On Jun 7, 2008, at 3:38 PM, Adam Leventhal wrote:

> I'm pleased to pass along news that the Mac OS X DTrace port has been
> updated
> in 10.5.3 to fix the issue that caused timer based probes not to fire
> in the
> presence of certain untraceable applications.

Thanks for the mention!

In
>
>   http://blogs.sun.com/ahl/entry/apple_updates_dtrace

you write:

>> "For the Apple folks: I'd argue that revealing the name of  
>> otherwise untraceable processes is no more transparent than what  
>> Activity Monitor provides — could I have that please?"


Let's see what we can do. To cover this issue I've filed:
<rdar://problem/5996285> DTrace: restore execname and pid lossage when  
P_LNOATTACH is asserted

and:

>> "Also, I'm not sure if this has always been true, but the ustack()  
>> action doesn't seem to work from the profile action"


We encountered this some time ago. It's a very deep constraint on our  
ability to do copyin() on the interrupt stack. I'd like to fix this,  
but it will be challenging on a number of fronts.
<rdar://problem/5369033> DTrace: ustack() action fails under profile  
and tick probes

SCP
--
Steve Peters
[EMAIL PROTECTED]

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