diff --git a/arch/s390/configs/debug_defconfig b/arch/s390/configs/debug_defconfig
index c924be0d7ed8..d0c44973dd09 100644
--- a/arch/s390/configs/debug_defconfig
+++ b/arch/s390/configs/debug_defconfig
@@ -824,6 +824,8 @@ CONFIG_TEST_LOCKUP=m
 CONFIG_DEBUG_PREEMPT=y
 CONFIG_PROVE_LOCKING=y
 CONFIG_LOCK_STAT=y
+CONFIG_LOCKDEP_BITS=16
+CONFIG_LOCKDEP_CHAINS_BITS=17
 CONFIG_DEBUG_ATOMIC_SLEEP=y
 CONFIG_DEBUG_LOCKING_API_SELFTESTS=y
 CONFIG_DEBUG_IRQFLAGS=y