New DTrace source snapshot

John Birrell jb at
Sat Feb 16 23:42:47 UTC 2008

On Sun, Feb 17, 2008 at 12:33:57AM +0200, Andrew Pogrebennyk wrote:
> Snapshot compiled well for me on i386. However
> during boot with DTrace I am getting the following tracebacks:
> GEOM_LABEL: Label for provider acd0 is iso9660/FreeBSD_Install.
> WARNING: WITNESS option enabled, expect reduced performance.
> lock order reversal:

The lock order reversal warnings are a fault with current at the
moment. If I had my way the cause would be backed out until there
is a solution. I understand that it is a witness improvment that
has caused the warnings to start appearing.... meaning that the
change has exposed an existing problem that wasn't warned obut

They certainly aren't DTrace change specific.

> sh*:::line
> {
>         @lines[pid, uid, copyinstr(arg0)] = count();
> }

There is no sh provider yet.

John Birrell

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