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X-CSE-ConnectionGUID: 2sBTUXunQdm/z0qgBf0MVA== X-CSE-MsgGUID: dB1cPqCARuehDkYPiKfPMQ== X-IronPort-AV: E=McAfee;i="6800,10657,11696"; a="71812457" X-IronPort-AV: E=Sophos;i="6.21,282,1763452800"; d="scan'208";a="71812457" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Feb 2026 09:12:56 -0800 X-CSE-ConnectionGUID: kodm8n0eQkyUGfi1VPkc5A== X-CSE-MsgGUID: Q2xaUuuRTp+sireEBbIn9g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,282,1763452800"; d="scan'208";a="211699525" Received: from lkp-server01.sh.intel.com (HELO 765f4a05e27f) ([10.239.97.150]) by orviesa007.jf.intel.com with ESMTP; 09 Feb 2026 09:12:49 -0800 Received: from kbuild by 765f4a05e27f with local (Exim 4.98.2) (envelope-from ) id 1vpUoY-00000000o9a-0q0J; Mon, 09 Feb 2026 17:12:46 +0000 Date: Tue, 10 Feb 2026 01:12:17 +0800 From: kernel test robot To: Nhat Pham , linux-mm@kvack.org Cc: oe-kbuild-all@lists.linux.dev, akpm@linux-foundation.org, hannes@cmpxchg.org, hughd@google.com, yosry.ahmed@linux.dev, mhocko@kernel.org, roman.gushchin@linux.dev, shakeel.butt@linux.dev, muchun.song@linux.dev, len.brown@intel.com, chengming.zhou@linux.dev, kasong@tencent.com, chrisl@kernel.org, huang.ying.caritas@gmail.com, ryan.roberts@arm.com, shikemeng@huaweicloud.com, viro@zeniv.linux.org.uk, baohua@kernel.org, bhe@redhat.com, osalvador@suse.de, lorenzo.stoakes@oracle.com, christophe.leroy@csgroup.eu, pavel@kernel.org, kernel-team@meta.com, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, linux-pm@vger.kernel.org, peterx@redhat.com, riel@surriel.com, joshua.hahnjy@gmail.com Subject: Re: [PATCH v3 09/20] mm: swap: allocate a virtual swap slot for each swapped out page Message-ID: <202602100110.Au8uHgc8-lkp@intel.com> References: <20260208215839.87595-10-nphamcs@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260208215839.87595-10-nphamcs@gmail.com> X-Rspam-User: X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 2A2A3100003 X-Stat-Signature: 33jcicpw3adupxw8sa5w43gzbyuaa9pm X-HE-Tag: 1770657176-938492 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 Nhat, kernel test robot noticed the following build warnings: [auto build test WARNING on linus/master] [also build test WARNING on v6.19] [cannot apply to akpm-mm/mm-everything tj-cgroup/for-next tip/smp/core next-20260205] [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/Nhat-Pham/swap-rearrange-the-swap-header-file/20260209-065842 base: linus/master patch link: https://lore.kernel.org/r/20260208215839.87595-10-nphamcs%40gmail.com patch subject: [PATCH v3 09/20] mm: swap: allocate a virtual swap slot for each swapped out page config: s390-randconfig-r134-20260209 (https://download.01.org/0day-ci/archive/20260210/202602100110.Au8uHgc8-lkp@intel.com/config) compiler: s390-linux-gcc (GCC) 14.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260210/202602100110.Au8uHgc8-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/202602100110.Au8uHgc8-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> mm/vswap.c:653:9: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __percpu *__vpp_verify @@ got struct local_lock_t * @@ mm/vswap.c:653:9: sparse: expected void const [noderef] __percpu *__vpp_verify mm/vswap.c:653:9: sparse: got struct local_lock_t * >> mm/vswap.c:653:9: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __percpu *__vpp_verify @@ got struct local_lock_t * @@ mm/vswap.c:653:9: sparse: expected void const [noderef] __percpu *__vpp_verify mm/vswap.c:653:9: sparse: got struct local_lock_t * mm/vswap.c:665:9: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __percpu *__vpp_verify @@ got struct local_lock_t * @@ mm/vswap.c:665:9: sparse: expected void const [noderef] __percpu *__vpp_verify mm/vswap.c:665:9: sparse: got struct local_lock_t * mm/vswap.c:665:9: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __percpu *__vpp_verify @@ got struct local_lock_t * @@ mm/vswap.c:665:9: sparse: expected void const [noderef] __percpu *__vpp_verify mm/vswap.c:665:9: sparse: got struct local_lock_t * mm/vswap.c:182:36: sparse: sparse: context imbalance in 'vswap_iter' - unexpected unlock mm/vswap.c:284:17: sparse: sparse: context imbalance in 'vswap_alloc' - different lock contexts for basic block mm/vswap.c:413:19: sparse: sparse: context imbalance in 'vswap_free' - unexpected unlock mm/vswap.c: note: in included file (through include/linux/rbtree.h, include/linux/mm_types.h, include/linux/mmzone.h, ...): include/linux/rcupdate.h:897:25: sparse: sparse: context imbalance in 'folio_alloc_swap' - unexpected unlock mm/vswap.c:570:9: sparse: sparse: context imbalance in 'swp_entry_to_swp_slot' - unexpected unlock vim +653 mm/vswap.c 643 644 static int vswap_cpu_dead(unsigned int cpu) 645 { 646 struct percpu_vswap_cluster *percpu_cluster; 647 struct vswap_cluster *cluster; 648 int order; 649 650 percpu_cluster = per_cpu_ptr(&percpu_vswap_cluster, cpu); 651 652 rcu_read_lock(); > 653 local_lock(&percpu_cluster->lock); 654 for (order = 0; order < SWAP_NR_ORDERS; order++) { 655 cluster = percpu_cluster->clusters[order]; 656 if (cluster) { 657 percpu_cluster->clusters[order] = NULL; 658 spin_lock(&cluster->lock); 659 cluster->cached = false; 660 if (refcount_dec_and_test(&cluster->refcnt)) 661 vswap_cluster_free(cluster); 662 spin_unlock(&cluster->lock); 663 } 664 } 665 local_unlock(&percpu_cluster->lock); 666 rcu_read_unlock(); 667 668 return 0; 669 } 670 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki