diff --git a/kernel/kernel_config-4.9.x b/kernel/kernel_config-4.9.x
index e5991b2ed..f45f46507 100644
--- a/kernel/kernel_config-4.9.x
+++ b/kernel/kernel_config-4.9.x
@@ -514,7 +514,7 @@ CONFIG_BOUNCE=y
 CONFIG_VIRT_TO_BUS=y
 CONFIG_MMU_NOTIFIER=y
 CONFIG_KSM=y
-CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
+CONFIG_DEFAULT_MMAP_MIN_ADDR=65536
 CONFIG_TRANSPARENT_HUGEPAGE=y
 CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
 # CONFIG_TRANSPARENT_HUGEPAGE_MADVISE is not set
diff --git a/kernel/kernel_config-4.9.x-aarch64 b/kernel/kernel_config-4.9.x-aarch64
index fe1d7eaee..d1e5c574e 100644
--- a/kernel/kernel_config-4.9.x-aarch64
+++ b/kernel/kernel_config-4.9.x-aarch64
@@ -479,7 +479,7 @@ CONFIG_PHYS_ADDR_T_64BIT=y
 CONFIG_BOUNCE=y
 CONFIG_MMU_NOTIFIER=y
 CONFIG_KSM=y
-CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
+CONFIG_DEFAULT_MMAP_MIN_ADDR=32768
 CONFIG_TRANSPARENT_HUGEPAGE=y
 CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
 # CONFIG_TRANSPARENT_HUGEPAGE_MADVISE is not set