Re: Call to gtk_main() crashes

[Tristan Van Berkom <tristan van berkom gmail com>]

On Wednesday, April 29, 2009, RNG <rgasch gmail com> wrote:
> Hi,
>
> following your suggestion, I've added a call to gtk_init() at the
> beginning of main() but the program still crashes. The end of the
> stack trace now displays a different memory address but otherwise it's
> essentially the same

All I read from the stack trace is
a possible double free in a clicked
handler, you say this happens at
startup ? Do you programatically
somehow send events from an idle
or such?

  -Tristan





> ---------- snip --------------
> #21 0xb7846036 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
> #22 0xb73f03c9 in ?? () from /usr/lib/libgobject-2.0.so.0
> #23 0xb73f1c4b in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
> #24 0xb7407d3d in ?? () from /usr/lib/libgobject-2.0.so.0
> #25 0xb740962b in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
> #26 0xb7409c26 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
> #27 0xb795b33e in ?? () from /usr/lib/libgtk-x11-2.0.so.0
> #28 0xb783eb4c in gtk_propagate_event () from /usr/lib/libgtk-x11-2.0.so.0
> #29 0xb783fef7 in gtk_main_do_event () from /usr/lib/libgtk-x11-2.0.so.0
> #30 0xb76d650a in ?? () from /usr/lib/libgdk-x11-2.0.so.0
> #31 0xb7364718 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
> #32 0xb7367dc3 in ?? () from /usr/lib/libglib-2.0.so.0
> #33 0xb73682e2 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
> #34 0xb78403a9 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
> #35 0x0805688a in main (argc=Cannot access memory at address 0xffffffff
> ) at main.c:
>
> Any more ideas as to what could be wrong?
>
> Greetings/Thanks
> Robert
>
> 2009/4/29 Fernando Apesteguía <fernando apesteguia gmail com>:
> > On Wed, Apr 29, 2009 at 8:38 AM, RNG <rgasch gmail com> wrote:
> > > Hi,
> > >
> > > I am trying to get an old application to work using glade2. I've
> > > managed to get it to compile but the call to
> > >  gtk_main();
> > > crashes the application. The backtrace looks like this:
> > >
> > > (gdb) bt
> > > #0  0xb8041422 in __kernel_vsyscall ()
> > > #1  0xb7244880 in raise () from /lib/tls/i686/cmov/libc.so.6
> > > #2  0xb7246248 in abort () from /lib/tls/i686/cmov/libc.so.6
> > > #3  0xb728210d in ?? () from /lib/tls/i686/cmov/libc.so.6
> > > #4  0xb72883f4 in ?? () from /lib/tls/i686/cmov/libc.so.6
> > > #5  0xb73f8c26 in g_free () from /usr/lib/libglib-2.0.so.0
> > > #6  0xb748b3d4 in g_cclosure_marshal_VOID__VOID ()
> > >   from /usr/lib/libgobject-2.0.so.0
> > > #7  0xb747dc4b in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
> > > #8  0xb7494095 in ?? () from /usr/lib/libgobject-2.0.so.0
> > > #9  0xb74957ac in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
> > > #10 0xb7495c26 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
> > > #11 0xb781deaa in gtk_button_clicked () from /usr/lib/libgtk-x11-2.0.so.0
> > > #12 0xb781ef58 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
> > > #13 0xb748b3d4 in g_cclosure_marshal_VOID__VOID ()
> > >   from /usr/lib/libgobject-2.0.so.0
> > > #14 0xb747c3c9 in ?? () from /usr/lib/libgobject-2.0.so.0
> > > #15 0xb747dc4b in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
> > > #16 0xb74938ee in ?? () from /usr/lib/libgobject-2.0.so.0
> > > #17 0xb74957ac in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
> > > #18 0xb7495c26 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
> > > #19 0xb781df4a in gtk_button_released () from /usr/lib/libgtk-x11-2.0.so.0
> > > #20 0xb781df83 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
> > > #21 0xb78d2036 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
> > > #22 0xb747c3c9 in ?? () from /usr/lib/libgobject-2.0.so.0
> > > #23 0xb747dc4b in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
> > > #24 0xb7493d3d in ?? () from /usr/lib/libgobject-2.0.so.0
> > > #25 0xb749562b in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
> > > #26 0xb7495c26 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
> > > #27 0xb79e733e in ?? () from /usr/lib/libgtk-x11-2.0.so.0
> > > #28 0xb78cab4c in gtk_propagate_event () from /usr/lib/libgtk-x11-2.0.so.0
> > > #29 0xb78cbef7 in gtk_main_do_event () from /usr/lib/libgtk-x11-2.0.so.0
> > > #30 0xb776250a in ?? () from /usr/lib/libgdk-x11-2.0.so.0
> > > #31 0xb73f0718 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
> > > #32 0xb73f3dc3 in ?? () from /usr/lib/libglib-2.0.so.0
> > > #33 0xb73f42e2 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
> > > #34 0xb78cc3a9 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
> > > #35 0x08056842 in main (argc=Cannot access memory at address 0x12ff
> > > ) at main.c:278
> > > (gdb)
> > >
> > > Any ides what may be causing this and how to fix it?
> >
> > Do you call gtk_init() before doing any other gtk related tasks?
> >
> > If you are using threads, do you call gdk_threads_init() and use
> > gdk_threads_enter() and gdk_threads_leave()?
> >
> > Cheers
> >
> > > Greetings/Thanks
> > > Robert
> > > _______________________________________________
> > > gtk-app-devel-list mailing list
> > > gtk-app-devel-list gnome org
> > > http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
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