bugGNU Octave - Bugs: bug #29584, Abort in rref when used with...

 
 

bug #29584: Abort in rref when used with matrix produced by eye()

Submitted by:  None
Submitted on:  Sat 17 Apr 2010 06:40:34 PM UTC  
 
Category: NoneSeverity: 3 - Normal
Priority: 5 - NormalItem Group: Segfault, Bus Error, etc.
Status: FixedAssigned to: Jaroslav Hajek <highegg>
Originator Name: stacOriginator Email: -unavailable-
Open/Closed: ClosedRelease: 3.2.2
Operating System: GNU/Linux

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Sun 18 Apr 2010 03:49:53 PM UTC, comment #1:

This appears to be fixed within the development tree.

Jaroslav Hajek <highegg>In charge of this item.
Sat 17 Apr 2010 06:40:34 PM UTC, original submission:

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.

Anonymous

 

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Attach File(s):
   
   
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Attached Files
file #20257:  octave_crash.txt added by None (8KiB - text/plain - Crash output from the first command in the bug report.)
file #20258:  octave-core added by None (113B - application/octet-stream - Crash output from the first command in the bug report.)

 

Depends on the following items: None found

Items that depend on this one: None found

 

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  • -unavailable- added by highegg (Posted a comment)
  • -unavailable- added by None (Submitted the item)
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    Follow 5 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Sun 18 Apr 2010 03:50:09 PM UTChigheggOpen/ClosedOpen=>Closed
    Sun 18 Apr 2010 03:49:53 PM UTChigheggStatusNone=>Fixed
      Assigned toNone=>highegg
    Sat 17 Apr 2010 06:40:34 PM UTCNoneAttached File-=>Added octave_crash.txt, #20257
      Attached File-=>Added octave-core, #20258

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