Minified pure gtk threads test and gdb session

gdb-session

[lorne@xenon ~]$ cat crashme.c
#include <gtk/gtk.h>
int main() {
  gdk_threads_init();
  gtk_main();
}
[lorne@xenon ~]$ cc -g `pkg-config --cflags --libs gtk+-2.0` -o crashme crashme.c
[lorne@xenon ~]$ gdb ./crashme
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This GDB was configured as "amd64-marcel-freebsd"...
(gdb) run
Starting program: /usr/home/lorne/crashme 
[New LWP 100107]
[New Thread 808007400 (LWP 100107/crashme)]
GLib (gthread-posix.c): Unexpected error from C library during 'pthread_mutex_unlock': Operation not permitted.  Aborting.

Program received signal SIGABRT, Aborted.
[Switching to Thread 808007400 (LWP 100107/crashme)]
0x000000080478824c in thr_kill () from /lib/libc.so.7
(gdb) up
#1  0x000000080482a85b in abort () from /lib/libc.so.7
(gdb) up
#2  0x0000000803bc572e in g_thread_abort (status=Could not find the frame base for "g_thread_abort".
) at gthread-posix.c:76
76	  abort ();
(gdb) list
71	g_thread_abort (gint         status,
72	                const gchar *function)
73	{
74	  fprintf (stderr, "GLib (gthread-posix.c): Unexpected error from C library during '%s': %s.  Aborting.\n",
75	           function, strerror (status));
76	  abort ();
77	}
78	
79	/* {{{1 GMutex */
80	
(gdb) up
#3  0x0000000803bc58d5 in g_mutex_unlock (mutex=0x808068320)
    at gthread-posix.c:230
230	    g_thread_abort (status, "pthread_mutex_unlock");
(gdb) list
225	g_mutex_unlock (GMutex *mutex)
226	{
227	  gint status;
228	
229	  if G_UNLIKELY ((status = pthread_mutex_unlock (g_mutex_get_impl (mutex))) != 0)
230	    g_thread_abort (status, "pthread_mutex_unlock");
231	}
232	
233	/**
234	 * g_mutex_trylock:
(gdb) up
#4  0x0000000800f801d2 in gdk_threads_impl_unlock () at gdk.c:437
437	    g_mutex_unlock (gdk_threads_mutex);
(gdb) list
432	
433	static void
434	gdk_threads_impl_unlock (void)
435	{
436	  if (gdk_threads_mutex)
437	    g_mutex_unlock (gdk_threads_mutex);
438	}
439	
440	/**
441	 * gdk_threads_init:
(gdb) up
#5  0x00000008009b2513 in IA__gtk_main () at gtkmain.c:1256
1256	      GDK_THREADS_LEAVE ();
(gdb) list
1251	    }
1252	  g_list_free (functions);
1253	
1254	  if (g_main_loop_is_running (main_loops->data))
1255	    {
1256	      GDK_THREADS_LEAVE ();
1257	      g_main_loop_run (loop);
1258	      GDK_THREADS_ENTER ();
1259	      gdk_flush ();
1260	    }
(gdb)