I have configured systemd to use hardware watchdog. My kernel version is 5.10 This is the configuration

RuntimeWatchdogSec=120 in /etc/systemd/system.conf

I can see that the systemd is kicking the hw watchdog and the system is running fine. I need to test if this hw watchdog indeed resets the hardware so I need to make systemd stop kicking it at run time. Is this possible ?

I am not able to kill the systemd process.

1 Answer 1


Attach a debugger to the systemd process. This will pause it until you detach.

# gdb -p 1

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