gtk thread segmentation faults..

[Erwin Rol]

I bet you tried to link with -lgthead instead of -lgthead-2.0. 

gcc `pkg-config --cflags --libs gtk+-2.0 gthread-2.0` -g gtk_test.c

That works fine for me, but the following gives exactly your error;

gcc `pkg-config --cflags --libs gtk+-2.0 gthread` -g gtk_test.c

- Erwin


On Fri, 2006-05-26 at 05:22 -0400, Owen Taylor wrote:
> 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
> > 
>