- For all Compulab Intel products, watchdog kernel module name is: iTCO_wdt
- Verify it can be loaded successfully and information about the device appears in dmesg output:
$ sudo modprobe iTCO_wdt
$ dmesg | grep -i iTCO
[ 34.741071] iTCO_vendor_support: vendor-support=0
[ 34.742749] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11
[ 34.742824] iTCO_wdt: Found a Apollo Lake SoC TCO device (Version=5, TCOBASE=0x0460)
[ 34.742993] iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0)
- Install watchdog program, it should run in the background automatically on each system start
$ sudo apt install watchdog
- Modify the following configuration files:
/etc/default/watchdog
change: watchdog_module="none"
to: watchdog_module="iTCO_wdt"
/etc/watchdog.conf
uncomment line: watchdog-device = /dev/watchdog
/lib/systemd/system/watchdog.service
add "WantedBy=default.target" line under [Install] header, as per below:
[Install]
WantedBy=default.target
* NOTE: this a bugfix that required for LinuxMint18.3
- Verify the the driver was loaded automatically:
$ dmesg | grep -i iTCO
- Simulate kernel panic (as root user):
$ su
Password:
$ echo 1 > /proc/sys/kernel/sysrq
$ echo c > /proc/sysrq-trigger
- As a result, the watchdog mechanism should reboot the system within 30 seconds.