--- x/lib/Kconfig.debug
+++ y/lib/Kconfig.debug
@@ -1396,7 +1396,7 @@ config LOCKDEP_BITS
 	int "Bitsize for MAX_LOCKDEP_ENTRIES"
 	depends on LOCKDEP && !LOCKDEP_SMALL
 	range 10 30
-	default 15
+	default 20
 	help
 	  Try increasing this value if you hit "BUG: MAX_LOCKDEP_ENTRIES too low!" message.