bugGNU Octave - Bugs: bug #38237, segfault in contourf()

 
 

bug #38237: segfault in contourf()

Submitted by:  Elias Pipping <pipping>
Submitted on:  Sat 02 Feb 2013 11:12:22 PM UTC  
 
Category: Plotting with gnuplotSeverity: 3 - Normal
Priority: 5 - NormalItem Group: Segfault, Bus Error, etc.
Status: DuplicateAssigned to: None
Originator Name: Open/Closed: Closed
Release: 3.6.3Operating System: GNU/Linux

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Sun 03 Feb 2013 05:39:52 AM UTC, comment #1:

This has been fixed in the development branch, see bug #37891. The fix will be released in the next major version of Octave.

I verified that your data samples do indeed work with contourf in the current development version.

Mike Miller <mtmiller>
Project Administrator
Sat 02 Feb 2013 11:12:22 PM UTC, original submission:

The sequence

leads to

The above is with a debugging build of octave 3.6.4-rc1.

I can reproduce this with an optimised build on the same machine and octave 3.6.4-rc0.
I can also reproduce this with an optimised build on another machine and octave 3.6.3.

I have another test case, though, i.e. the matrix X from data_X, which leads to a segfault on two of those three setups but not on the optimised 3.6.4-rc0.

When it does, the crash only takes a second or two to occur (with larger matrices, it can take quite a while, so this is already quite the reduction.

This is on Exherbo Linux with a 3.7.2 kernel.
The other machine I mentioned above is Debian with a 3.2.0-0.bpo.1-amd64 kernel.

Data's at

http://page.mi.fu-berlin.de/pipping/data_X
http://page.mi.fu-berlin.de/pipping/data_N

(because savannah always gives me an error when I try to upload it)

Elias Pipping <pipping>

 

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

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    Follow 3 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Sun 03 Feb 2013 05:39:52 AM UTCmtmillerDependencies-=>Depends on bugs #37891
      StatusNone=>Duplicate
      Open/ClosedOpen=>Closed

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