On Sun, 2020-10-25 at 12:15 +0200, Mike Rapoport wrote: > Indeed, for architectures that define CONFIG_ARCH_HAS_SET_DIRECT_MAP > it is > possible that __kernel_map_pages() would fail, but since this > function is > void, the failure will go unnoticed. Could you elaborate on how this could happen? Do you mean during runtime today or if something new was introduced?