Depends how similar. This article was specifically about kernel line number and local variable tracing, which I've only seen Linux do. If you mean general kern

Depends how similar. This article was specifically about kernel line number and local variable tracing, which I've only seen Linux do. If you mean general kernel debugging, then my book on DTrace covers multiple operating systems including FreeBSD, and has around a thousand pages of examples. It would be nice if DTrace could add kernel line number and local variable tracing. Recently I've seen FreeBSD kernel builds where inlining has become more common than I've seen in the past, and missing kernel functions is becoming a bit of a nuisance. It's generally possible to work around it, but it would be nice to just trace lines and variables if needed.