1,437 bytes added,
09:37, 22 February 2018
==''' Watchdog Linux configuration guide '''==
1. Find out watchdog kernel module name for your platform, possibly using using google
*For all Compulab Intel products, it should be named - '''"iTCO_wdt"'''
2. Verify it can be loaded successfully information on the device appears in dmesg output
'''$ sudo modprobe iTCO_wdt'''
'''$ dmesg | tail'''
:output:
iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11
iTCO_wdt: Found a Intel PCH TCO device (Version=4, TCOBASE=0x0400)
iTCO_wdt: initialized. heartbeat=60 sec (nowayout=0)
3. Install watchdog program, it should run in the background automatically on each system start
:'''$ sudo apt install watchdog'''
4. Modify the following configuration files:
:'''/etc/watchdog.conf'''
uncomment line: watchdog-device = /dev/watchdog
:'''/etc/default/watchdog'''
change: watchdog_module="none"
to: watchdog_module=" iTCO_wdt"
:'''/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.
5. Reboot
6. Verify the the driver is loaded automatically:
:'''$ dmesg | grep wdt'''
7. Simulate kernel panic (as root user):
$ su
Password:
$ echo c > /proc/sysrq-trigger
*As a result, the watchdog mechanism should reboot the system within 60 seconds.