[SciPy-dev] Another segfault

Ed Schofield schofield at ftw.at
Fri Mar 3 08:42:25 CST 2006


Robert Cimrman wrote:
> Ed Schofield wrote:
>   
>> Nils Wagner wrote:
>>
>>     
>>> Thank you for your advice. This note should be available on the Wiki as a
>>> warning for other users. I have spend more than one day on this - pure 
>>> waste of time.
>>> Anyway the segfault w.r.t. sparse_test.py persists independent from 
>>> g77/gfortran.
>>> Can you reproduce this segfault ?
>>>  
>>>       
>> I can't.  I'm using g77 v3.4.6 with a default distutils config.  Does it
>> work if you install scipy from scratch this way?  It may be a bug,
>> rather than a configuration error, but we need to reproduce it to fix it.
>>     
>
> The sparse_test.py works ok for me, but if one runs sparse.py module as 
> a script, a segfault occurs in solve() when using LU. (UMFPACK works ok, 
> if present, that is.) Can you reproduce this, Ed?
>   
No, I can't.  (I only have a 32-bit machine.)  I've added a unit test
that runs Nils' code.  If others start reporting segfaults we're in
business ;)

I've fixed some bugs in the handling of data type arguments and added a
small unit test for tocsc() conversion with complex data types.  This is
unlikely to fix the segfault problem though ...

-- Ed




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