Re: fflog seg fault

[Bill Allombert <Bill.Allombert@math.u-bordeaux1.fr>]

On Thu, Sep 30, 2010 at 04:47:31PM -0400, Dan Bailey wrote:
> (16:03) gp > f64 = ffinit(2,64)
> %12 = Mod(1, 2)*x^64 + Mod(1, 2)*x^62 + Mod(1, 2)*x^61 + Mod(1, 2)*x^59 + Mod(1,
>  2)*x^57 + Mod(1, 2)*x^56 + Mod(1, 2)*x^55 + Mod(1, 2)*x^53 + Mod(1, 2)*x^52 + M
> od(1, 2)*x^51 + Mod(1, 2)*x^49 + Mod(1, 2)*x^48 + Mod(1, 2)*x^47 + Mod(1, 2)*x^4
> 5 + Mod(1, 2)*x^43 + Mod(1, 2)*x^42 + Mod(1, 2)*x^41 + Mod(1, 2)*x^40 + Mod(1, 2
> )*x^39 + Mod(1, 2)*x^36 + Mod(1, 2)*x^34 + Mod(1, 2)*x^31 + Mod(1, 2)*x^29 + Mod
> (1, 2)*x^28 + Mod(1, 2)*x^27 + Mod(1, 2)*x^25 + Mod(1, 2)*x^23 + Mod(1, 2)*x^21
> + Mod(1, 2)*x^20 + Mod(1, 2)*x^19 + Mod(1, 2)*x^18 + Mod(1, 2)*x^17 + Mod(1, 2)*
> x^15 + Mod(1, 2)*x^14 + Mod(1, 2)*x^13 + Mod(1, 2)*x^11 + Mod(1, 2)*x^8 + Mod(1,
>  2)*x^3 + Mod(1, 2)*x^2 + Mod(1, 2)*x + Mod(1, 2)
> (16:44) gp > gen64=ffgen(f64)
> %13 = x
> (16:45) gp > fflog(gen64^2,gen64)
>   *** fflog: bug in PARI/GP (Segmentation Fault), please report
> (16:45) gp >

Hello Dan, 

what \v gives in your PARI version ?
Does it depend on the random number generator seed ?

I cannot reproduce this issue with 2.4.1,2.4.2 and SVN12610.

Cheers,
Bill.