#13947: zn_poly segfaults during tuning and tests on OS X and Cygwin when built
on
a busy system
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Reporter: jpflori | Owner: tbd
Type: defect | Status: new
Priority: major | Milestone: sage-5.6
Component: packages | Resolution:
Keywords: zn_poly spkg cygwin osx | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Comment (by leif):
Replying to [comment:15 leif]:
> The offending parameter in John's `tuning.c` seems to be
`tuning_info[62].mul_fft_thresh` (=90, which is extraordinarily low),
i.e., that's the one that (for me) causes the `nuss_mul()` test failures
here.
When I set all `mul_fft_thresh`s to 1, I get a lot more failures (although
not all tests/comparisons fail).
More interestingly, the failures only happen when squaring. If I use
''separate'' "buffers" for both operands (in `test/nuss-test.c`), all
failures vanish, so this seems to be an aliasing problem. (Still strange
the error doesn't happen for all inputs; ''someone^TM^'' should
investigate further... ;-) )
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13947#comment:16>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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