There is an argument being passed to the kernel, “isolcpus=1-2
” doing this (check “cat /proc/cmdline
”). You can remove or disable the isolcpus
to prevent that behavior.
There is more than one way to achieve this, and probably editing “/boot/extlinux/extlinux.conf
” is the simplest way (although there may be people may need to edit the device tree). See: