Re: Seg Fault using offscreen patch

[Tim Janik <timj gtk org>]

On Tue, 22 Jan 2008, iluvlinux wrote:

> hi
>  i am trying to use the offscreen patch that is  available at
> http://bugzilla.gnome.org/show_bug.cgi?id=318807
> http://bugzilla.gnome.org/show_bug.cgi?id=318807
>
> some times i get segfault while pressing a button or checking a check box (i
> have tried with these two widgets till now)
>
> Actually i am trying to use a clutter-stage embedded in a GtkWindow and than
> i take snapshot of the window and try to display it on clutter stage.

> Program received signal SIGSEGV, Segmentation fault.
> gdk_event_translate (display=0x310088, event=0x312240, xevent=0xbebb1c38,
> return_exposes=0) at gdkevents-x11.c:953
> 953           window_impl = GDK_WINDOW_IMPL_X11 (window_private->impl);
> (gdb) bt
> #0  gdk_event_translate (display=0x310088, event=0x312240,
> xevent=0xbebb1c38, return_exposes=0) at gdkevents-x11.c:953
> #1  0x404b9d60 in _gdk_events_queue (display=0x310088) at
> gdkevents-x11.c:2297
> #2  0x404b9f58 in gdk_event_dispatch (source=0x3, callback=0xc00019,
> user_data=0x313a20) at gdkevents-x11.c:2358
> #3  0x4079b750 in IA__g_main_context_dispatch (context=0x305338) at
> gmain.c:2061
> #4  0x4079d4f4 in g_main_context_iterate (context=0x305338, block=1,
> dispatch=1, self=0x3dfcd8) at gmain.c:2694
> #5  0x4079d854 in IA__g_main_loop_run (loop=0x492c58) at gmain.c:2898
> #6  0x4024b7e0 in IA__gtk_main () at gtkmain.c:1144
> #7  0x0000a7b8 in main (argc=1, argv=0xbebb1e34) at theme_main.c:318
> (gdb) p window_impl
> $1 = (GdkWindowImplX11 *) 0x0

please provide the backtrace in the bug tracker, along with
information of what glib/gtk version you were using, and if
you had to apply any additional changes apart from the offscreen
patch. most importantly, please provide exact information on
how to reproduce the segfault, we can't help you fix it
otherwise.


---
ciaoTJ