mptable(1)

mptable1

Display mp configuration table

Usage

mptable [-dmesg] [-verbose] [-grope] [-help]

Overview

The mptable command finds and analyzes the MP configuration table on an Intel(tm) MP spec capable motherboard. It is useful for debugging an SMP kernel that will not boot, as well as examining the configuration of a system. It can be run with a UniProcessor kernel.

It must be run with gid kmem privileges.

The following options are available:

-dmesg

Include a dmesg dump.

-grope

Look in areas it should not NEED to, use ONLY as a last resort.

-help

Print a usage message and exits.

-verbose

Print extra info.

Releases

76 releases since FreeBSD 3.0-RELEASE; the text changed 37 times.

  1. 3.0–3.3
  2. 3.4–3.5.1
  3. 4.0–4.2
  4. 4.3–4.11
  5. 5.0–5.5
  6. 6.0–6.3
  7. 6.4
  8. 7.0
  9. 7.1
  10. 7.2
  11. 7.3
  12. 7.4
  13. 8.0
  14. 8.1
  15. 8.2
  16. 8.3
  17. 8.4
  18. 9.0
  19. 9.1
  20. 9.2
  21. 9.3
  22. 10.0
  23. 10.1
  24. 10.2
  25. 10.3
  26. 10.4
  27. 11.0
  28. 11.1
  29. 11.2
  30. 11.3
  31. 11.4
  32. 12.0
  33. 12.1
  34. 12.2
  35. 12.3
  36. 12.4
  37. 13.0–13.2
  38. 13.3–16.0

History

The mptable command first appeared in FreeBSD 3.0.

Authors

Steve Passe ⟨[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.