And I have a crash in kernel file arch/arm64/mm/mmu.c function __create_pgd_mapping when I change u-boot "U-Boot 2019.04-4.19.35-1.1.0+g9d5089bdf4" for growing up my ram size. Call stack : [ 0.000000] Call trace:[ 0.000000] __create_pgd_mapping+0x7c/0x7a8 ...