On Dec 6, 8:19 am, John H Palmieri <[EMAIL PROTECTED]> wrote:
> On Dec 5, 5:10 pm, "William Stein" <[EMAIL PROTECTED]> wrote:
>
Hi John,
>
> > You have to manually resolve this merge conflict by editing
> > integer.pyx, choosing one of the two options, and then
> > check in the result of doing the merge.
>
> Actually, before you posted this I just edited integer.pyx by hand and
> ran 'sage -b' to finish the compilation of the pyx files.
>
> I had two doctest failures:
>
> When building from scratch:
>
> sage -t "devel/sage/sage/interfaces/psage.py"
> A mysterious error (perphaps a memory error?) occurred, which may have
> crashed doctest.
Is that with #4719 applied or not?
> When using the upgraded version:
>
> sage -t "devel/sage/sage/rings/polynomial/
> multi_polynomial_libsingular.pyx"
>
> ------------------------------------------------------------
> Unhandled SIGBUS: A bus error occured in SAGE.
> This probably occured because a *compiled* component
> of SAGE has a bug in it (typically accessing invalid memory)
> or is not properly wrapped with _sig_on, _sig_off.
> You might want to run SAGE under gdb with 'sage -gdb' to debug this.
> SAGE will now terminate (sorry).
> ------------------------------------------------------------
>
> A mysterious error (perphaps a memory error?) occurred, which may have
> crashed doctest.
> [17.3 s]
Ok.
> Unfortunately, neither of these is repeatable: when I do ./sage -t ...
> on either of the above files now, I get no errors.
My solution here is usually to run the doctest a couple hundred times
in a loop to get some statistical info, i.e. we had LinBox bugs that
only happened in 2% of the cases and I narrowed down the issue by
rerunning that test a massive number of times until Clement ended up
fixing the bug in LinBox. I will see if valgrind turns anything up.
sage -tp also has infrastructure to run doctests in a loop, but I am
not so sure it does the reporting the way I want it. I will see and
then ping Gary about it in case he is looking for things to improve
for parallel testing.
> John
Cheers,
Michael
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