[Octave-bug-tracker] [bug #31492] for fltk, patch() crashes developers sources

[Ben Abbott]

URL:
  <http://savannah.gnu.org/bugs/?31492>

                 Summary: for fltk, patch() crashes developers sources
                 Project: GNU Octave
            Submitted by: bpabbott
            Submitted on: Fri 29 Oct 2010 03:26:50 AM EDT
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Crash
                  Status: None
             Assigned to: None
         Originator Name: Ben Abbott
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Mac OS

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Details:

$ hg tip
changeset:   11166:9cdf43d1fa16
tag:         tip
user:        Ben Abbott <address@hidden>
date:        Fri Oct 29 10:20:30 2010 +0800
summary:     gl-render.cc: Crop ticks, ticklabels, and gridlines for OpenGL
backend.

Setting a patch's facecolor to "none" causes octave to crash.

x = [0 1 1 0];
y = [0 0 1 1];
backend fltk
patch (x, y, "b", "facecolor", "none")
panic: Bus error -- stopping myself...
attempting to save variables to `octave-core'...
save to `octave-core' complete

from gdb ...

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_PROTECTION_FAILURE at address: 0x00000000
0x002745ca in convert_cdata_1<double> (is_scaled=true, clim_0=0, clim_1=1,
cmapv=0x4822c00, cv=0x0, lda=1, nc=64, av=0x414f5c0) at graphics.cc:602
602         convert_cdata_2 (is_scaled, clim_0, clim_1, cmapv, cv[i], lda, nc, 
i,
av);
(gdb) 
Current language:  auto; currently c++

The backtrace is ...

(gdb) bt
#0  0x002745ca in convert_cdata_1<double> (is_scaled=true, clim_0=0,
clim_1=1, cmapv=0x4822c00, cv=0x0, lda=1, nc=64, av=0x414f5c0) at
graphics.cc:602
#1  0x001ce2e3 in convert_cdata (address@hidden, address@hidden,
is_scaled=<value temporarily unavailable, due to optimizations>, cdim=2) at
graphics.cc:670
#2  0x0020e447 in patch::properties::get_color_data (this=0x4842c08) at
graphics.cc:4861
#3  0x00150e55 in opengl_renderer::draw_patch (this=0x417b400,
address@hidden) at gl-render.cc:2499
#4  0x001463e9 in opengl_renderer::draw (this=0x417b400, address@hidden) at
gl-render.cc:550
#5  0x00168735 in opengl_renderer::draw_axes (this=0x417b400,
address@hidden) at gl-render.cc:1742
#6  0x001460aa in opengl_renderer::draw (this=0x417b400, address@hidden) at
gl-render.cc:544
#7  0x0016db16 in opengl_renderer::draw (this=0x417b400, address@hidden) at
gl-render.h:56
#8  0x0016b76e in opengl_renderer::draw (this=0x417b400, address@hidden)
at gl-render.h:69
#9  0x001480c9 in opengl_renderer::draw_figure (this=0x417b400,
address@hidden) at gl-render.cc:598
#10 0x00145f95 in opengl_renderer::draw (this=0x417b400, address@hidden) at
gl-render.cc:542
#11 0x0471087a in opengl_renderer::draw () at
/Users/bpabbott/Development/mercurial/local_clone/src/gl-render.h:161
#12 0x0471087a in OpenGL_fltk::draw (this=0x417b360) at
DLD-FUNCTIONS/fltk_backend.cc:161
#13 0x027cf058 in Fl_Gl_Window::flush ()
#14 0x027ecd0e in Fl_X::flush ()
#15 0x027ece5d in Fl::flush ()
#16 0x027edca2 in Fl::wait ()
#17 0x027edd07 in Fl::check ()
#18 0x04702bbf in __fltk_redraw__ () at DLD-FUNCTIONS/fltk_backend.cc:1743
#19 0x047167e5 in fltk_backend::redraw_figure (this=0x4356d80,
address@hidden) at DLD-FUNCTIONS/fltk_backend.cc:1835
#20 0x001d9fb5 in graphics_backend::redraw_figure () at
/Users/bpabbott/Development/mercurial/local_clone/src/graphics.h:6346
#21 0x001d9fb5 in Fdrawnow (address@hidden) at graphics.cc:6346
#22 0x004a3df6 in octave_builtin::do_multi_index_op (this=0x3064b40,
nargout=0, address@hidden, lvalue_list=0x0) at ov-builtin.cc:129
#23 0x004a41cf in octave_builtin::do_multi_index_op (this=0x3064b40,
nargout=0, address@hidden) at ov-builtin.cc:99
#24 0x00080616 in octave_value::do_multi_index_op (this=0xbfffa198,
nargout=0, address@hidden) at ov.cc:1267
#25 0x00061011 in feval (address@hidden, address@hidden, nargout=0) at
oct-parse.yy:4130
#26 0x0003d596 in interactive_input (address@hidden, force_readline=false) at
input.cc:238
#27 0x0003e022 in std::string::operator= () at
/usr/include/c++/4.2.1/bits/basic_string.h:281
#28 0x0003e022 in octave_gets [inlined] () at
/Users/bpabbott/Development/mercurial/local_clone/src/input.cc:281
#29 get_user_input [inlined] () at
/Users/bpabbott/Development/mercurial/local_clone/src/input.cc:352
#30 0x0003e022 in octave_read (buf=0x3239600 "", max_size=8192) at
input.cc:374
#31 0x0003f2cf in yy_get_next_buffer () at lex.cc:3098
#32 0x000502d9 in octave_lex () at lex.cc:2940
#33 0x00066d50 in octave_parse () at oct-parse.cc:2409
#34 0x00424264 in main_loop () at toplev.cc:564
#35 0x003bfd02 in octave_main (argc=6, argv=0xbfffafa4, embedded=0) at
octave.cc:894
#36 0x00001f80 in main (argc=6, argv=0xbfffafa4) at main.c:35





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