[Debian-science-sagemath] PARI stack warnings (was Re: 7.4 with the latest shiny new packages: 4000 failed tests)

[Tobias Hansen]

On 11/20/2016 04:56 PM, Jeroen Demeyer wrote:
> On 2016-11-20 13:45, Tobias Hansen wrote:
>> On 11/03/2016 01:44 PM, Jeroen Demeyer wrote:
>>> On 2016-11-03 12:10, Tobias Hansen wrote:
>>>> Do you
>>>> plan to update to pari 2.9 as well?
>>>
>>> Of course. It's on my TODO list.
>>>
>>>> I already tried applying your patches from sage trac #21765 and #21703
>>>> which did not help. Do the failures in the test log from Ximins mail
>>>> below look like it's caused by pari 2.9?
>>>
>>> Some are certainly due to the PARI upgrade.
>>>
>>> Many doctest failures are because of PARI warning messages which cannot
>>> be disabled in vanilla PARI. You need to apply this patch to fix them:
>>> https://github.com/sagemath/sage/blob/master/build/pkgs/pari/patches/stackwarn.patch
>>>
>>>
>>
>> Bill won't apply this patch to the pari package. He suggested to
>> increase the pari stack size in advance to avoid getting the warnings.
>> Where could I do this so that it affects all tests?
> 
> The "size" argument in PariInstance in
> src/sage/libs/pari/pari_instance.pyx determines the default stack size:
> 
> def __init__(self, long size=1000000, unsigned long maxprime=500000):
> 
>

Would you recommend to increase that? I was thinking about only
increasing the stack size for running the tests.