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Octave-2.9.9 luinc failure


From: John W. Eaton
Subject: Octave-2.9.9 luinc failure
Date: Tue, 3 Oct 2006 13:06:36 -0400

On  3-Oct-2006, Tom Holroyd (NIH/NIMH) [E] wrote:

| I got this for make check on two different machines, neither has sparse 
matrix stuff built 'cause the libraries aren't there. Would that explain this?
| 
| Integrated test scripts:
| 
|   src/DLD-FUNCTIONS/cellfun.cc ........................... PASS   29/29  
|   src/DLD-FUNCTIONS/conv2.cc ............................. PASS    1/1   
|   src/DLD-FUNCTIONS/dispatch.cc .......................... PASS   13/13  
|   src/DLD-FUNCTIONS/luinc.cc .............................panic: Segmentation 
fault -- stopping myself...
| make[2]: *** [check] Segmentation fault
| 
| Running luinc() by hand various ways produces things like
| octave:3> a = sparse(a);
| octave:4> [l,u,p,q] = luinc(a, struct('droptol',0));
| error: UMFPACK not installed
| 
| so I'm unsure how to test this.

What happens if you do

  ./run-octave -g

in the top-level build directory, then "run" at the (gdb) prompt, then
cd to the src/DLD-FUNCITONS/luinc.cc directory and then type

  test luinc.cc

at the octave prompt?  Does that crash Octave?  If so, what does gdb
tell you about where the crash occurs?

jwe


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