gtk thread segmentation faults..

[Owen Taylor]

On Thu, 2006-05-25 at 23:58 -0400, Sean wrote:
> With the latest rawhide, the following test program generates
> a segfault; backtrace below.   Is this a known problem?
> If not, where should it be reported?

Does it work if you call gtk_init() before gdk_threads_enter()? 
I wouldn't consider the code below normal, though I can't
*offhand* think of what problems it would cause.

If not, then install the -debuginfo packages, get a decent backtrace,
then report it either in Red Hat bugzilla or GNOME bugzilla; I
don't think either one is particular more right then the other;
it probably would be an upstream bug, but it's hard to say.

					Owen

> Thanks
> Sean
> 
> #include <gtk/gtk.h>
> int main (int argc, char *argv[])
> {
>         GtkWidget *window;
> 
>         g_thread_init(NULL);
>         gdk_threads_init();
>         gdk_threads_enter();
> 
>         gtk_init(&argc, &argv);
> 
>         window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
>         gtk_widget_show(window);
> 
>         gtk_main();
>         gdk_threads_leave();
> 
>         return 0;
> }
> 
> 
> [Thread debugging using libthread_db enabled]
> [New Thread -1208662336 (LWP 20050)]
> 
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread -1208662336 (LWP 20050)]
> 0x00acb27e in pthread_mutex_trylock () from /lib/libpthread.so.0
> (gdb) bt
> #0  0x00acb27e in pthread_mutex_trylock () from /lib/libpthread.so.0
> #1  0x00b481cd in g_thread_init () from /usr/lib/libgthread-1.2.so.0
> #2  0x00c97a2f in g_slice_alloc () from /lib/libglib-2.0.so.0
> #3  0x00c741a9 in g_hash_table_new_full () from /lib/libglib-2.0.so.0
> #4  0x00c74228 in g_hash_table_new () from /lib/libglib-2.0.so.0
> #5  0x00c6dc76 in g_quark_from_static_string () from /lib/libglib-2.0.so.0
> #6  0x005016db in g_type_init_with_debug_flags () from /lib/libgobject-2.0.so.0
> #7  0x005018b2 in g_type_init () from /lib/libgobject-2.0.so.0
> #8  0x00124118 in gdk_pre_parse_libgtk_only () from /usr/lib/libgdk-x11-2.0.so.0
> #9  0x0072ae65 in gtk_init_with_args () from /usr/lib/libgtk-x11-2.0.so.0
> #10 0x00c8d66d in g_option_context_parse () from /lib/libglib-2.0.so.0
> #11 0x0072a96c in gtk_parse_args () from /usr/lib/libgtk-x11-2.0.so.0
> #12 0x0072a9e4 in gtk_init_check () from /usr/lib/libgtk-x11-2.0.so.0
> #13 0x0072aa24 in gtk_init () from /usr/lib/libgtk-x11-2.0.so.0
> #14 0x08065229 in main (argc=1, argv=0xbf875344) at qtry.c:11
>