On Monday, December 24, 2012 10:54:48 PM UTC+1, Simon King wrote:
>
> Hi Jean-Pierre, 
>
> On 2012-12-24, Jean-Pierre Flori <jpf...@gmail.com <javascript:>> wrote: 
> > Not sure we got these so clearly before, but using --without-pymalloc 
> and 
> > Valgrind (hint: finish and review #13060) I get lots of 
> > 
> > 
> >==28631== Invalid read of size 8 
> >==28631==    at 0x10429E50: 
> > __pyx_tp_dealloc_4sage_9structure_15category_object_CategoryObject 
> > (category_object.c:8990) 
> > ... 
> >==28631==    by 0x10A6CD28: 
> > __pyx_pw_4sage_9structure_11coerce_dict_16TripleDictEraser_3__call__ 
> > (coerce_dict.c:1225) 
>
> OK, that's good, because it clearly points to the stuff from #715 and 
> thus gives hope to find a bug in the new code. 
>
Yup, let's hope so.

Maybe the problem is with endomorphism rings, because we have the domain 
and codomain pointing to the same parent, that's a nice culprit for a 
superfluous decref. 

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