Difference between revisions of "Linux Mint: Watchdog configuration"
From fit-PC wiki
Line 17: | Line 17: | ||
change: watchdog_module="none" | change: watchdog_module="none" | ||
to: watchdog_module="iTCO_wdt" | to: watchdog_module="iTCO_wdt" | ||
+ | |||
+ | /etc/watchdog.conf | ||
+ | uncomment line: watchdog-device = /dev/watchdog | ||
/lib/systemd/system/watchdog.service | /lib/systemd/system/watchdog.service | ||
Line 24: | Line 27: | ||
WantedBy=default.target | WantedBy=default.target | ||
− | * NOTE: this a bugfix that required for LinuxMint18.3 | + | * NOTE: this a bugfix that required for LinuxMint18.3 |
− | + | ||
* Reboot | * Reboot | ||
Line 35: | Line 38: | ||
$ su | $ su | ||
Password: | Password: | ||
− | $ echo 1 > /proc/sys/kernel/sysrq | + | $ echo 1 > /proc/sys/kernel/sysrq |
$ echo c > /proc/sysrq-trigger | $ echo c > /proc/sysrq-trigger | ||
* As a result, the watchdog mechanism should reboot the system within 30 seconds. | * As a result, the watchdog mechanism should reboot the system within 30 seconds. |
Revision as of 13:08, 16 April 2018
- 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
- Reboot
- Verify the the driver is 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.