BOOT_USER_PGD_PTRS 156 include/asm-frv/pgtable.h #define BOOT_KERNEL_PGD_PTRS (PTRS_PER_PGD - BOOT_USER_PGD_PTRS) BOOT_USER_PGD_PTRS 75 include/asm-mn10300/pgtable.h #define BOOT_KERNEL_PGD_PTRS (1024 - BOOT_USER_PGD_PTRS)