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Re: EXC_BAD_ACCESS [was: persistent listeners]
From: |
Ben Abbott |
Subject: |
Re: EXC_BAD_ACCESS [was: persistent listeners] |
Date: |
Sat, 12 Mar 2011 11:59:22 -0500 |
On Mar 12, 2011, at 3:10 AM, logari81 wrote:
> On Thu, 2011-03-10 at 21:20 +0000, bpabbott wrote:
>> On Mar 10, 2011, at 02:34 PM, Konstantinos Poulios
>> <address@hidden> wrote:
>>
>>> On Wed, Mar 9, 2011 at 12:16 PM, Konstantinos Poulios
>>> <address@hidden> wrote:
>>>> In the new implementation of subplot we have the problem that the
>>>> listeners that we use for the synchronization of subplots are
>>> deleted
>>>> once something is plotted on a subplot.
>>>>
>>>> The attached patches implement persistent listeners, i.e.:
>>>>
>>>> 1. listeners added with:
>>>> addlistener (handle, propertyname, cbfunction, "persistent")
>>>> will not be removed by the c++ method "remove_all_listeners", nor
>>> by a
>>>> call to delete_listener() with empty arguments list.
>>>>
>>>> 2. however, explicitly removing a persistent listener from the
>>> frontend with:
>>>> dellistener (handle, propertyname, cbfunction)
>>>> should still work.
>>>>
>>>> Please take a look at the patches so that I can push them if it is
>>> ok,
>>>> so that we can make some progress with the subplot fixes.
>>>>
>>>> Kostas
>>>
>>> I have just pushed a modified/fixed version of these patches.
>>> Actually
>>> with a bit modified policy than the one described in my previous
>>> mail:
>>>
>>> 1. One can add a persistent listener with
>>> addlistener (handle, propertyname, cbfunction, "persistent")
>>>
>>> 2 One can delete all persistent listeners on a property with
>>> dellistener (handle, propertyname, "persistent")
>>>
>>> This change will allow us to fix the known issues with subplot.
>>>
>>> Regards
>>>
>>> Kostas
>>
>> With this in place, Octave crashes for me when I try to create a plot
>> with fltk active.
>>
>>
>> octave:1> graphics_toolkit fltk
>>
>> Reading symbols for shared libraries . done
>>
>> Reading symbols for shared libraries . done
>>
>> octave:2> plot (1:10)
>>
>> Reading symbols for shared libraries . done
>>
>>
>> Program received signal EXC_BAD_ACCESS, Could not access memory.
>>
>> Reason: KERN_PROTECTION_FAILURE at address: 0x00000000
>>
>> 0x927d725e in glMatrixMode ()
>>
>> (gdb) bt
>>
>> #0 0x927d725e in glMatrixMode ()
>>
>> #1 0x03705dbe in OpenGL_fltk::setup_viewport ()
>> at
>> /Users/bpabbott/Development/mercurial/octave/src/DLD-FUNCTIONS/__init_fltk__.cc:146
>>
>> #2 0x03705dbe in OpenGL_fltk::resize (this=0x3609a50, xx=0, yy=20,
>> ww=640, hh=440) at DLD-FUNCTIONS/__init_fltk__.cc:129
>>
>> #3 0x037155d6 in fltk_uimenu::show ()
>> at
>> /Users/bpabbott/Development/mercurial/octave/src/DLD-FUNCTIONS/__init_fltk__.cc:788
>>
>> #4 0x037155d6 in plot_window::show_menubar ()
>> at
>> /Users/bpabbott/Development/mercurial/octave/src/DLD-FUNCTIONS/__init_fltk__.cc:789
>>
>> #5 0x037155d6 in plot_window::plot_window (this=0x36094d0, xx=0,
>> yy=0, ww=640, hh=480, address@hidden) at
>> DLD-FUNCTIONS/__init_fltk__.cc:737
>>
>> #6 0x03715caa in plot_window [inlined] ()
>> at
>> /Users/bpabbott/Development/mercurial/octave/src/DLD-FUNCTIONS/__init_fltk__.cc:755
>>
>> #7 0x03715caa in figure_manager::do_new_window (this=0x33b8870,
>> address@hidden) at DLD-FUNCTIONS/__init_fltk__.cc:1572
>>
>> #8 0x037042bb in figure_manager::new_window ()
>> at
>> /Users/bpabbott/Development/mercurial/octave/src/DLD-FUNCTIONS/__init_fltk__.cc:1450
>>
>> #9 0x037042bb in __fltk_redraw__ () at
>> DLD-FUNCTIONS/__init_fltk__.cc:1767
>>
>> #10 0x03715f77 in fltk_graphics_toolkit::redraw_figure
>> (this=0x3606c40, address@hidden) at
>> DLD-FUNCTIONS/__init_fltk__.cc:1865
>>
>> #11 0x001fdef4 in graphics_toolkit::redraw_figure ()
>> at /Users/bpabbott/Development/mercurial/octave/src/graphics.h:7618
>>
>> #12 0x001fdef4 in Fdrawnow (address@hidden) at graphics.cc:7618
>>
>> #13 0x00498fad in octave_builtin::do_multi_index_op (this=0x3864140,
>> nargout=0, address@hidden, lvalue_list=0x0) at ov-builtin.cc:128
>>
>> #14 0x00499377 in octave_builtin::do_multi_index_op (this=0x3864140,
>> nargout=0, address@hidden) at ov-builtin.cc:98
>>
>> #15 0x0007e578 in octave_value::do_multi_index_op (this=0xbfffb518,
>> nargout=0, address@hidden) at ov.cc:1266
>>
>> #16 0x0005d5f1 in feval (address@hidden, address@hidden,
>> nargout=0) at oct-parse.yy:4140
>>
>> #17 0x0003af99 in interactive_input (address@hidden,
>> force_readline=false) at input.cc:237
>>
>> #18 0x0003ba25 in std::string::operator= () at /usr/include/c
>> ++/4.2.1/bits/basic_string.h:280
>>
>> #19 0x0003ba25 in octave_gets [inlined] ()
>> at /Users/bpabbott/Development/mercurial/octave/src/input.cc:280
>>
>> #20 get_user_input [inlined] ()
>> at /Users/bpabbott/Development/mercurial/octave/src/input.cc:351
>>
>> #21 0x0003ba25 in octave_read (buf=0x3a50600 "", max_size=8192) at
>> input.cc:373
>>
>> #22 0x0003ccd3 in yy_get_next_buffer () at lex.cc:3097
>>
>> #23 0x0004df11 in octave_lex () at lex.cc:2939
>>
>> #24 0x00063a9d in octave_parse () at oct-parse.cc:2395
>>
>> #25 0x0041a5c9 in main_loop () at toplev.cc:567
>>
>> #26 0x003b591d in octave_main (argc=6, argv=0xbfffc354, embedded=0) at
>> octave.cc:935
>>
>> #27 0x00001f80 in main (argc=6, argv=0xbfffc354) at main.c:35
>>
>>
>> Occasionally, I see some strange results on MacOS. Can someone else
>> confirm this behavior?
>>
>> Ben
>
> Hmm, this is very strange because normal plotting shouldn't involve any
> listeners at all, should it? I couldn't reproduce this issue on two
> different computers but I cannot try it on a Mac.
>
> Have you tried rebuilding everything from scratch?
>
> Kostas
I don't see this on Ubuntu, but am able to reproduce in on two Macs. The root
of the problem may be due to fltk-aqua-1.1.10 , the older gcc 4.2.1 I'm using,
or Apple's patches to gcc.
Ben
- persistent listeners, Konstantinos Poulios, 2011/03/09
- Re: persistent listeners, Konstantinos Poulios, 2011/03/10
- Re: EXC_BAD_ACCESS [was: persistent listeners], bpabbott, 2011/03/10
- Re: EXC_BAD_ACCESS [was: persistent listeners], logari81, 2011/03/12
- Re: EXC_BAD_ACCESS [was: persistent listeners],
Ben Abbott <=
- Re: EXC_BAD_ACCESS [was: persistent listeners], Ben Abbott, 2011/03/12
- Re: EXC_BAD_ACCESS [was: persistent listeners], Ben Abbott, 2011/03/12
- Re: EXC_BAD_ACCESS [was: persistent listeners], logari81, 2011/03/12
- Re: EXC_BAD_ACCESS [was: persistent listeners], Michael D Godfrey, 2011/03/12
- Re: EXC_BAD_ACCESS [was: persistent listeners], Ben Abbott, 2011/03/12
- Re: EXC_BAD_ACCESS [was: persistent listeners], logari81, 2011/03/12
- Re: EXC_BAD_ACCESS [was: persistent listeners], Søren Hauberg, 2011/03/13
- Re: EXC_BAD_ACCESS [was: persistent listeners], Ben Abbott, 2011/03/13
- Re: EXC_BAD_ACCESS [was: persistent listeners], Ben Abbott, 2011/03/13
- Re: EXC_BAD_ACCESS [was: persistent listeners], logari81, 2011/03/13