Re: reliable seg fault

[Jordi Gutiérrez Hermoso]

On 24 October 2011 09:19, Mike Miller <address@hidden> wrote:
> On Mon, 24 Oct 2011, Francesco Potortì wrote:
>
>>> octave:2> n=181; p=39; X=ones(n,p); X'*X;
>>> panic: Segmentation fault -- stopping myself...
>>> attempting to save variables to `octave-core'...
>>> save to `octave-core' complete
>>> Segmentation fault
>>>
>>> That is, when there are 39 columns, a matrix "X" with fewer than 181 rows
>>> is ok, but with 181 or more rows it seg faults when I attempt X'*X.
>>
>> No problem on Debian:
>>
>> GNU Octave, version 3.2.4
>> Octave was configured for "x86_64-pc-linux-gnu".
>
>
> I know that other people won't have this problem.  I've been using Octave
> for many years and it always worked.  I'm just wondering if anyone here has
> an idea of what might be causing this problem.

Some old versions of gcc were buggy and producing segfaulty code. Any
idea what was used to compile this binary?

- Jordi G. H.