[Octave-bug-tracker] [bug #50189] Segfault when drawing sphere as first plot

[Pantxo Diribarne]

URL:
  <http://savannah.gnu.org/bugs/?50189>

                 Summary: Segfault when drawing sphere as first plot
                 Project: GNU Octave
            Submitted by: pantxo
            Submitted on: Mon 30 Jan 2017 09:47:56 PM GMT
                Category: Plotting with OpenGL
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Regression
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

I can reliably crash octave with the current tip (17a3567a7b01) if I try to
plot a sphere with qt toolkit (fltk is ok). The following is enough


# axes ()
sphere (64)


It has to be run as the first plotting command. Adding "axes ()" prior to
plotting the sphere is enough to avoid the crash, which makes me think it has
to do with this cset:
http://hg.savannah.gnu.org/hgweb/octave/rev/5dca1727ce94

I'll try to run this in gdb ASAP




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