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X-CSE-ConnectionGUID: er/yHzsCTmmEUMo1tAmPfQ== X-CSE-MsgGUID: QQo/Vic3Rd66kAqyucfmdQ== X-IronPort-AV: E=McAfee;i="6800,10657,11791"; a="80123885" X-IronPort-AV: E=Sophos;i="6.23,244,1770624000"; d="scan'208";a="80123885" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 May 2026 01:54:19 -0700 X-CSE-ConnectionGUID: Xg2MfWpKRzOZmCZ1FOo/6Q== X-CSE-MsgGUID: IONnLv9ZSxi3GAUuMKTc5g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,244,1770624000"; d="scan'208";a="245091782" Received: from lkp-server02.sh.intel.com (HELO 30e86e9c1927) ([10.239.97.151]) by fmviesa005.fm.intel.com with ESMTP; 20 May 2026 01:54:18 -0700 Received: from kbuild by 30e86e9c1927 with local (Exim 4.98.2) (envelope-from ) id 1wPcgk-000000002rf-3Dta; Wed, 20 May 2026 08:54:04 +0000 Date: Wed, 20 May 2026 16:53:23 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com Subject: ld.lld: error: undefined symbol: mem_cgroup_dmem_uncharge Message-ID: <202605201625.uzCWM4Cw-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: :::::: :::::: Manual check reason: "bisect to a FBC not belonging to original linux-review patches: branch: linux-review/Eric-Chanudet/mm-memcontrol-add-dmem-charge-uncharge-functions/20260520-000345, commit: 8c23ade377046c937570c234116eb210372657dd" :::::: BCC: lkp@intel.com CC: llvm@lists.linux.dev CC: oe-kbuild-all@lists.linux.dev TO: Eric Chanudet CC: 0day robot tree: https://github.com/intel-lab-lkp/linux/commits/Eric-Chanudet/mm-memcontrol-add-dmem-charge-uncharge-functions/20260520-000345 head: 8c23ade377046c937570c234116eb210372657dd commit: 8c23ade377046c937570c234116eb210372657dd cgroup/dmem: add dmem.memcg control file for double-charging to memcg date: 17 hours ago :::::: branch date: 17 hours ago :::::: commit date: 17 hours ago config: s390-randconfig-002-20260520 (https://download.01.org/0day-ci/archive/20260520/202605201625.uzCWM4Cw-lkp@intel.com/config) compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 5bac06718f502014fade905512f1d26d578a18f3) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260520/202605201625.uzCWM4Cw-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/r/202605201625.uzCWM4Cw-lkp@intel.com/ All errors (new ones prefixed by >>): >> ld.lld: error: undefined symbol: mem_cgroup_dmem_uncharge >>> referenced by dmem.c:674 (kernel/cgroup/dmem.c:674) >>> kernel/cgroup/dmem.o:(dmem_cgroup_uncharge) in archive vmlinux.a >>> referenced by dmem.c:766 (kernel/cgroup/dmem.c:766) >>> kernel/cgroup/dmem.o:(dmem_cgroup_try_charge) in archive vmlinux.a -- >> ld.lld: error: undefined symbol: mem_cgroup_dmem_charge >>> referenced by dmem.c:737 (kernel/cgroup/dmem.c:737) >>> kernel/cgroup/dmem.o:(dmem_cgroup_try_charge) in archive vmlinux.a -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki