--- arch/x86/kernel/smpboot.c

+++ arch/x86/kernel/smpboot.c

@@ -1066,9 +1066,7 @@ void __init native_smp_prepare_cpus(unsi

set_cpu_sibling_map(0);

enable_IR_x2apic();

-#ifdef CONFIG_X86_64

default_setup_apic_routing();

-#endif

if (smp_sanity_check(max_cpus) < 0) {

printk(KERN_INFO "SMP disabled\n");