Re: fflog seg fault

[Dan Bailey <pets0undz@gmail.com>]

It does not appear to depend on the RNG seed.  Even after restarting
PARI several times, I consistently get this behavior.

Bill, on which platform is this working for you?
Cheers
Dan



(18:43) gp > \v
         GP/PARI CALCULATOR Version 2.4.2 (development CHANGES-1.1971)
           i686 running cygwin (ix86/GMP-4.2.1 kernel) 32-bit version
 compiled: Dec 23 2007, gcc-3.4.4 (cygming special, gdc 0.12, using dmd 0.125)
                 (readline v5.2 enabled, extended help enabled)
(08:52) gp >

On Fri, Oct 1, 2010 at 6:37 AM, Bill Allombert
<Bill.Allombert@math.u-bordeaux1.fr> wrote:
> 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.
>