[Cython] Debugging with valgrind

[Michael Abshoff]

Robert Bradshaw wrote:
> On May 7, 2008, at 10:46 PM, Stefan Behnel wrote:
>   

Hi,

>> Yes, that's where we took the suppression file from that we use for  
>> lxml.
>>
>> http://codespeak.net/svn/lxml/trunk/valgrind-python.supp
>>     
>
>   
I am actually pretty paranoid about using suppression files and I do 
prefer recompiling python "--without-pymalloc". But that is likely to be 
something most people will not do since they do not build their own 
python interpreter from sources.

> I bet turning off string interning, etc. would help clean up lots of  
> the noise too.
>   
Hmm, I have seen a lot of noise with Cython 0.9.6.14 even when I set

generate_cleanup_code = 3

In Sage about 100 doctests segfault at exit [out of 900] with that 
setting on, nearly all of them involved matrix[2].pyx somehow IIRC. 
Something for dev1 maybe? It is my understanding that this isn't the 
default of Cython, but more which classes import other classes and in 
which order.

Anyhow: How do I turn off "string interning"?
> - Robert
>   
Cheers,

Michael

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