Igor: Created page with "CL-SOM-iMX7 watchdog function is implemented with iMX7 SoC built-in Watchdog Timer (WDOG1). By default watchdog is not configured in this Debian rootfs.

 root@cl-debian:~..."

2022-07-06T13:30:54Z

Created page with "CL-SOM-iMX7 watchdog function is implemented with iMX7 SoC built-in Watchdog Timer (WDOG1). By default watchdog is not configured in this Debian rootfs. <pre> root@cl-debian:~..."

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CL-SOM-iMX7 watchdog function is implemented with iMX7 SoC built-in Watchdog Timer (WDOG1). By default watchdog is not configured in this Debian rootfs.
<pre>
root@cl-debian:~# systemctl show | grep -i watchdog
RuntimeWatchdogUSec=0
ShutdownWatchdogUSec=10min
ServiceWatchdogs=yes
</pre>

The value '''RuntimeWatchdogUSec=0''' means watchdog logic is disabled: no watchdog device is opened, configured, or pinged.<br>
Any non-zero value enables it. Please refer to [https://manpages.debian.org/testing/systemd/systemd-system.conf.5.en.html systemd-system.conf] manual for more details.

==== Watchdog configuration ====
Edit ''/etc/systemd/system.conf'' file to configure watchdog related parameters, in particular '''RuntimeWatchdogSec''' and '''ShutdownWatchdogSec'''.

==== Watchdog testing ====
Run the following command to simulate kernel panic:
<pre>
root@cl-debian:~# echo "c" > /proc/sysrq-trigger
</pre>
As a result, the watchdog is not fed and the system reboots after per-configured timeout.

Transclusion: Debian: Watchdog - Revision history

Igor: Created page with "CL-SOM-iMX7 watchdog function is implemented with iMX7 SoC built-in Watchdog Timer (WDOG1). By default watchdog is not configured in this Debian rootfs.
root@cl-debian:~..."