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| Both sides previous revision Previous revision Next revision | Previous revision | ||
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en:odroid_linux_watchdog [2015/08/31 14:23] odroid [Start Watchdog Service and Verify] |
en:odroid_linux_watchdog [2022/01/02 22:39] (current) |
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| ===== Test Watchdog module ===== | ===== Test Watchdog module ===== | ||
| + | <WRAP center round important 100%> | ||
| + | Watchdog driver s3c2410_wdt is configurable for Odroid XU3/XU4. | ||
| + | </WRAP> | ||
| <code> | <code> | ||
| # sudo modprobe s3c2410_wdt | # sudo modprobe s3c2410_wdt | ||
| Line 56: | Line 59: | ||
| sudo mkdir -p /var/log/watchdog | sudo mkdir -p /var/log/watchdog | ||
| </code> | </code> | ||
| - | ===== Watchdog demon configuration files ===== | ||
| - | **Note: that Watchdog drivers should not be loaded automatically, but only if a watchdog daemon is installed. Unless watchdog will activate during boot and system will restart.** | ||
| - | |||
| - | In order to activate the watchdog driver, remove or comment out the line of the driver name. For ODROID-XU3 or ODROID-XU4, the driver name is **s3c2410_wdt**. | ||
| + | Remove the watchdog module from black list. | ||
| + | **/etc/modprobe.d/blacklist-watchdog.conf** | ||
| <code> | <code> | ||
| - | $ cat /etc/modprobe.d/blacklist-watchdog.conf | + | #blacklist s3c2410_wdt |
| - | blacklist pc87413_wdt | + | |
| - | blacklist pcwd | + | |
| - | blacklist pcwd_pci | + | |
| - | blacklist pcwd_usb | + | |
| - | # blacklist s3c2410_wdt | + | |
| - | blacklist sa1100_wdt | + | |
| - | blacklist sbc60xxwdt | + | |
| - | blacklist sbc7240_wdt | + | |
| - | blacklist sb8360 | + | |
| - | blacklist sc1200wdt | + | |
| </code> | </code> | ||
| + | Append the default watchdog configuration. | ||
| + | **/etc/default/watchdog** | ||
| <code> | <code> | ||
| # Start watchdog at boot time? 0 or 1 | # Start watchdog at boot time? 0 or 1 | ||
| Line 81: | Line 74: | ||
| run_wd_keepalive=1 | run_wd_keepalive=1 | ||
| # Load module before starting watchdog | # Load module before starting watchdog | ||
| - | watchdog_module="s3c2410_wdt" | + | watchdog_module=s3c2410_wdt |
| # Specify additional watchdog options here (see manpage). | # Specify additional watchdog options here (see manpage). | ||
| watchdog_options="-s -v -c /etc/watchdog.conf" | watchdog_options="-s -v -c /etc/watchdog.conf" | ||
| - | # Set run_wd_keepalive to 1 to start wd_keepalive after stopping watchdog or 0 | + | |
| - | # to disable it. Running it is the default. | + | |
| - | run_wd_keepalive=1 | + | |
| </code> | </code> | ||
| + | |||
| + | ===== Watchdog demon configuration files ===== | ||
| + | **Note: Watchdog drivers start automatically as it's buildin, but only if a watchdog daemon to configure the times.** | ||
| You need to edit the **/etc/watchdog.conf** file to un-comment and so actually use the **/dev/watchdog** device access to the module. Otherwise the watchdog will not use the hardware and rely only on its internal code to soft-reboot a broken machine | You need to edit the **/etc/watchdog.conf** file to un-comment and so actually use the **/dev/watchdog** device access to the module. Otherwise the watchdog will not use the hardware and rely only on its internal code to soft-reboot a broken machine | ||
| Line 130: | Line 124: | ||
| # This greatly decreases the chance that watchdog won't be scheduled before | # This greatly decreases the chance that watchdog won't be scheduled before | ||
| # your machine is really loaded | # your machine is really loaded | ||
| - | realtime = yes | + | #realtime = yes |
| - | priority = 1 | + | #priority = 1 |
| # Check if rsyslogd is still running by enabling the following line | # Check if rsyslogd is still running by enabling the following line | ||
