[Octave-bug-tracker] [bug #31882] Insufficient GL support & segfault

[Muhali]

URL:
  <http://savannah.gnu.org/bugs/?31882>

                 Summary: Insufficient GL support & segfault
                 Project: GNU Octave
            Submitted by: muhali
            Submitted on: Tue Dec 14 17:51:32 2010
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  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:

octave crashes when running plot command remotely with fltk backend.

Here is the corresponding valgrind output:

Insufficient GL support
Insufficient GL support
==19879== Invalid read of size 8
==19879==    at 0x14430DA9: Fl_Gl_Window::make_current() (in
/usr/local/octave-test/libexec/octave/3.3.54+/oct/x86_64-unknown-linux-gnu/fltk_backend.oct)
==19879==    by 0x1441AB53: plot_window::plot_window(int, int, int, int,
figure::properties&) (fltk_backend.cc:842)
==19879==    by 0x1441B853:
figure_manager::do_new_window(figure::properties&) (fltk_backend.cc:1541)
==19879==    by 0x1440E5A8: __fltk_redraw__() (fltk_backend.cc:1419)
==19879==    by 0x1441BA4C: fltk_backend::redraw_figure(graphics_object
const&) const (fltk_backend.cc:1833)
==19879==    by 0x51D6F43: Fdrawnow(octave_value_list const&, int)
(graphics.h:1894)
==19879==    by 0x540CE90: octave_builtin::do_multi_index_op(int,
octave_value_list const&, std::list<octave_lvalue,
std::allocator<octave_lvalue> > const*) (ov-builtin.cc:129)
==19879==    by 0x540BE6B: octave_builtin::subsref(std::string const&,
std::list<octave_value_list, std::allocator<octave_value_list> > const&, int,
std::list<octave_lvalue, std::allocator<octave_lvalue> > const*)
(ov-builtin.cc:64)
==19879==    by 0x540CC2B: octave_builtin::subsref(std::string const&,
std::list<octave_value_list, std::allocator<octave_value_list> > const&, int)
(ov-builtin.cc:47)
==19879==    by 0x54E70D0: octave_value::subsref(std::string const&,
std::list<octave_value_list, std::allocator<octave_value_list> > const&, int)
(ov.cc:1202)
==19879==    by 0x54E7144: octave_value::subsref(std::string const&,
std::list<octave_value_list, std::allocator<octave_value_list> > const&, int,
std::list<octave_lvalue, std::allocator<octave_lvalue> > const*) (ov.cc:1213)
==19879==    by 0x558657D: tree_index_expression::rvalue(int,
std::list<octave_lvalue, std::allocator<octave_lvalue> > const*)
(pt-idx.cc:408)
==19879==  Address 0x18 is not stack'd, malloc'd or (recently) free'd
==19879== 
panic: Segmentation fault -- stopping myself...


----------------------------------------------------------------------
GNU Octave Version 3.3.54+
GNU Octave License: GNU General Public License
Operating System: Linux 2.6.36-trunk-amd64 #1 SMP Wed Oct 27 14:28:29 UTC
2010 x86_64






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