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diff -u linux-2.6.12/arch/xen/i386/kernel/traps.c linux-2.6.12-pdb/arch/xen/i386/kernel/traps.c
--- linux-2.6.12/arch/xen/i386/kernel/traps.c 2005-07-31 22:47:00.000000000 +0100
+++ linux-2.6.12-pdb/arch/xen/i386/kernel/traps.c 2005-07-31 22:47:32.000000000 +0100
@@ -102,6 +102,16 @@
return err;
}
+int unregister_die_notifier(struct notifier_block *nb)
+{
+ int err = 0;
+ unsigned long flags;
+ spin_lock_irqsave(&die_notifier_lock, flags);
+ err = notifier_chain_unregister(&i386die_chain, nb);
+ spin_unlock_irqrestore(&die_notifier_lock, flags);
+ return err;
+}
+
static inline int valid_stack_ptr(struct thread_info *tinfo, void *p)
{
return p > (void *)tinfo &&
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