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References: <20230811233556.97161-8-samitolvanen@google.com> <202308122238.XLMMmeL0-lkp@intel.com>
In-Reply-To: <202308122238.XLMMmeL0-lkp@intel.com>
From:   Guo Ren <guoren@kernel.org>
Date:   Sun, 13 Aug 2023 09:25:10 +0800
Message-ID: <CAJF2gTQmezqnJo68CuV8e+=RwCAioKbk0UqTS_fq5--HjUTLDw@mail.gmail.com>
Subject: Re: [PATCH 1/5] riscv: VMAP_STACK overflow detection thread-safe
To:     Sami Tolvanen <samitolvanen@google.com>
Cc:     Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Kees Cook <keescook@chromium.org>, llvm@lists.linux.dev,
        kernel test robot <lkp@intel.com>,
        oe-kbuild-all@lists.linux.dev, Deepak Gupta <debug@rivosinc.com>,
        Nathan Chancellor <nathan@kernel.org>,
        Nick Desaulniers <ndesaulniers@google.com>,
        Fangrui Song <maskray@google.com>,
        linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
        Jisheng Zhang <jszhang@kernel.org>
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On Sat, Aug 12, 2023 at 10:36=E2=80=AFPM kernel test robot <lkp@intel.com> =
wrote:
>
> 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/risc=
v-VMAP_STACK-overflow-detection-thread-safe/20230812-073751
> base:   52a93d39b17dc7eb98b6aa3edb93943248e03b2f
> patch link:    https://lore.kernel.org/r/20230811233556.97161-8-samitolva=
nen%40google.com
> patch subject: [PATCH 1/5] riscv: VMAP_STACK overflow detection thread-sa=
fe
> config: riscv-randconfig-r042-20230812 (https://download.01.org/0day-ci/a=
rchive/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 vers=
ion of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@intel.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_overf=
low) in archive vmlinux.a
!CONFIG_SMP missed

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


--=20
Best Regards
 Guo Ren