On Jan 17, 2008, at 2:09 PM, Wincent Colaiuta wrote:

> I'd like to use DTrace on Leopard to do some profiling of a Ruby app
> but I'm finding that any script that uses the "object-free" probe
> eventually leads to a segfault.

[snip]

> Needless to say, I can't run the application that I'd like to profile
> either. The same crashes occur when trying to use the "object-free"
> probe from inside Apple's Instruments GUI.
>
> Can anybody else repro this or is there something fishy with my
> system?
>
> Cheers,
> Wincent

I can reproduce it every time. Happens without fail.

Kind of makes it useless for watching object creation and deletion,  
huh? :)

Have you had any luck getting it to work?

-Dane