diff --git a/kernel/kexec.c b/kernel/kexec.c
index 5e4bd78..6fe74d3 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1570,6 +1570,7 @@ int kernel_kexec(void)
 #endif
 	{
 		kernel_restart_prepare(NULL);
+		disable_nonboot_cpus();
 		printk(KERN_EMERG "Starting new kernel\n");
 		machine_shutdown();
 	}