Hi Machael,

You wrote:
> 
> 
> On Oct 29, 9:18 pm, Jaap Spies <[EMAIL PROTECTED]> wrote:
>> Michael,
>>
> 
> Hello Jaap,
> 
>> Remembering that dance(10) has a segmentation fault long before
>> there was a function _choose, is it possible that some other
>> part of the code is going wild?
>>
> 
> Sure, but so far no lead. Which specific version did exhibit that
> behavior? I can build older releases locally and see if I can come up
> with anything.
> 

On 23 Oct I wrote:

To day I got with sage-2.8.8.1:

 > > sage: time dance(10)
 > >
 > >
 > > ------------------------------------------------------------
 > > Unhandled SIGSEGV: A segmentation fault occured in SAGE.
 > > This probably occured because a *compiled* component
 > > of SAGE has a bug in it (typically accessing invalid memory)
 > > or is not properly wrapped with _sig_on, _sig_off.
 > > You might want to run SAGE under gdb with 'sage -gdb' to debug this.
 > > SAGE will now terminate (sorry).
 > > ------------------------------------------------------------


> Now that 2.8.10 with all your speed improvements is out I will do some
> more testing with that release on sage.math with a 32 bit binary to
> see if I can flush anything out with that.
> 

Warning: see the reopened trac #217, I stupid changed some Py_ssize_t
in ints, but knowing the nrows and ncols are small, there will be no
problem, I hope!

> As I wrote above: The issues with the refcount going insane is a nice
> result from the debugging and that will hopefully lead to some
> improvements in our fight against memleaks.
> 

Thanks and good luck,

Jaap


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