Misc fixes: - Fix a secondary CPUs enumeration regression caused by creative MADT APIC table entries on certain systems. - Fix a race in the NOP-patcher that can spuriously trigger crashes on bootup. - Fix a bootup failure regression caused by the parallel bringup code, caused by firmware inconsistency between the APIC initialization states of the boot and secondary CPUs, on certain systems. Signed-off-by: Ingo Molnar <mingo@kernel.org>