[pylucene-dev] Infinite recursion causes segfault

[Andi Vajda]

On Sat, 8 Mar 2008, Pete wrote:

> On Saturday March 8 2008 12:44:49 pm Andi Vajda wrote:
>> Try initVM(vmargs='-Xrs') which affects how java uses signals. Another
>> thing that could affect this is how much stack you give java with -Xms
>> (also maxstack) increasing it may give you your Python exception back.
>
> No dice:
>
> n [1]: import lucene
>
> In [2]: lucene.initVM(lucene.CLASSPATH, vmargs='-Xrs')
> Out[2]: <jcc.JCCEnv object at 0xb7e21300>
>
> In [3]: def f():
>   ...:     return f()
>   ...:
>
> In [4]: f()
> Segmentation fault (core dumped)

Did you try something like initVM(classpath, maxstack='2m') ?
In chandler we had a suspicious crash like this one triggered by wxPython 
that we worked around by giving the VM enough stack.

Andi..

>
> While I recognize that the presence of infinite recurusion is likely to be a
> bug in python code, dumping core here makes debugging almost impossible.  I
> spent almost an hour looking for stray threads / extension conflicts before
> happening to see the bug in my python code (missing super() call).
>
> -- 
> Peter Fein   ||   773-575-0694   ||   pfein at pobox.com
> http://www.pobox.com/~pfein/   ||   PGP: 0xCCF6AE6B
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