diff -u linux-2.6.12/include/asm-i386/kdebug.h linux-2.6.12-pdb/include/asm-i386/kdebug.h
--- linux-2.6.12/include/asm-i386/kdebug.h	2005-06-17 20:48:29.000000000 +0100
+++ linux-2.6.12-pdb/include/asm-i386/kdebug.h	2005-08-01 11:11:53.000000000 +0100
@@ -21,6 +21,7 @@
    If you really want to do it first unregister - then synchronize_kernel - then free.
   */
 int register_die_notifier(struct notifier_block *nb);
+int unregister_die_notifier(struct notifier_block *nb);
 extern struct notifier_block *i386die_chain;