On Oct 29, 2010, at 7:58 AM, Kai Habel wrote:
Am 29.10.2010 11:29, schrieb Ben Abbott:
On Oct 29, 2010, at 4:31 PM, Kai Habel wrote:
Am 29.10.2010 10:11, schrieb Ben Abbott:
On Oct 29, 2010, at 3:16 PM, Kai Habel wrote:
Am 27.10.2010 09:56, schrieb Ben Abbott:
Ben,
I don't think the error is related to the call of error (msg). Can you check
this, by commenting out this line or placing an input('press enter') before
this line.
You are correct. When I comment out this line, the crash still occurs.
I think the FLTK-GUI runs in "parallel" and is catching an mouse event.
When looking at the backtrace, I see that at #18 plot_window::handle() is called with event==1
(FL_PUSH?) and after that plot_window::pixel2axes_or_ca (this=0x19123970, px=35,py=52). This looks
like valid pixel coordinates. Can you confirm that the error happens during pixel2axes_or_ca. That
should be possible with a debugger, or you can place some debug statements in there e.g.
printf("before\n"); printf("after\n");
The crash seems to happen later in:
#14 0x001ccadd in screen_size_pixels () at graphics.cc:541
where we have
#13 0x017b67ea in Matrix::extract_n (this=0xbfff85e8, r1=0, c1=2, nr=1, nc=2)
----------graphics.cc-----------
// This function always returns the screensize in pixels
static Matrix
screen_size_pixels (void)
{
graphics_object obj = gh_manager::get_object (0);
Matrix sz = obj.get ("screensize").matrix_value ();
return convert_position (sz, obj.get ("units").string_value (), "pixels",
sz.extract_n (0, 2, 1, 2)).extract_n (0, 2, 1, 2);
}
-------------------------------------------------
It seems convert_position() is never called, because one of those
xxx.extract_n() calls fail.
Can you check there if all variables are ok there?
Kai
I'm a c++ flunky. It may be necessary for you give me the commands I need to
check the variables are ok.
I realize I should start with ...
break graphics.cc:541
... which stops at "return convert_position (...)"
Is it enough to then to ..
print sz
Which gives ..
$1 = {
<Array<double>> = {
rep = 0x2d6b7e0,
dimensions = {
rep = 0x2d7c6c8
},
slice_data = 0x4955440,
slice_len = 4
},<No data fields>},<No data fields>}
I can "continue" several times until the plot window appears with the uimenu, but then I'm unable
to select the "clf" option since I have to go back to the command line and type
"continue" again... hmm, I'm not being very clear. Hopefully you understand my problem with the
debugger.
Is the a c++ command I can insert into the code to print the contents of "sz"
to the command liine?
Ben
I don't use gdb much, so I don't how to access sz from there. But if you put in
something like:
std::cout<< "sz(0):"<< sz(0)<< ", sz(1):"<< sz(1)<< ", sz(2):"<< sz(2)<< ",
sz(3):"<< sz(3)<< std::endl;
that should give you the content of sz, with:
sz(0) x0?
sz(1) y0?
sz(2) width
sz(3) heigth
Kai
Ok. good call!
sz(0): 1, sz(1): 1, sz(2):1680, sz(3):1050
sz(0): 1, sz(1): 1, sz(2):1680, sz(3):1050
sz(0): 1, sz(1): 1, sz(2):1680, sz(3):1050
sz(0): 1, sz(1): 1, sz(2):1680, sz(3):1050
error: Invalid call to clf. Correct usage is:
-- Function File: clf ()
-- Function File: clf ("reset")
-- Function File: clf (HFIG)
-- Function File: clf (HFIG, "reset")
Additional help for built-in functions and operators is
available in the on-line version of the manual. Use the command
`doc<topic>' to search the manual index.
Help and information about Octave is also available on the WWW
at http://www.octave.org and via the address@hidden
mailing list.
sz(0): 1.93148e-288, sz(1): 2.122e-314, sz(2):0, sz(3):0
terminate called after throwing an instance of 'octave_execution_exception'
panic: Abort trap -- stopping myself...
attempting to save variables to `octave-core'...
save to `octave-core' complete
The last one is full of nonsense.
What next?
Ben
Maybe it helps, if we check the validity of the root (?) object. Does the
attached patch help?
Kai
<patch.crash>
I still get a crash. The backtrace is below.
terminate called after throwing an instance of 'octave_execution_exception'
Program received signal SIGABRT, Aborted.
0x96a42ef6 in __kill ()
(gdb) bt
#0 0x96a42ef6 in __kill ()
#1 0x96a42ee8 in kill$UNIX2003 ()
#2 0x96ad562d in raise ()
#3 0x96aeb6e4 in abort ()
#4 0x903bffda in __gnu_cxx::__verbose_terminate_handler ()
#5 0x903be17a in __cxxabiv1::__terminate ()
#6 0x903be1ba in std::terminate ()
#7 0x903be2b8 in __cxa_throw ()
#8 0x02531e2f in octave_throw_execution_exception () at misc/quit.cc:67
#9 0x003b73f4 in lo_error_with_id_handler (id=Could not find the frame base for
"lo_error_with_id_handler(char const*, char const*, ...)".
) at octave.cc:546
#10 0x01345046 in gripe_index_out_of_range (nd=2, dim=1, idx=1, ext=0) at
lo-array-gripes.cc:105
#11 0x01402a23 in idx_vector::extent () at
/Users/bpabbott/Development/mercurial/local_clone/liboctave/idx-vector.h:779
#12 0x01402a23 in Array<double>::index (this=0xbfff8638, address@hidden,
address@hidden) at Array.cc:780
#13 0x017b57ea in Matrix::extract_n (this=0xbfff8638, r1=0, c1=2, nr=1, nc=2)
at dMatrix.cc:589
#14 0x001b59ab in screen_size_pixels () at graphics.cc:545
#15 0x001fe7df in figure::properties::get_boundingbox (this=0x324bc08) at
graphics.cc:2771
#16 0x0020c520 in axes::properties::get_boundingbox (this=0x326a008,
internal=true) at graphics.cc:3968
#17 0x047142e3 in plot_window::pixel2axes_or_ca (this=0x42add20, px=54, py=57)
at DLD-FUNCTIONS/fltk_backend.cc:988
#18 0x0471a606 in plot_window::handle (this=0x42add20, event=1) at
DLD-FUNCTIONS/fltk_backend.cc:1223
#19 0x027ea702 in send ()
#20 0x027edece in Fl::handle ()
#21 0x027f023f in carbonMouseHandler ()
#22 0x9613ff2f in DispatchEventToHandlers ()
#23 0x9613f1f6 in SendEventToEventTargetInternal ()
#24 0x961619bb in SendEventToEventTarget ()
#25 0x961734db in ToolboxEventDispatcherHandler ()
#26 0x96140380 in DispatchEventToHandlers ()
#27 0x9613f1f6 in SendEventToEventTargetInternal ()
#28 0x961ac441 in CallNextEventHandler ()
#29 0x027ed022 in carbonDispatchHandler ()
#30 0x9613ff2f in DispatchEventToHandlers ()
#31 0x9613f1f6 in SendEventToEventTargetInternal ()
#32 0x961619bb in SendEventToEventTarget ()
#33 0x027ecb22 in do_queued_events ()
#34 0x027ecccd in Fl::wait ()
#35 0x027ecd07 in Fl::check ()
#36 0x04702bc4 in __fltk_redraw__ () at DLD-FUNCTIONS/fltk_backend.cc:1744
#37 0x04702c25 in F__fltk_redraw__ () at DLD-FUNCTIONS/fltk_backend.cc:1876
#38 0x004a2d26 in octave_builtin::do_multi_index_op (this=0x30747e0, nargout=0,
address@hidden, lvalue_list=0x0) at ov-builtin.cc:129
#39 0x004a30ff in octave_builtin::do_multi_index_op (this=0x30747e0, nargout=0,
address@hidden) at ov-builtin.cc:99
#40 0x0008049a in octave_value::do_multi_index_op (this=0xbfff9ec8, nargout=0,
address@hidden) at ov.cc:1267
#41 0x00060e95 in feval (address@hidden, address@hidden, nargout=0) at
oct-parse.yy:4130
#42 0x002aa4a4 in input_event_hook () at input.cc:1262
#43 0x01ca1633 in command_editor::event_handler () at cmd-edit.cc:889
#44 0x02bb75ec in rl_read_key ()
#45 0x02b9f9f8 in readline_internal_char ()
#46 0x02b9fbc4 in readline_internal_charloop ()
#47 0x02b9fbec in readline_internal ()
#48 0x02b9f6ac in readline ()
#49 0x01ca276e in gnu_readline::do_readline (this=0x2d546f0, address@hidden,
address@hidden) at cmd-edit.cc:253
#50 0x01ca2669 in command_editor::readline (address@hidden, address@hidden) at
cmd-edit.cc:914
#51 0x0003bdf5 in gnu_readline (address@hidden, force_readline=false) at
input.cc:205
#52 0x0003dc7f in interactive_input (address@hidden, force_readline=<value
temporarily unavailable, due to optimizations>) at input.cc:251
#53 0x0003dea4 in std::string::operator= () at
/usr/include/c++/4.2.1/bits/basic_string.h:281
#54 0x0003dea4 in octave_gets [inlined] () at
/Users/bpabbott/Development/mercurial/local_clone/src/input.cc:281
#55 get_user_input [inlined] () at
/Users/bpabbott/Development/mercurial/local_clone/src/input.cc:352
#56 0x0003dea4 in octave_read (buf=0x382cc00 "", max_size=8192) at input.cc:374
#57 0x0003f153 in yy_get_next_buffer () at lex.cc:3098
#58 0x0005015d in octave_lex () at lex.cc:2940
#59 0x00066bd4 in octave_parse () at oct-parse.cc:2409
#60 0x00423194 in main_loop () at toplev.cc:564
#61 0x003bec32 in octave_main (argc=6, argv=0xbfffb040, embedded=0) at
octave.cc:894
#62 0x00001f80 in main (argc=6, argv=0xbfffb040) at main.c:35
(gdb)
Ben