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X-CSE-ConnectionGUID: t5CWbwgGRRmYZUUuwaxsTg== X-CSE-MsgGUID: 2hLmZ7tbRQefJePaBRjQgA== X-IronPort-AV: E=McAfee;i="6800,10657,11635"; a="67687998" X-IronPort-AV: E=Sophos;i="6.20,256,1758610800"; d="scan'208";a="67687998" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Dec 2025 13:12:46 -0800 X-CSE-ConnectionGUID: fJ01Gs0pSjCdMMW8DsXsPg== X-CSE-MsgGUID: +0ui6J9KTYquXH0qhk6wRg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,151,1763452800"; d="scan'208";a="228482533" Received: from lkp-server02.sh.intel.com (HELO 034c7e8e53c3) ([10.239.97.151]) by orviesa002.jf.intel.com with ESMTP; 15 Dec 2025 13:12:44 -0800 Received: from kbuild by 034c7e8e53c3 with local (Exim 4.98.2) (envelope-from ) id 1vVFs1-000000000mT-0ThQ; Mon, 15 Dec 2025 21:12:41 +0000 Date: Tue, 16 Dec 2025 05:12:16 +0800 From: kernel test robot To: Vernon Yang , akpm@linux-foundation.org, david@kernel.org, lorenzo.stoakes@oracle.com Cc: oe-kbuild-all@lists.linux.dev, ziy@nvidia.com, npache@redhat.com, baohua@kernel.org, lance.yang@linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Vernon Yang Subject: Re: [PATCH 3/4] mm: khugepaged: move mm to list tail when MADV_COLD/MADV_FREE Message-ID: <202512160400.pTmarqg6-lkp@intel.com> References: <20251215090419.174418-4-yanglincheng@kylinos.cn> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251215090419.174418-4-yanglincheng@kylinos.cn> X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 9EE56180006 X-Stat-Signature: nkwkgrowhf3ewbuk4z583ffh8uu8o1bm X-Rspam-User: X-HE-Tag: 1765833167-371700 X-HE-Meta: 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 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 Vernon, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] [also build test ERROR on linus/master v6.19-rc1 next-20251215] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Vernon-Yang/mm-khugepaged-add-trace_mm_khugepaged_scan-event/20251215-171046 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20251215090419.174418-4-yanglincheng%40kylinos.cn patch subject: [PATCH 3/4] mm: khugepaged: move mm to list tail when MADV_COLD/MADV_FREE config: arc-allnoconfig (https://download.01.org/0day-ci/archive/20251216/202512160400.pTmarqg6-lkp@intel.com/config) compiler: arc-linux-gcc (GCC) 15.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251216/202512160400.pTmarqg6-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/202512160400.pTmarqg6-lkp@intel.com/ All errors (new ones prefixed by >>): mm/madvise.c: In function 'madvise_cold': >> mm/madvise.c:609:9: error: implicit declaration of function 'khugepaged_move_tail'; did you mean 'khugepaged_exit'? [-Wimplicit-function-declaration] 609 | khugepaged_move_tail(vma->vm_mm); | ^~~~~~~~~~~~~~~~~~~~ | khugepaged_exit vim +609 mm/madvise.c 595 596 static long madvise_cold(struct madvise_behavior *madv_behavior) 597 { 598 struct vm_area_struct *vma = madv_behavior->vma; 599 struct mmu_gather tlb; 600 601 if (!can_madv_lru_vma(vma)) 602 return -EINVAL; 603 604 lru_add_drain(); 605 tlb_gather_mmu(&tlb, madv_behavior->mm); 606 madvise_cold_page_range(&tlb, madv_behavior); 607 tlb_finish_mmu(&tlb); 608 > 609 khugepaged_move_tail(vma->vm_mm); 610 611 return 0; 612 } 613 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki