On Sat, Sep 16, 2017 at 7:16 AM, Karim Belabas <Karim.Belabas@math.u-bordeaux.fr> wrote:
* Igor Schein [2014-11-24 20:22]:
> ? setrand(927);bnfinit(x^36-18*x^30+423*x^24-1836*x^18+3807*x^12-1458*x^6+729);
>   ***   at top-level: setrand(927);bnfinit(x^36-18*x^30
>   ***                              ^--------------------
>   *** bnfinit: the PARI stack overflows !
>   current stack size: 16000000 (15.259 Mbytes)
>
> With 32MB stack it takes ~9sec - 3 times the average and 1.5 times the
> bad case scenario discussed at the end of bug #1371 communication.

Can no longer reproduce this (tested 100 random seeds, small deviations
from average; and 32MB stack is fine for a degree 36 field).
Closing this bug.

Thanks for your report !



I ran thousands of seeds over the weekend:

? setrand(39822);bnfinit(x^36-18*x^30+423*x^24-1836*x^18+3807*x^12-1458*x^6+729);
time = 9,319 ms.

Almost 4 times the average completion time.

Thanks,

Igor