diff --git a/init/Kconfig b/init/Kconfig
index 2934249fba46746253b89d14f581547ada3d0bad..690a381adee0d164f52c9984f61c0d710c54c089 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -461,10 +461,14 @@ endmenu # "CPU/Task time and stats accounting"
 
 config CPU_ISOLATION
 	bool "CPU isolation"
+	default y
 	help
 	  Make sure that CPUs running critical tasks are not disturbed by
 	  any source of "noise" such as unbound workqueues, timers, kthreads...
-	  Unbound jobs get offloaded to housekeeping CPUs.
+	  Unbound jobs get offloaded to housekeeping CPUs. This is driven by
+	  the "isolcpus=" boot parameter.
+
+	  Say Y if unsure.
 
 source "kernel/rcu/Kconfig"