Re: Problems with treeview selection when using multiple treeviews (libglade2)

[<Jo...@bo...>]

> Hi,
>
> On Fri, 19 Aug 2005 17:24:06 +0200 (CEST)
> Jo...@bo... wrote:
>
>> Hi
>>
>> I have 2 problems to report.
>> The first one is that the procs sent to
>> Gtk::Treeveiw::Selection.set_select_function seems to be overwritten in
>> some cases if there are multiple treeviews.
>
> Hmm, this may be a known GC problem. It'll fix Ruby-GNOME2-0.14.0 with
> GTK+-2.8.0.
>
> BTW, patch below may fix this problem, though I don't try it by myself.
>

I tried the patch, and the problem persists. It may be the old crappy gtk
version I'm stuck with. I am a bit too lazy to compile that big beast
myself, and since I wont get the root password, I cant upgrade the rpm
packages.

>> I click aruond a bit in one of them, the contents
>> change as expected. Then I switch to another page and try to select an
>> item in the other view with attached selection function. I then get a
>> "[BUG] Segmentation fault"
>
> $ gdb ruby
> $ run test.rb
> (segfault)
> $ bt
> (print stacktrace)

This little beauty pops up. It seems that this one is from the expose,
which seems normal, since it happened the first time the widget was shown.

I get suspicious when I see the n=-74889133 (which is normally below 5
when the program works normally) at rb_funcall. May this be some kind of
stack corruption that depends on this being a x86_64 machine? Or is it
just an old buggy gtk version?

#0  0x0000000000465929 in st_lookup (table=0x2a95d03470, key=5233,
    value=0x7fbfff7e88) at st.c:259
#1  0x000000000040d678 in search_method (klass=182971944656, id=5233,
    origin=0x7fbfff7eb0) at eval.c:436
#2  0x000000000040d6cb in rb_get_method_body (klassp=0x7fbfff7f00,
    idp=0x7fbfff7f08, noexp=0x7fbfff7f14) at eval.c:450
#3  0x00000000004185fa in rb_call (klass=182971944656, recv=182971944696,
    mid=5233, argc=4, argv=0x7fbfff7f50, scope=1) at eval.c:5861
#4  0x00000000004189ae in vafuncall (recv=182971944696, mid=5233, n=5233,
    ar=0x4) at ruby.h:633
#5  0x0000000000418a93 in rb_funcall (recv=5233, mid=5233, n=-74889133)
    at eval.c:5979
#6  0x0000002a98831402 in selection_func (selection=0x98bc40,
    model=0x95b750, path=0x2a9d1d2f90, path_currently_selected=0,
    func=0x2a99fa4ef8) at rbgtktreeselection.c:44
#7  0x0000002a98ae85c6 in _gtk_tree_selection_internal_select_node ()
   from /usr/lib64/libgtk-x11-2.0.so.0
#8  0x0000002a98afe83a in gtk_tree_view_set_reorderable ()
   from /usr/lib64/libgtk-x11-2.0.so.0
#9  0x0000002a98af1979 in gtk_tree_view_get_type ()
   from /usr/lib64/libgtk-x11-2.0.so.0
#10 0x0000002a98a4821d in _gtk_marshal_BOOLEAN__BOXED ()
   from /usr/lib64/libgtk-x11-2.0.so.0
#11 0x0000002a95e268d0 in g_cclosure_new_swap ()
   from /usr/lib64/libgobject-2.0.so.0
#12 0x0000002a95e265b7 in g_closure_invoke ()
   from /usr/lib64/libgobject-2.0.so.0
#13 0x0000002a95e36f25 in g_signal_emit_by_name ()
   from /usr/lib64/libgobject-2.0.so.0
#14 0x0000002a95e36152 in g_signal_emit_valist ()
   from /usr/lib64/libgobject-2.0.so.0
#15 0x0000002a95e36603 in g_signal_emit ()
   from /usr/lib64/libgobject-2.0.so.0
#16 0x0000002a98b10d6b in gtk_widget_send_expose ()
   from /usr/lib64/libgtk-x11-2.0.so.0
#17 0x0000002a98a48016 in gtk_propagate_event ()
   from /usr/lib64/libgtk-x11-2.0.so.0
#18 0x0000002a98a470df in gtk_main_do_event ()
   from /usr/lib64/libgtk-x11-2.0.so.0
#19 0x0000002a98d23bcf in _gdk_events_queue ()
   from /usr/lib64/libgdk-x11-2.0.so.0
#20 0x0000002a95f78ac2 in unblock_source () from /usr/lib64/libglib-2.0.so.0
#21 0x0000002a95f79a3c in g_main_context_dispatch ()
   from /usr/lib64/libglib-2.0.so.0
#22 0x0000002a95f79d00 in g_main_context_dispatch ()
   from /usr/lib64/libglib-2.0.so.0
#23 0x0000002a95f7a39a in g_main_loop_run () from /usr/lib64/libglib-2.0.so.0
#24 0x0000002a98a46a10 in gtk_main () from /usr/lib64/libgtk-x11-2.0.so.0
#25 0x0000002a98836820 in gtk_m_main (self=5233) at rbgtkmain.c:167
#26 0x000000000042499f in call_cfunc (func=0x2a988367f0 <gtk_m_main>,
    recv=182944258968, len=-74889133, argc=5233, argv=0x1471) at eval.c:5529
#27 0x0000000000417dd1 in rb_call0 (klass=182943762368, recv=182944258968,
    id=5097, oid=5097, argc=0, argv=0x0, body=0x2a984c4040, nosuper=0)
---Type <return> to continue, or q <return> to quit---
    at eval.c:5664
#28 0x00000000004186ce in rb_call (klass=182943762368, recv=182944258968,
    mid=5097, argc=0, argv=0x0, scope=0) at eval.c:5885
#29 0x000000000041317e in rb_eval (self=182902002400, n=0x1471)
    at eval.c:3367
#30 0x000000000040f195 in ruby_exec_internal () at eval.c:1538
#31 0x000000000040f1c3 in ruby_exec () at eval.c:1558
#32 0x000000000040f1ed in ruby_run () at eval.c:1568
#33 0x000000000040cfb9 in main (argc=2, argv=0x7fbfff9768,
    envp=0x87f8b48fb894853) at main.c:46


>
>
> BTW, this ML is for Bugs tracker of SF.
> Please don't send your message here.

Well, I consider this stuff bugs, but I may be wrong. If you tell me again
I can switch ML.


/Johan