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
When disabling a cpu all external interrupt subclass masks in control register 0 get cleared. However instead of the service signal subclass mask bit an unused bit got cleared. Accidently (or luckily) the service subclass mask gets cleared with the pfault_fini() call that happens just before the rest of the subclass mask bits get cleared. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>