dtrace_fbt(4) on FreeBSD
The text c80df12beb3e, as FreeBSD 16.0-CURRENT (2026-10-27), FreeBSD 15.1-RELEASE, FreeBSD 15.0-RELEASE, FreeBSD 14.5-RELEASE, FreeBSD 14.4-RELEASE shipped it. The page shows this text now.
a DTrace provider for dynamic kernel tracing based on function boundaries