Re: [Pyode-user] segfault in tests

[John M. <jo...@zu...>]

One more fix to those tests.  They fail on Fedora but not el6 (el6 is
quite a bit older), and on 64-bit but not 32-bit.

The failure is because of a rounding error; the results differ by 6e-8.

The attached patch adds a check to the unittests that compares the
floats to within five decimals.  It's tested to pass on el6 and f17-f20,
and 64- and 32-bit.

	John



On 04/24/2013 12:42 AM, John Morris wrote:
> Hi Ethan,
> 
> Thanks for the quick reply!
> 
> I must have been keyword challenged last time around, but this time I
> easily googled up a ready-made solution:
> 
> http://comments.gmane.org/gmane.comp.python.pyode.user/174
> 
> If it matters, I'm building against ODE version 0.11.1.
> 
> Attached is the patch to fix the segfault.  This will be included in the
> Fedora package.  If this patch makes it into git and you release a
> snapshot, I'll package up the new version & drop the patch.
> 
> Thanks-
> 
> 	John
> 
> 
> On 04/23/2013 11:12 PM, Ethan wrote:
>> Hi John,
>>
>> To be honest, I never used or understood the xode code. Sorry, I can't help.
>>
>> Ethan
>>
>>
>> On Tue, Apr 23, 2013 at 12:14 PM, John Morris <jo...@zu...
>> <mailto:jo...@zu...>> wrote:
>>
>>     Hi list,
>>
>>     I'm working on packaging pyode for Fedora.  Everything has gone smoothly
>>     except the tests, which segfault after successful completion of all 110
>>     tests.  Has this been seen before?  Below is the output of the test run
>>     and a gdb stack trace on the resulting core file.
>>
>>             John
>>
>>
>>     $ python PyODE-snapshot-2010-03-22/tests/test_xode.py
>>     ..............................................................................................................
>>     ----------------------------------------------------------------------
>>     Ran 110 tests in 1.014s
>>
>>     OK
>>     Segmentation fault
>>
>>
>>
>>
>>
>>     #0  0x00007f48659dc253 in dBodyDestroy () from /usr/lib64/libode.so.1
>>     #1  0x00007f4865cb6434 in __pyx_f_3ode_4Body___dealloc__ (
>>         o=<value optimized out>) at ode_trimesh.c:3355
>>     #2  __pyx_tp_dealloc_3ode_Body (o=<value optimized out>)
>>         at ode_trimesh.c:14829
>>     #3  0x00007f4865cb3eeb in __pyx_tp_dealloc_3ode_GeomObject
>>     (o=0x7f4866144650)
>>         at ode_trimesh.c:16892
>>     #4  0x00007f486ccfe49b in PyDict_Clear () from
>>     /usr/lib64/libpython2.6.so.1.0
>>     #5  0x00007f486ccfe529 in ?? () from /usr/lib64/libpython2.6.so.1.0
>>     #6  0x00007f486cd87f6a in ?? () from /usr/lib64/libpython2.6.so.1.0
>>     #7  0x00007f486cd88564 in PyGC_Collect () from
>>     /usr/lib64/libpython2.6.so.1.0
>>     #8  0x00007f486cd798b6 in Py_Finalize () from
>>     /usr/lib64/libpython2.6.so.1.0
>>     #9  0x00007f486cd79a08 in Py_Exit () from /usr/lib64/libpython2.6.so.1.0
>>     #10 0x00007f486cd79b51 in ?? () from /usr/lib64/libpython2.6.so.1.0
>>     #11 0x00007f486cd79dcd in PyErr_PrintEx () from
>>     /usr/lib64/libpython2.6.so.1.0
>>     #12 0x00007f486cd7a297 in PyRun_SimpleFileExFlags ()
>>        from /usr/lib64/libpython2.6.so.1.0
>>     #13 0x00007f486cd86c32 in Py_Main () from /usr/lib64/libpython2.6.so.1.0
>>     #14 0x00007f486c060cdd in __libc_start_main (main=0x400710, argc=2,
>>         ubp_av=0x7fff7c22c758, init=<value optimized out>,
>>         fini=<value optimized out>, rtld_fini=<value optimized out>,
>>         stack_end=0x7fff7c22c748) at libc-start.c:226
>>     #15 0x0000000000400649 in ?? ()
>>     #16 0x00007fff7c22c748 in ?? ()
>>     #17 0x000000000000001c in ?? ()
>>     #18 0x0000000000000002 in ?? ()
>>     #19 0x00007fff7c22dc19 in ?? ()
>>     #20 0x00007fff7c22dc20 in ?? ()
>>     #21 0x0000000000000000 in ?? ()
>>
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