#13447: Make libsingular multivariate polynomial rings collectable
----------------------------------------------------------------+-----------
       Reporter:  nbruin                                        |         
Owner:  rlm                            
           Type:  defect                                        |        
Status:  needs_review                   
       Priority:  major                                         |     
Milestone:  sage-5.4                       
      Component:  memleak                                       |    
Resolution:                                 
       Keywords:                                                |   Work 
issues:  Input from a libsingular expert
Report Upstream:  None of the above - read trac for reasoning.  |     
Reviewers:                                 
        Authors:  Nils Bruin, Simon King                        |     Merged 
in:                                 
   Dependencies:  #11521                                        |      
Stopgaps:                                 
----------------------------------------------------------------+-----------
Changes (by SimonKing):

  * dependencies:  => #11521


Old description:

> Presently, #715 + #11521 help not permanently keeping parent in memory.
> In the process we uncovered a hard-but-consistently triggerable problem
> with the collection of `MPolynomialRing_libsingular`. We have only
> observed the problem on `bsd.math.washington.edu`, MacOSX 10.6 on x86_64.
>
> The present work-around is to permanently store references to these upon
> creation, thus preventing collection. It would be nice if we could
> properly solve the problem (or at least establish that the problem is
> specific to `bsd.math`)
>
> '''Unmerge''' #13145
>
> Apply
>
>  * [attachment:trac_13447-consolidated_refcount.patch]
>  * [attachment:trac_13447-modulus_fix.patch]
>  * [attachment:trac_13447-rely_on_singular_refcount.patch]
>
> '''Merge together with''' #715, #11521

New description:

 Presently, #715 + #11521 help not permanently keeping parent in memory. In
 the process we uncovered a hard-but-consistently triggerable problem with
 the collection of `MPolynomialRing_libsingular`. We have only observed the
 problem on `bsd.math.washington.edu`, MacOSX 10.6 on x86_64.

 The present work-around is to permanently store references to these upon
 creation, thus preventing collection. It would be nice if we could
 properly solve the problem (or at least establish that the problem is
 specific to `bsd.math`)

 '''Unmerge''' #13145

 '''Apply'''

 #715, #11521, and then

  * [attachment:trac_13447-consolidated_refcount.patch]
  * [attachment:trac_13447-modulus_fix.patch]
  * [attachment:trac_13447-rely_on_singular_refcount.patch]

 '''Merge together with''' #715, #11521

--

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13447#comment:34>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

-- 
You received this message because you are subscribed to the Google Groups 
"sage-trac" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to 
[email protected].
For more options, visit this group at 
http://groups.google.com/group/sage-trac?hl=en.

Reply via email to