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UNTITLED                             LOCAL                            UNTITLED

NAME
     watchdog - Software watchdog

SYNOPSIS
     options WATCHDOG

DESCRIPTION
     watchdog is a set of checks and routines which allow the implementation
     of a software watchdog solution.

     The user interface for watchdog is implemented via a trio of sysctl OIDs.
     When debug.watchdog.enabled is set to a positive value, watchdog timeout
     checks are performed.  In order to keep the watchdog from triggering,
     debug.watchdog.reset must be accessed, by reading or writing, within
     every debug.watchdog.timeout seconds.  Failure to keep the watchdog
     updated will result in the kernel outputting interrupt counts,
     backtraces, and then attempting to enter ddb(9).

SEE ALSO
     sysctl(8), watchdogd(8)

HISTORY
     The watchdog code first appeared in FreeBSD 5.1.

AUTHORS
     The watchdog code and manual page were written by Sean Kelly
     <smkelly@FreeBSD.org>.  Some contributions were made by Jeff Roberson
     <jeff@FreeBSD.org>.

FreeBSD 11.0-PRERELEASE          June 25, 2003         FreeBSD 11.0-PRERELEASE

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | HISTORY | AUTHORS

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