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25 lines
1 KiB
Text
25 lines
1 KiB
Text
Linux watchdog timer daemon
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This service periodically writes to /dev/watchdog - in the event
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of it _not_ being able to do so, Linux may reset the system.
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For this to work, a kernel driver for the aformentioned device needs
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to be loaded. The module may be found in:
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/lib/modules/`uname -r`/kernel/drivers/char/watchdog
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It can be configured to try and fix things (such as networking)
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before triggering a reboot. As 'repair.sh' may be able to do.
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See the examples included in /usr/doc/watchdog-5.6/examples
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This package also contains the 'wd_keepalive' program by Marcel Jansen
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which "can be run during critical periods when the normal watcdog
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shouldn't be run. It will read from the same configuration file;
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it will do no checks but will keep writing to the device.
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To enable the watchdog: make sure a kernel module gets loaded for it
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(at boot) such as the 'softdog' or an actual hardware driver...
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Then add the following to rc.local:
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# Start the watchdog timer deamon
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if [ -x /etc/rc.d/rc.watchdog ]; then
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/etc/rc.d/rc.watchdog start
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fi
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