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X-CSE-ConnectionGUID: cvHybH2QSLSbm85NgjI7Hw== X-CSE-MsgGUID: vanDsug7RCKKEiOoMpT2Pg== X-IronPort-AV: E=McAfee;i="6800,10657,11651"; a="68413717" X-IronPort-AV: E=Sophos;i="6.21,171,1763452800"; d="scan'208";a="68413717" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by fmvoesa108.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Dec 2025 12:14:20 -0800 X-CSE-ConnectionGUID: QnJWK2WtT4uPJI+Be+Edfg== X-CSE-MsgGUID: f2FXaJM6TJqSc9UYVenP+g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,171,1763452800"; d="scan'208";a="204361881" Received: from lkp-server02.sh.intel.com (HELO dd3453e2b682) ([10.239.97.151]) by fmviesa005.fm.intel.com with ESMTP; 23 Dec 2025 12:14:16 -0800 Received: from kbuild by dd3453e2b682 with local (Exim 4.98.2) (envelope-from ) id 1vY8lp-000000002Kl-3Rvp; Tue, 23 Dec 2025 20:14:13 +0000 Date: Wed, 24 Dec 2025 04:14:09 +0800 From: kernel test robot To: Yazhou Tang , bpf@vger.kernel.org Cc: oe-kbuild-all@lists.linux.dev, ast@kernel.org, daniel@iogearbox.net, john.fastabend@gmail.com, andrii@kernel.org, martin.lau@linux.dev, eddyz87@gmail.com, song@kernel.org, yonghong.song@linux.dev, kpsingh@kernel.org, sdf@fomichev.me, haoluo@google.com, jolsa@kernel.org, tangyazhou518@outlook.com, shenghaoyuan0928@163.com, ziye@zju.edu.cn Subject: Re: [PATCH bpf-next 1/2] bpf: Add interval and tnum analysis for signed and unsigned BPF_DIV Message-ID: <202512240306.FBKF27IL-lkp@intel.com> References: Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Hi Yazhou, kernel test robot noticed the following build errors: [auto build test ERROR on bpf-next/master] url: https://github.com/intel-lab-lkp/linux/commits/Yazhou-Tang/selftests-bpf-Add-tests-for-BPF_DIV-analysis/20251221-174300 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master patch link: https://lore.kernel.org/r/tencent_7C98FAECA40C98489ACF4515CE346F031509%40qq.com patch subject: [PATCH bpf-next 1/2] bpf: Add interval and tnum analysis for signed and unsigned BPF_DIV config: i386-randconfig-051-20251222 (https://download.01.org/0day-ci/archive/20251224/202512240306.FBKF27IL-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251224/202512240306.FBKF27IL-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/202512240306.FBKF27IL-lkp@intel.com/ All errors (new ones prefixed by >>): >> ld.lld: error: undefined symbol: __divdi3 >>> referenced by tnum.c:300 (kernel/bpf/tnum.c:300) >>> kernel/bpf/tnum.o:(tnum_sdiv) in archive vmlinux.a >>> referenced by verifier.c:15227 (kernel/bpf/verifier.c:15227) >>> kernel/bpf/verifier.o:(scalar_min_max_sdiv) in archive vmlinux.a >>> referenced by verifier.c:15227 (kernel/bpf/verifier.c:15227) >>> kernel/bpf/verifier.o:(scalar_min_max_sdiv) in archive vmlinux.a >>> referenced 6 more times -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki