diff --git a/[refs] b/[refs]
index 76868de1fb7e..4f8db93c1b8a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 226d780909f71bebfa4dfffa21493244aa22dfdc
+refs/heads/master: 76b461c21468f41837283b7888d55f1c0671f719
diff --git a/trunk/drivers/acpi/processor_idle.c b/trunk/drivers/acpi/processor_idle.c
index be2dae52f6fa..3bfca093a870 100644
--- a/trunk/drivers/acpi/processor_idle.c
+++ b/trunk/drivers/acpi/processor_idle.c
@@ -899,7 +899,7 @@ static int acpi_processor_power_verify(struct acpi_processor *pr)
 		case ACPI_STATE_C3:
 			acpi_processor_power_verify_c3(pr, cx);
 #ifdef ARCH_APICTIMER_STOPS_ON_C3
-			if (c->x86_vendor == X86_VENDOR_INTEL) {
+			if (cx->valid && c->x86_vendor == X86_VENDOR_INTEL) {
 				on_each_cpu(switch_APIC_timer_to_ipi,
 						&mask, 1, 1);
 			}