diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index 85e4804..c8a0ca2 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -478,8 +478,13 @@
 	if (action == CPU_ONLINE && pr) {
 		acpi_processor_ppc_has_changed(pr, 0);
 		acpi_processor_cst_has_changed(pr);
+		acpi_processor_reevaluate_tstate(pr, action);
 		acpi_processor_tstate_has_changed(pr);
 	}
+	if (action == CPU_DEAD && pr) {
+		/* invalidate the flag.throttling after one CPU is offline */
+		acpi_processor_reevaluate_tstate(pr, action);
+	}
 	return NOTIFY_OK;
 }