[Octave-bug-tracker] [bug #29584] Abort in rref when used with matrix produced by eye()

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?29584>

                 Summary: Abort in rref when used with matrix produced by
eye()
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Sat 17 Apr 2010 06:40:34 PM UTC
                Category: None
                Severity: 3 - Normal
              Item Group: Crash
                  Status: None
             Assigned to: None
         Originator Name: stac
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.2.2
        Operating System: GNU/Linux

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Details:

octave --eval "rref(eye(2,2))"         ===> abort in free()
octave --eval "m = eye(2,2); rref(m)"  ===> abort in free()
octave --eval "rref([1 0; 0 1])"       ===> correct result

octave --eval "rref(eye(2,1))"         ===> abort in malloc()
octave --eval "rref([1;0])"            ===> correct result

Same results are produced in an interactive session with octave.

Looks like a heap corruption since malloc/free are noticing a broken heap and
calling abort().

I'm running on Ubuntu Karmic (9.10) with ubuntu package version
3.2.2-2build1.

The output from the very first command (above) and the octave-core file are
attached.




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File Attachments:


-------------------------------------------------------
Date: Sat 17 Apr 2010 06:40:34 PM UTC  Name: octave_crash.txt  Size: 8kB  
By: None
Crash output from the first command in the bug report.
<http://savannah.gnu.org/bugs/download.php?file_id=20257>
-------------------------------------------------------
Date: Sat 17 Apr 2010 06:40:34 PM UTC  Name: octave-core  Size: 113B   By:
None
Crash output from the first command in the bug report.
<http://savannah.gnu.org/bugs/download.php?file_id=20258>

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