[Numpy-discussion] Segfault in mingw in test_arrayprint.TestComplexArray

[Ondřej Čertík]

Hi Ralf,

On Wed, Jul 18, 2012 at 7:25 PM, Ralf Gommers
<ralf.gommers at googlemail.com> wrote:
>
>
> On Wed, Jul 18, 2012 at 1:24 PM, Ondřej Čertík <ondrej.certik at gmail.com>
> wrote:
>>
>> Hi,
>>
>> I managed to compile NumPy in MinGW under Wine in Ubuntu 11.10 and
>> here is a full log of the tests:
>>
>> https://gist.github.com/3135607
>>
>> It fails at the test test_str (test_arrayprint.TestComplexArray) with
>> a segfault like this:
>>
>>
>> test_str (test_arrayprint.TestComplexArray) ... wine: Unhandled page
>> fault on read access to 0x00000000 at address (nil) (thread 0009),
>> starting debugger...
>> Unhandled exception: page fault on read access to 0x00000000 in 32-bit
>> code (0x00000000).
>> Register dump:
>>  CS:0023 SS:002b DS:002b ES:002b FS:0063 GS:006b
>>  EIP:00000000 ESP:0041c230 EBP:00000000 EFLAGS:00010202(  R- --  I   - - -
>> )
>>  EAX:00000000 EBX:1e00807f ECX:00000000 EDX:0041c208
>>  ESI:00f46de0 EDI:00000000
>>
>> ...
>>
>> See the gist for the full log. Any ideas? I downloaded Python from
>> python.org, is it supposed to work with numpy compiled using mingw?
>
>
> It is. I have Python 2.5 ... 3.2 from Python.org, with MinGW from
> http://prdownloads.sourceforge.net/mingw/MinGW-5.0.3.exe?download and ATLAS
> binaries from https://github.com/numpy/vendor.
>
> Then I normally build numpy/scipy with "paver bdist_wininst_simple" or
> "paver bdist_wininst_superpack". This also requires MakeNSIS and the CpuId
> plugin for it, as documented at
> https://github.com/numpy/numpy/blob/master/doc/HOWTO_RELEASE.rst.txt

Thanks for the details. I'll try to reproduce it. I have no idea why
my setup doesn't work.
I've nailed it to:

>>> import numpy as np
>>> np.array([complex(0, 1)], np.complex64)
wine: Unhandled page fault on read access to 0x00000000 at address
(nil) (thread 0009), starting debugger...
...

So it is something with the complex types.

Ondrej