Watchdog didn't stop at shutdown

[Mr_Ecks]

The topic has been up before, and there is a solution here:

Slightly slower boot and shutdown

To disable watchdog timers (both software and hardware), append nowatchdog to your boot parameters. e.g. sudo nano /etc/default/grub add nowatchdog to the kernel line like so: GRUB_CMDLINE_LINUX_DEFAULT="quiet nowatchdog ..." save [ Ctrl+X ] rebuild grub.cfg: sudo grub-mkconfig -o /boot/grub/grub.cfg reboot