I think I have been in the wrong direction all the time.

The issue is not this warning, but I suppose some kind of sandboxing now in
use in the validation process of Logic X under El Capitan

I suppose you are running some kind of inter app Mutex which is not
available under sandbox AFAIK.

In my case, I open some files on the user HD when the plugin opens.

Given this, if this is really the issue, I am definitely in a bad
position...

and I wonder how any sampler would work...

2015-10-01 9:05 GMT+02:00 Kevin MOLCARD <[email protected]>:

> FYI, we implement this for several years but still needed to implement the
> old Rez stuff to be successfully validated (at least for 10.7).
>
> On 10.11, we do not get the warning message you pasted but our instrument
> are not validated.
>
> Indeed auval is crashing when validating any of our Audio Unit with the
> following message:
> libc++abi.dylib: terminating with uncaught exception of type
> std::__1::system_error: mutex lock failed: Invalid argument
>
> This is shown right after :
> AU VALIDATION SUCCEEDED.
>
> Maybe because of this Rez stuff. I'll give it a try and let you know.
>
> In the meantime, I encourage anybody to fill a bug at bugreport.apple.com
>
>
> On 9/30/15 7:06 PM, Olivier Tristan wrote:
>
> More exactly.
>
> I have never done this
> https://developer.apple.com/library/mac/technotes/tn2276/_index.html
> So this is maybe related
>
> Don't fix what ain't broken as they say.
>
>
>
>
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-- 
Olivier Tristan
Research & Development
www.uvi.net
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