KTR_SPAREx

[Ryan Stone]

On Thu, Jun 7, 2012 at 4:09 PM, Alexander Leidinger
<Alexander at leidinger.net> wrote:
> How many of them need to run very early so that not enough
> kernel infrastructure is available to run dtrace (can we run dtrace
> scripts very early during boot (when enough kernel infrastructure is
> available, before anything in userland starts) like in Solaris)?

We don't currently have boot-time DTrace in FreeBSD.  We also don't
have post mortem DTrace (ie the equivalent of ktrdump -m).

However, I would suspect that most of the cases in the tree where
drivers have been checked in using KTR_SPARE could be replaced by
DTrace.