watchdog(8)

watchdog8

Watchdog control program

Usage

watchdog [-d] [-t timeout]

Overview

The watchdog utility can be used to control the kernel's watchdog facility.

The -d option enables debugging.

The -t timeout option specifies the desired timeout period in seconds, a value of zero will disable the watchdog. The default timeout is 128 seconds.

Releases

52 releases since FreeBSD 5.3-RELEASE; the text changed 34 times.

  1. 5.3–5.5
  2. 6.0–6.2
  3. 6.3
  4. 6.4
  5. 7.0
  6. 7.1
  7. 7.2
  8. 7.3
  9. 7.4
  10. 8.0
  11. 8.1
  12. 8.2
  13. 8.3
  14. 8.4
  15. 9.0
  16. 9.1
  17. 9.2
  18. 9.3
  19. 10.0
  20. 10.1
  21. 10.2
  22. 10.3
  23. 10.4
  24. 11.0
  25. 11.1
  26. 11.2
  27. 11.3
  28. 11.4
  29. 12.0
  30. 12.1
  31. 12.2
  32. 12.3
  33. 12.4
  34. 13.0–13.2
  35. 13.3–16.0

History

The watchdog utility appeared in FreeBSD 5.1.

Authors

The watchdog utility and manual page were written by Sean Kelly ⟨[email protected]⟩ and Poul-Henning Kamp ⟨[email protected]⟩.

Some contributions made by Jeff Roberson ⟨[email protected]⟩.

From base 16.0-CURRENT-20261027-61c70dc16a79 in FreeBSD 16.0-CURRENT (2026-10-27). Parsed by carta from the page's mdoc source.