The default page size on the 64-bit Arm (aarch64) platform has changed to 4 KB, from the previous 64 KB default. The new 4 KB size pairs well with the workloads and memory amounts that exist on the majority of Arm-based systems.

This change has important implications if you intend to upgrade kernel from a previous release of UEK. See About Upgrading From a Previous Oracle Linux or UEK Release to UEK R7 for more information.

For information about other known issues that are related to this important change, see Known Issues.