[Octave-bug-tracker] [bug #41244] Segfault using the figure() command

[Michael C. Grant]

URL:
  <http://savannah.gnu.org/bugs/?41244>

                 Summary: Segfault using the figure() command
                 Project: GNU Octave
            Submitted by: mcgrant
            Submitted on: Wed 15 Jan 2014 10:49:48 PM GMT
                Category: Plotting with OpenGL
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Crash
                  Status: None
             Assigned to: None
         Originator Name: Michael C. Grant
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Mac OS

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Details:

I'm running the gui-release build here, and I can cause Octave to segfault
periodically simply by using the figure() command. I also see interesting
behavior where the first figure window is initially rendered upside down
(screenshot attached); that behavior is far more consistent.

I basically do this:


figure(1)
figure(2)
figure(3)
....


If it doesn't crash after the first three or four figures, I quit and try
again. Sometimes quitting itself will do it.

This happens, by the way, with the "--no-gui" setting.

Look at Thread 9 of the crash dump; it seems that's where the crash is
triggered, by what looks to be some sort of drawnow-like command. I'm not the
most skilled lldb user out there but I can try and get more debug information
if that's helpful.





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File Attachments:


-------------------------------------------------------
Date: Wed 15 Jan 2014 10:49:48 PM GMT  Name: crash.dump  Size: 61kB   By:
mcgrant

<http://savannah.gnu.org/bugs/download.php?file_id=30283>
-------------------------------------------------------
Date: Wed 15 Jan 2014 10:49:48 PM GMT  Name: Screen Shot 2014-01-15 at 4.42.32
PM.png  Size: 85kB   By: mcgrant

<http://savannah.gnu.org/bugs/download.php?file_id=30284>

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