From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D487323EABC for ; Fri, 17 Oct 2025 03:10:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760670612; cv=none; b=F3p1LD4kEMtWnJaXPbgFVFlovV12726nncZgIWVL/u5cYsvsp470eea0oXzmHUkEu6ptGnkogU3KdPtuQEYbsUI05wlmQ6TwDu/VP7oFZUjYI1Lgh45V7KZN09dnS9DLL5d2yIxW8vQdY+M1FIYqxyj9lfkRhIDyQoqkQ6cmpnU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760670612; c=relaxed/simple; bh=/+LxSluv7aDw/AI/2fm6dlIfW0gbQe7klAqez1nbV6E=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=hNISf0Julf8nWv/+SSFfkc7jNauWrJ3DewG3mhAZFRKfGplfcoAg0tuhWiJ4ItG38Oceup6TgRoVa+DqM/FIgwIZU8kI2fMf5Nc2h1dgiVw4nEuQ0YOaP1WbZmOyNd7k4sen02lOUZdad7y11Z7AUHJ98NYCT9pz7KojvyZ6AVI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=BaFQ+l3W; arc=none smtp.client-ip=198.175.65.18 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="BaFQ+l3W" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1760670610; x=1792206610; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=/+LxSluv7aDw/AI/2fm6dlIfW0gbQe7klAqez1nbV6E=; b=BaFQ+l3WmqR4daOPhzrelXH3VLEvEkdjb6QLkweSrO5gTCNcsImGZt16 Cqan/ly/U7ccGNTtveVJkxHsfZUU03aUe5qlvzhjbZiYIAmH0PqeXeRqU OOykE03/uPQSVAGyb3gNPA3VEVg5bvJS+Vldx6/KgbbxPH6W8KdWgipxv AxvhwCGPDNdam6tkJYRYyrbECWC1wMT1NEXEf2On2LDtYojUwTu2tsHbK CM0ePUoj0vFAfRFfJ+A01wB5J6bhajHlaRAPQ73IMZUUa42oLFXACHn6v nENa84VlwzeiwlnPfJUtAxS0wYqG2HvJgOO8YkJt2m54SZKuLRXjnxUUg g==; X-CSE-ConnectionGUID: pF/dasKsSrenPFWuWsJDuA== X-CSE-MsgGUID: 7TBIYWzmSounZ099csJYyA== X-IronPort-AV: E=McAfee;i="6800,10657,11584"; a="62922601" X-IronPort-AV: E=Sophos;i="6.19,234,1754982000"; d="scan'208";a="62922601" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Oct 2025 20:10:08 -0700 X-CSE-ConnectionGUID: Xgxzd1jNR9eqCP7aaJr8zg== X-CSE-MsgGUID: znK5Y+kFS/WADBCN5mannw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,234,1754982000"; d="scan'208";a="213203965" Received: from lkp-server02.sh.intel.com (HELO 66d7546c76b2) ([10.239.97.151]) by orviesa002.jf.intel.com with ESMTP; 16 Oct 2025 20:10:04 -0700 Received: from kbuild by 66d7546c76b2 with local (Exim 4.96) (envelope-from ) id 1v9aqv-0005Tv-2m; Fri, 17 Oct 2025 03:10:01 +0000 Date: Fri, 17 Oct 2025 11:09:27 +0800 From: kernel test robot To: Longlong Xia , linmiaohe@huawei.com, david@redhat.com, lance.yang@linux.dev Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, markus.elfring@web.de, nao.horiguchi@gmail.com, akpm@linux-foundation.org, wangkefeng.wang@huawei.com, qiuxu.zhuo@intel.com, xu.xin16@zte.com.cn, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Longlong Xia Subject: Re: [PATCH v2 1/1] mm/ksm: recover from memory failure on KSM page by migrating to healthy duplicate Message-ID: <202510171017.wBXHozQb-lkp@intel.com> References: <20251016101813.484565-2-xialonglong2025@163.com> Precedence: bulk X-Mailing-List: linux-kernel@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: <20251016101813.484565-2-xialonglong2025@163.com> Hi Longlong, kernel test robot noticed the following build warnings: [auto build test WARNING on akpm-mm/mm-everything] [also build test WARNING on linus/master v6.18-rc1 next-20251016] [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/Longlong-Xia/mm-ksm-recover-from-memory-failure-on-KSM-page-by-migrating-to-healthy-duplicate/20251016-182115 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20251016101813.484565-2-xialonglong2025%40163.com patch subject: [PATCH v2 1/1] mm/ksm: recover from memory failure on KSM page by migrating to healthy duplicate config: x86_64-buildonly-randconfig-003-20251017 (https://download.01.org/0day-ci/archive/20251017/202510171017.wBXHozQb-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/20251017/202510171017.wBXHozQb-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/202510171017.wBXHozQb-lkp@intel.com/ All warnings (new ones prefixed by >>): >> mm/ksm.c:3160:6: warning: variable 'nid' set but not used [-Wunused-but-set-variable] 3160 | int nid; | ^ 1 warning generated. vim +/nid +3160 mm/ksm.c 3155 3156 static struct page *create_new_stable_node_dup(struct ksm_stable_node *chain_head, 3157 struct folio *healthy_folio, 3158 struct ksm_stable_node **new_stable_node) 3159 { > 3160 int nid; 3161 unsigned long kpfn; 3162 struct page *new_page = NULL; 3163 3164 if (!is_stable_node_chain(chain_head)) 3165 return NULL; 3166 3167 new_page = alloc_page(GFP_HIGHUSER_MOVABLE | __GFP_ZERO); 3168 if (!new_page) 3169 return NULL; 3170 3171 copy_highpage(new_page, folio_page(healthy_folio, 0)); 3172 3173 *new_stable_node = alloc_stable_node(); 3174 if (!*new_stable_node) { 3175 __free_page(new_page); 3176 return NULL; 3177 } 3178 3179 INIT_HLIST_HEAD(&(*new_stable_node)->hlist); 3180 kpfn = page_to_pfn(new_page); 3181 (*new_stable_node)->kpfn = kpfn; 3182 nid = get_kpfn_nid(kpfn); 3183 DO_NUMA((*new_stable_node)->nid = nid); 3184 (*new_stable_node)->rmap_hlist_len = 0; 3185 3186 (*new_stable_node)->head = STABLE_NODE_DUP_HEAD; 3187 hlist_add_head(&(*new_stable_node)->hlist_dup, &chain_head->hlist); 3188 ksm_stable_node_dups++; 3189 folio_set_stable_node(page_folio(new_page), *new_stable_node); 3190 folio_add_lru(page_folio(new_page)); 3191 3192 return new_page; 3193 } 3194 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki