diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index b5005b7..52c2172 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -856,6 +856,19 @@
 	  RCU grace period persists, additional CPU stall warnings are
 	  printed at more widely spaced intervals.
 
+config RCU_CPU_STALL_DETECTOR_RUNNABLE
+	bool "RCU CPU stall checking starts automatically at boot"
+	depends on RCU_CPU_STALL_DETECTOR
+	default y
+	help
+	  If set, start checking for RCU CPU stalls immediately on
+	  boot.  Otherwise, RCU CPU stall checking must be manually
+	  enabled.
+
+	  Say Y if you are unsure.
+
+	  Say N if you wish to suppress RCU CPU stall checking during boot.
+
 config RCU_CPU_STALL_VERBOSE
 	bool "Print additional per-task information for RCU_CPU_STALL_DETECTOR"
 	depends on RCU_CPU_STALL_DETECTOR && TREE_PREEMPT_RCU