#11935: Make parent/element classes independent of base rings
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       Reporter:  SimonKing                                      |         
Owner:              
           Type:  enhancement                                    |        
Status:  needs_review
       Priority:  major                                          |     
Milestone:  sage-5.0    
      Component:  categories                                     |    
Resolution:              
       Keywords:  parent class, element class, category          |   Work 
issues:              
Report Upstream:  N/A                                            |     
Reviewers:              
        Authors:  Simon King                                     |     Merged 
in:              
   Dependencies:  #9138, #11900, #11943, #12875, #12876, #12877  |      
Stopgaps:              
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Comment (by SimonKing):

 Concerning the glibc problem: I made no progress in tracking it down. I
 just know: When I trace all Python function calls then the problem
 vanishes, and when I temporarily disable garbage collection then it
 vanishes as well.

 Hence, probably there is some object that is deallocated too early, which
 makes me wonder how it is related with the memleak fixes from #715, #11521
 and #12215.

 Nicolas, can you confirm the problem? You didn't mention it yet.

 Also, I think I should try to test only the patches that are really
 needed: In addition to the dependencies (and the dependencies of the
 dependencies) of this ticket, I have #9107, #11768, #11817 and #11791
 applied. I should test whether removing any of it would make the problem
 disappear.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11935#comment:68>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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