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

From: Michael C. Grant
Subject: [Octave-bug-tracker] [bug #41244] Segfault using the figure() command
Date: Wed, 15 Jan 2014 22:49:49 +0000
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1700.77 Safari/537.36


                 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



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:


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.


File Attachments:

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

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



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