Issue #4211 has been updated by Markus Roberts.

Priority changed from Normal to High
Target version changed from queued to 2.6.0

Putting a finer point on my unease; the fix we found resolves the failure 
(trying to yield with no block) but it begs the question of actual thread 
safety.  Consider:

For the problem to manifest, it would have had to hit the case where the owner 
was :another_thread at least once; and then would have had (on recursion) to 
have hit the case where the owner was :nobody and yet 
*[email protected]?(file) was false.*  So did the other thread fail to load 
it, or fail to update @loaded, or?


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Refactor #4211: Investigate the changes made in the type_loader extraction
http://projects.puppetlabs.com/issues/4211

Author: Markus Roberts
Status: Investigating
Priority: High
Assigned to: Markus Roberts
Category: threading
Target version: 2.6.0
Affected version: 2.6.0rc1
Branch: 


There were a number of structural changes made in the type_loader extraction; 
one of them caused multi-threaded loading to fail outright; the others ought to 
be examined in more detail.



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