[Octave-bug-tracker] [bug #34631] MinGW - fubarred Octave 3.4.+ after many plots

[Philip Nienhuis]

URL:
  <http://savannah.gnu.org/bugs/?34631>

                 Summary: MinGW - fubarred Octave 3.4.+ after many plots
                 Project: GNU Octave
            Submitted by: philipnienhuis
            Submitted on: Sun 23 Oct 2011 09:12:34 PM CEST
                Category: Plotting
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Crash
                  Status: None
             Assigned to: None
         Originator Name: Philip Nienhuis
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.4.3
        Operating System: Microsoft Windows

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Details:

This bug is easy to provoke but I can't put a finger on where the actual bug
might be. It has been present al since Tatsuro's Octave-3.3.90_MinGW.

To reproduce:
Download:
 http://mflab.googlecode.com/files/Bruggeman7xxSeries.zip
unpack Bruggeman720series.m and plotbrug.m somewhere, and run
 Bruggeman720series

This script produces 34 plots, most of them multiple plots in one figure.
(It is made by a colleague, I ported it to Octave for him)

On my boxes I get the following results:

All linux boxes, all Octave versions (3.2.4 - 3.5.+):
-> runs without a hitch and produces the requested 34 plots.

Windows, Octave-3.0.3VC (by Michale Goffioul, I have it still lying around on
my hard disk):
-> produces all 34 plots, complains about 

(pgnuplot.exe:2836): Pango-WARNING **: couldn't load font "Helvetica
Not-Rotated 200", falling back
to "Sans Not-Rotated 200", expect ugly output.

but all plots look OK.

Windows, Octave-3.2.4_MinGW:
-> gnuplot: all OK
-> FLTK:  all OK, but no text (wasn't implemented at the time)

Windows, Octave-3.4.x_MinGW:
-> breaks after 26th plot (FLTK & gnuplot), yielding:

warning: ft_manager: unable to load font:
C:/WINDOWS/fonts/LinLibertineG_Re.ttf
warning: ft_render: unable to load appropriate font
warning: ft_manager: unable to load font:
C:/WINDOWS/fonts/LinLibertineG_Re.ttf
warning: ft_render: unable to load appropriate font
:
  <repeated many many times>
:
warning: ft_manager: unable to load font:
C:/WINDOWS/fonts/LinLibertineG_Re.ttf
warning: ft_render: unable to load appropriate font
error: fputs: invalid stream number = -1
error: called from:
error:  
X:\Octave\Octave3.4.3_gcc4.5.2\share\octave\3.4.3\m\plot\__gnuplot_drawnow__.m
at line 299,
 column 1
error:  
X:\Octave\Octave3.4.3_gcc4.5.2\share\octave\3.4.3\m\plot\__gnuplot_drawnow__.m
at line 84,
column 16
error:   X:\Octave\Octave3.4.3_gcc4.5.2\share\octave\3.4.3\m\plot\figure.m at
line 60, column 7
error:   c:\tmp\plotbrug.m at line 32, column 1
error:   c:\tmp\Bruggeman720series.m at line 673, column 1


At this point Octave is fubarred. It can't close the plots anymore:


octave:3> close all
error: no such file,
`X:\Octave\Octave3.4.3_gcc4.5.2\share\octave\3.4.3\m\plot\closereq.m'
error: called from:
error:   X:\Octave\Octave3.4.3_gcc4.5.2\share\octave\3.4.3\m\plot\close.m at
line 63, column 5
error:   X:\Octave\Octave3.4.3_gcc4.5.2\share\octave\3.4.3\m\plot\close.m at
line 77, column 1
error:   X:\Octave\Octave3.4.3_gcc4.5.2\share\octave\3.4.3\m\plot\close.m at
line 46, column 7
octave:3>


FYI, LinLibertineG_Re.ttf is a font included with LibreOffice.

Intriguing is that on 3.2.4, w/o implemented text in FLTK, it still ran OK.

I've experimented with looping the first few plot stanzas, only to get the
same behavior after a while (40 - 50 plots, depending on what stanzas in
Bruggeman720series.m script I had execute in a loop).





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