On Mon, 9 Jan 2023 at 14:31, kernel test robot <lkp@xxxxxxxxx> wrote: > > tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > branch HEAD: 543b9b2fe10b2e12b8d773af65314d322f91e479 Add linux-next specific files for 20230109 > > Error/Warning: (recently discovered and may have been fixed) > > aarch64-linux-ld: ID map text too big or misaligned This is caused by linker veneers ('stubs') that are emitted into the ID map text section: *(.idmap.text) .idmap.text 0xffffffc018c04000 0x38 arch/arm64/kernel/hyp-stub.o .idmap.text 0xffffffc018c04038 0x28 arch/arm64/kernel/sleep.o 0xffffffc018c04038 cpu_resume .idmap.text 0xffffffc018c04060 0x38 arch/arm64/kernel/cpu-reset.o 0xffffffc018c04060 cpu_soft_restart .idmap.text 0xffffffc018c04098 0x468 arch/arm64/kernel/head.o 0xffffffc018c04098 init_kernel_el 0xffffffc018c04290 secondary_holding_pen 0xffffffc018c042c8 secondary_entry 0xffffffc018c043c4 __enable_mmu 0xffffffc018c0440c __cpu_secondary_check52bitva .idmap.text 0xffffffc018c04500 0x3c4 arch/arm64/mm/proc.o 0xffffffc018c04500 cpu_do_resume 0xffffffc018c045a8 idmap_cpu_replace_ttbr1 0xffffffc018c045d4 idmap_kpti_install_ng_mappings 0xffffffc018c047bc __cpu_setup *fill* 0xffffffc018c048c4 0x4 .idmap.text.stub 0xffffffc018c048c8 0xf7c8 linker stubs 0xffffffc018c1c8c8 __idmap_text_end = . It seems unlikely that the entire .idmap.text.stub section is dedicated to veneers for code in .idmap.text, and the linker probably dumps them here because the next output section is non-executable. I have patches on the list that move the ID map out of the .text section altogether (among other things) and this seems like a suitable workaround for this issue as well. https://lore.kernel.org/all/20221129161418.1968319-3-ardb@xxxxxxxxxx/
