Hi Kefeng,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   a4412fdd49dc011bcc2c0d81ac4cab7457092650
commit: dd03762ab608e058c8f390ad9cf667e490089796 arm64: Enable KCSAN
date:   12 months ago
config: arm64-randconfig-r006-20221201
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 6e4cea55f0d1104408b26ac574566a0e4de48036)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dd03762ab608e058c8f390ad9cf667e490089796
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout dd03762ab608e058c8f390ad9cf667e490089796
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: __tsan_memset
   >>> referenced by main.c
   >>>               main.o:(init_setup) in archive init/built-in.a
   >>> referenced by main.c
   >>>               main.o:(rdinit_setup) in archive init/built-in.a
   >>> referenced by main.c
   >>>               main.o:(do_one_initcall) in archive init/built-in.a
   >>> referenced 8519 more times
--
>> ld.lld: error: undefined symbol: __tsan_memcpy
   >>> referenced by main.c
   >>>               main.o:(do_one_initcall) in archive init/built-in.a
   >>> referenced by initramfs.c
   >>>               initramfs.o:(panic_show_mem) in archive init/built-in.a
   >>> referenced by initramfs.c
   >>>               initramfs.o:(do_collect) in archive init/built-in.a
   >>> referenced 3922 more times
--
>> ld.lld: error: undefined symbol: __tsan_memmove
   >>> referenced by main.c
   >>>               main.o:(repair_env_string) in archive init/built-in.a
   >>> referenced by range.c
   >>>               range.o:(add_range_with_merge) in archive kernel/built-in.a
   >>> referenced by core.c
   >>>               bpf/core.o:(bpf_patch_insn_single) in archive kernel/built-in.a
   >>> referenced 88 more times

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp