From bug-octave-request at bevo dot che dot wisc dot edu  Wed Oct 18 13:32:48 1995
Subject: Mysterious segmentation fault
From: John Eaton <jwe at bevo dot che dot wisc dot edu>
To: Eyal Doron <doron at mickey dot mpi-hd dot mpg dot de>
Cc: bug-octave at che dot utexas dot edu
Date: Wed, 18 Oct 1995 13:32:22 -0500

Eyal Doron <doron at mickey dot mpi-hd dot mpg dot de> wrote:

: Repeat-By:
: ---------
: 
: octave:8> sJa=139; Ja=zeros(sJa,sJa)*(1+I);ledge=60+zeros(8,1);offset=101; S=rand(201,201)*(1+I);N=61;sd=8; lvec=sd+(1:2*N+1);
: octave:9> Ja(1:sd,lvec)=S(offset-ledge,offset+(-N:N));
: error: Segmentation fault -- stopping myself...
: attempting to save variables to `octave-core'...
: save to `octave-core' complete

I am able to reproduce this with version 1.1.1, but this bug doesn't
seem to appear in my current sources.  After these operations, Ja is a
139x139 element complex matrix with 984 nonzero elements.

: By the way, the save to "octave-core" doesn't work, it creates a 36-byte
: file.

It does seem to work here for me, at least for the signals I have
tried.  I'll take a look at it, but I don't think there is any
guarantee that a program will be able to do anything useful after a
segfault, so I doubt that I can make it always succeed.

jwe