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Peter Anvin" , Andrew Morton , "Liam R. Howlett" , Vlastimil Babka , Lorenzo Stoakes , Paul Walmsley , Palmer Dabbelt , Albert Ou , Conor Dooley , Rob Herring , Krzysztof Kozlowski , Arnd Bergmann , Christian Brauner , Peter Zijlstra , Oleg Nesterov , Eric Biederman , Kees Cook , Jonathan Corbet , Shuah Khan , Jann Horn , Miguel Ojeda , Alex Gaynor , Boqun Feng , Gary Guo Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Linux Memory Management List Subject: Re: [PATCH v14 22/27] riscv: enable kernel access to shadow stack memory via FWFT sbi call Message-ID: <202505020341.ZT3z5hbk-lkp@intel.com> References: <20250429-v5_user_cfi_series-v14-22-5239410d012a@rivosinc.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250429-v5_user_cfi_series-v14-22-5239410d012a@rivosinc.com> X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 7BB4680010 X-Stat-Signature: ptyukmggmgoxyqhmrrha1rr1nzfipsub X-Rspam-User: X-HE-Tag: 1746128432-693051 X-HE-Meta: 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 UKeqeoOJ Dq6j1nSN6LHKRG/HA5Y2ds/2sfZaFMzcKXk7n8RpjOMp12uGZYtzulP7TGzlp8oL/1b2zWhkJdDsRd7TAH1DLqmz9b96bRP5jJHyA2EpuCEE0IPX+ObmXNOuERX1Jdav7dmLkKMcIWYI9eJtx5ZqoSvDGIfjNETKmTBUDcyWVunmm7Pzn4vI//FbwsBH6sg2HuZqHAA2TkiKHGvMbHa4srSimKNfCCBwfeT588KzlRnIE8STrD1A08dNc0Aq2pDs5J1z9yPBOpDUevU6ke8xlh5dGwWikpMfB5Yj6Gz1Tw06x437ozVPt7qplWLF85waJwaNbyKJCTfoX04UlD0FOVJAUjwtdxho7CExkuTbo68A+8xru4yj9iw+hSMDX5MugXQBG1RXjY1nrL8Sstm1LrDL8ORDtibhqe6FWStVsbkqLNHKTA3DcpYh6Ubi/RyZLNg8itN5SD3R/sgw= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Deepak, kernel test robot noticed the following build errors: [auto build test ERROR on 4181f8ad7a1061efed0219951d608d4988302af7] url: https://github.com/intel-lab-lkp/linux/commits/Deepak-Gupta/mm-VM_SHADOW_STACK-definition-for-riscv/20250430-082727 base: 4181f8ad7a1061efed0219951d608d4988302af7 patch link: https://lore.kernel.org/r/20250429-v5_user_cfi_series-v14-22-5239410d012a%40rivosinc.com patch subject: [PATCH v14 22/27] riscv: enable kernel access to shadow stack memory via FWFT sbi call config: riscv-randconfig-001-20250501 (https://download.01.org/0day-ci/archive/20250502/202505020341.ZT3z5hbk-lkp@intel.com/config) compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project f819f46284f2a79790038e1f6649172789734ae8) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250502/202505020341.ZT3z5hbk-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202505020341.ZT3z5hbk-lkp@intel.com/ All errors (new ones prefixed by >>): >> ld.lld: error: undefined symbol: riscv_nousercfi >>> referenced by head.S:77 (arch/riscv/kernel/head.S:77) >>> arch/riscv/kernel/head.o:(_start_kernel) in archive vmlinux.a -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki