WATCHDOG(4) Kernel Interfaces Manual WATCHDOG(4) 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 at- tempting 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 5.2.1 June 25, 2003 WATCHDOG(4)
Want to link to this manual page? Use this URL:
<https://man.FreeBSD.org/cgi/man.cgi?query=watchdog&sektion=4&manpath=FreeBSD+5.2.1-RELEASE>