[Numpy-discussion] Segmentation Fault in Numpy.test()

Ralf Gommers ralf.gommers@googlemail....
Tue Aug 2 12:06:37 CDT 2011


On Tue, Aug 2, 2011 at 6:57 PM, Thomas Markovich
<thomasmarkovich@gmail.com>wrote:

> It appears that uninstalling python 2.7 and installing the scipy superpack
> with the apple standard python removes the segfaulting behavior from numpy.
> Now it appears that just scipy is segfaulting at test
> "test_arpack.test_hermitian_modes(True, <std-hermitian>, 'F', 2, 'SM', None,
> 0.5, <function aslinearoperator at 0x1043b1848>) ... Segmentation fault"
>
> That is a known problem (unfortunately hard to fix), see
http://projects.scipy.org/scipy/ticket/1472
Everything else besides arpack should work fine for you.

Cheers,
Ralf


>
>
>
> On Tue, Aug 2, 2011 at 11:28 AM, Ralf Gommers <ralf.gommers@googlemail.com
> > wrote:
>
>>
>>
>> On Tue, Aug 2, 2011 at 6:14 PM, Thomas Markovich <
>> thomasmarkovich@gmail.com> wrote:
>>
>>> I just have the default "apple" version of python that comes with Snow
>>> Leopard (Python 2.6.1 (r261:67515, Aug  2 2010, 20:10:18)) and python 2.7
>>> (Python 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 15:22:34) ) installed.
>>>
>>> Should I just remove 2.7 and reinstall everything with the standard apple
>>> python?
>>>
>>> Did you get it from http://stronginference.com/scipy-superpack/? The
>> info on the 10.6 installer has disappeared, but the 10.7 one is built
>> against Apple's Python. So conflicting Pythons makes sense. Even if you find
>> the right one, it may be worth emailing Chris to ask him to put back the
>> info for the 10.6 installer.
>>
>> Ralf
>>
>>
>> On Tue, Aug 2, 2011 at 11:08 AM, Olivier Delalleau <shish@keba.be> wrote:
>>>
>>>> It's a wild guess, but in the past I've had seg faults issues on Mac due
>>>> to conflicting versions of Python. Do you have multiple Python installs on
>>>> your Mac?
>>>>
>>>> -=- Olivier
>>>>
>>>>
>>>> 2011/8/2 Thomas Markovich <thomasmarkovich@gmail.com>
>>>>
>>>>> Hi All,
>>>>>
>>>>> I installed numpy from the scipy superpack on Snow Leopard with python
>>>>> 2.7 and it all appears to work but when I do the following, I get a
>>>>> segmentation fault.
>>>>>
>>>>> >>> import numpy
>>>>> >>> print numpy.__version__, numpy.__file__
>>>>> 2.0.0.dev-b5cdaee
>>>>> /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy-2.0.0.dev_b5cdaee_20110710-py2.6-macosx-10.6-universal.egg/numpy/__init__.pyc
>>>>> >>> numpy.test()
>>>>> Running unit tests for numpy
>>>>> NumPy version 2.0.0.dev-b5cdaee
>>>>> NumPy is installed in
>>>>> /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy-2.0.0.dev_b5cdaee_20110710-py2.6-macosx-10.6-universal.egg/numpy
>>>>> Python version 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 15:22:34) [GCC
>>>>> 4.2.1 (Apple Inc. build 5666) (dot 3)]
>>>>> nose version 1.1.2
>>>>> ............................................................................................................................................................................................................................................................................................................................Segmentation
>>>>> fault
>>>>> thomasmarkovich:~ Thomas$
>>>>>
>>>>> What is the best way to trouble shoot this? Do you guys have any
>>>>> suggestions? I have also included the core dump in this email as a pastie
>>>>> link.
>>>>>
>>>>> http://pastie.org/2309652
>>>>>
>>>>> Best,
>>>>>
>>>>> Thomas
>>>>>
>>>>> _______________________________________________
>>>>> NumPy-Discussion mailing list
>>>>> NumPy-Discussion@scipy.org
>>>>> http://mail.scipy.org/mailman/listinfo/numpy-discussion
>>>>>
>>>>>
>>>>
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