#11551: Pari segfault on Sage startup in Cygwin
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Reporter: kcrisman | Owner: tbd
Type: defect | Status: new
Priority: major | Milestone: sage-4.8
Component: cygwin | Keywords: pari
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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Description changed by kcrisman:
Old description:
> In both Windows XP and Window 7 it is now possible (again) to build Sage
> on Cygwin. However, Sage has a segmentation fault in Pari upon startup.
>
> This happens in initalizing the Pynac i (`init_pynac_I` in
> sage/symbolic/pynac.pyx), but the final thing is that the mpfr number
> 1.00000000000 causes the segfault upon running the `._pari_()` method.
> Suggestions as to why that would be - and a potential fix - are welcome.
>
> ----
>
> Interestingly, one can spend hours using `sage -gdb` to recreate exactly
> what happens in XP, but it just falls out for free in a normal Sage
> backtrace in Windows 7.
New description:
In both Windows XP and Window 7 it is now possible (again) to build Sage
on Cygwin. However, Sage has a segmentation fault in Pari upon startup.
This happens in initalizing the Pynac i (`init_pynac_I` in
sage/symbolic/pynac.pyx), but the final thing is that the mpfr number
1.00000000000 causes the segfault upon running the `._pari_()` method.
Suggestions as to why that would be - and a potential fix - are welcome.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11551#comment:48>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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