--- zzzz-none-000/linux-3.10.107/arch/arm/mach-imx/hotplug.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/arm/mach-imx/hotplug.c	2021-02-04 17:41:59.000000000 +0000
@@ -52,7 +52,9 @@
 	 * the register being cleared to kill the cpu.
 	 */
 	imx_set_cpu_arg(cpu, ~0);
-	cpu_do_idle();
+
+	while (1)
+		cpu_do_idle();
 }
 
 int imx_cpu_kill(unsigned int cpu)