Bill Allombert on Mon, 17 Oct 2005 10:50:27 +0200


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Re: Segmentation Violation 

On Wed, Oct 05, 2005 at 04:57:18PM +0200, tony.reix wrote:
> Hi,
> 
> With the latest version of PARI/gp, I have a segmentation
> violation.
> Based on gdb, this seems to appear in gmp.

Hello,

You have hit the FAQ item 

<http://www.math.u-bordeaux.fr/~belabas/pari/doc/faq.html#GMPkernelbug>

The GMP library can sometime use a lot of system stack. 

There are several way to avoid the problem, but the simplest is to
increase the system stack size,
see
<http://www.math.u-bordeaux.fr/~belabas/pari/doc/faq.html#stacksize>

Before starting GP from the shell, do:

   If your shell is sh-based (bash, ksh, sh, zsh):
    ulimit -s 20000

   If your shell is csh-based (csh, tcsh):
    limit stacksize 20000

Cheers,
Bill.