#715: Parents probably not reclaimed due to too much caching
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       Reporter:  robertwb                                         |         
Owner:  somebody                                 
           Type:  defect                                           |        
Status:  needs_review                             
       Priority:  major                                            |     
Milestone:  sage-5.4                                 
      Component:  coercion                                         |    
Resolution:                                           
       Keywords:  weak cache coercion Cernay2012                   |   Work 
issues:                                           
Report Upstream:  N/A                                              |     
Reviewers:  Jean-Pierre Flori, Simon King, Nils Bruin
        Authors:  Simon King, Jean-Pierre Flori                    |     Merged 
in:                                           
   Dependencies:  #9138, #11900, #11599, to be merged with #11521  |      
Stopgaps:                                           
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Comment (by SimonKing):

 Recall that some of the patchbots report sporadic problems for #13370 or
 #12876 as well - and at least in the case of #12876, it is seemingly a
 similar problem:
 {{{
 sage -t  -force_lib
 devel/sage-12876/sage/rings/polynomial/infinite_polynomial_ring.py
 The doctested process was killed by signal 11
 }}}
 Signal 11, same signal as here.

 I wonder: Does the patchbot uses some `UniqueRepresentation` to represent
 a tester? That might be a problem if it is only weakly cached.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/715#comment:249>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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