[Pkg-octave-devel] Bug#699300: Bug#699300: Octave crashes with Matrix multiply
Raphael,
I'm using a fresh install of squeeze on an old, plain vanilla 32 bit
computer with an amd xp2000 processor and an agp nvidia graphics card, which
I'm using to check out debian to see if I might like to use it on a new
system ( I mostly used matlab on windows machines when I didn't have to pay
for it myself. Now I do and so I've been
looking for cheaper alternatives). There were no problems using the package
manager to install octave after adding one of the squeeze-backports
locations to the apt sources list. Then I launched octave and then just
typed a=[1 2; 3 4]; b=[5 6;7 8]; a*b. Poof, octave disappeared in a pile of
digital dust ( but a+b is ok). Next I fired up octave again and typed a=[1
2; 3 4]; eig(a). Poof again. eig was one of the test scripts which passed
your tests so I guess this suggests that the problem is local to my computer
but I don't see how. Unless...Before trying octave, I first had problems
with scilab (I'm shopping around). When I used a scilab install script which
deposited the code in my home directory, I was able to launch the software
and perform basic numerical manipulations but the program crashed whenever I
tried to plot anything. Their website said something to the effect that the
standard nvidia driver used by most linux distributions didn't properly
support their graphics implementation (Java binding for OpenGL). However,
eig(a) doesn't seem to require any graphics. One final thing, I also used
the synaptic package manager to load scilab. It installs fine but scilab
promptly vaporizes when you try to launch it from the menu. Do you think
that this nvidia graphics issue could also be the cause of my problems with
octave? I hope not since that was the main reason that I tried to switch
from scilab to octave.
Thanks again in advance for putting up with my grief,
Bill
-----Original Message-----
From: Rafael Laboissiere [mailto:rafael@laboissiere.net]
Sent: Thursday, January 31, 2013 9:42 AM
To: whludescher
Cc: 699300@bugs.debian.org
Subject: Re: [Pkg-octave-devel] Bug#699300: Octave crashes with Matrix
multiply
Bill,
First of all, keep 699300@bugs.debian.org in the Cc list, such that this
discussion is recorded in the BTS. I am doing this and I hope you do not
mind that I copied your private message here.
As regards your question:
* whludescher <whludescher@verizon.net> [2013-01-31 07:46]:
>
> Yes I am running squeeze so I loaded up Octave 3.6.2 as per your
> suggestion, again using the synaptic package manager . Unfortunately,
> I have the same problem with matrix multiply. Is this a known bug or
> must it be something unique to my system. I can't believe that the
> octave community would tolerate such a problem.
This is weird. I have never tested the backported 3.6.2 version of the
octave package in a squeeze system. However, the build daemon succeeded to
build the package and passed all the unit tests:
https://buildd.debian.org/status/fetch.php?pkg=octave&arch=i386&ver=3.6.2-5~
bpo60%2B1&stamp=1350987957
(look for "test scripts" in the page above).
I would say that there is indeed something wrong with your system, but I am
not sure.
At any rate, without more precise information from you, we are not able to
even imagine the origin of this bug.
Rafael
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