ktrace(1) on FreeBSD
The text a0b9507c80cd, as FreeBSD 6.2-RELEASE, FreeBSD 6.1-RELEASE, FreeBSD 6.0-RELEASE shipped it.
enable kernel process tracing
Flags it lists
-
-C -
-a -
-c -
-d -
-f -
-g -
-i -
-p -
-t