linux-kernel - Re: [PATCH 1/5] riscv: VMAP_STACK overflow detection thread-safe

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Date:   Sat, 12 Aug 2023 22:35:49 +0800
From:   kernel test robot <lkp@...el.com>
To:     Sami Tolvanen <samitolvanen@...gle.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Kees Cook <keescook@...omium.org>
Cc:     llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
        Guo Ren <guoren@...nel.org>, Deepak Gupta <debug@...osinc.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Fangrui Song <maskray@...gle.com>,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Jisheng Zhang <jszhang@...nel.org>
Subject: Re: [PATCH 1/5] riscv: VMAP_STACK overflow detection thread-safe

Hi Sami,

kernel test robot noticed the following build errors:

[auto build test ERROR on 52a93d39b17dc7eb98b6aa3edb93943248e03b2f]

url:    https://github.com/intel-lab-lkp/linux/commits/Sami-Tolvanen/riscv-VMAP_STACK-overflow-detection-thread-safe/20230812-073751
base:   52a93d39b17dc7eb98b6aa3edb93943248e03b2f
patch link:    https://lore.kernel.org/r/20230811233556.97161-8-samitolvanen%40google.com
patch subject: [PATCH 1/5] riscv: VMAP_STACK overflow detection thread-safe
config: riscv-randconfig-r042-20230812 (https://download.01.org/0day-ci/archive/20230812/202308122238.XLMMmeL0-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce: (https://download.01.org/0day-ci/archive/20230812/202308122238.XLMMmeL0-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202308122238.XLMMmeL0-lkp@intel.com/

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: __per_cpu_offset
   >>> referenced by arch/riscv/kernel/entry.o:(handle_kernel_stack_overflow) in archive vmlinux.a

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki