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X-CSE-ConnectionGUID: aa73PJkVQXSVKsW0hudrvg== X-CSE-MsgGUID: SuLBtwxWQBy9fkXXWSJfcg== X-IronPort-AV: E=McAfee;i="6800,10657,11761"; a="77556058" X-IronPort-AV: E=Sophos;i="6.23,184,1770624000"; d="scan'208";a="77556058" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Apr 2026 03:25:30 -0700 X-CSE-ConnectionGUID: hJIxlttCSkOXi545/F70AA== X-CSE-MsgGUID: 9ig81UChRhCF6ekPr94EJA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,184,1770624000"; d="scan'208";a="230137833" Received: from lkp-server01.sh.intel.com (HELO 7e48d0ff8e22) ([10.239.97.150]) by orviesa010.jf.intel.com with ESMTP; 17 Apr 2026 03:25:29 -0700 Received: from kbuild by 7e48d0ff8e22 with local (Exim 4.98.2) (envelope-from ) id 1wDgO5-000000000EX-2uCs; Fri, 17 Apr 2026 10:25:25 +0000 Date: Fri, 17 Apr 2026 18:24:44 +0800 From: kernel test robot To: Muchun Song Cc: oe-kbuild-all@lists.linux.dev, David Hildenbrand , Andrew Morton , Linux Memory Management List Subject: [akpm-mm:mm-new 163/164] mm/bootmem_info.c:58:15: sparse: sparse: incorrect type in assignment (different address spaces) Message-ID: <202604171841.MGvqbmu8-lkp@intel.com> User-Agent: s-nail v14.9.25 X-Rspamd-Server: rspam10 X-Stat-Signature: dgrmh4ejb73u7jrpbhwcm4ootquaexge X-Rspam-User: X-Rspamd-Queue-Id: E537AC0008 X-HE-Tag: 1776421531-455350 X-HE-Meta: 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 j7fcSLEN XzJYSOBclq2aEj2kfcXYi5HgzEcxn55ynw2xeW8RIVMVYDQbrUz1hNp4/wwXOy/r7tVGEQ4hxO+tD5MQE6lrYIvG8dNnwIe4q4VtUIxQ45+QDXrGkuYNB3QPzr7InVR7vb/LFHp1u2QmLMR69g2XWpYFBkosc80zM9gy+6JVsq0lWW8CV2tBCygazimV18VxV1N1DfSxE6147AxmMW4R7vsJeWnJTytXSB5CTud+LSfFpOQBYh9EOODF3mUzKvon6ZfCu+dvkjU7ucI1MRXXEQvCiyynHRM5SZYjt6v2354E+yKyfARM1RcN6myRs/Rp8V862irXna44ZL/bmwgB8l5ocXpWVtSF6hr+k515TtaMLVcUs1mGeyuoBsmV8zKwnCHJqY3NWl/Aua6jO+f9sKGQAhA== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-new head: ee03ca7d1cb1223d0e14dfd3b48478545af75253 commit: 8568f268a5183e0fd5fbd33569b6513038b62f27 [163/164] mm/sparse: fix race on mem_section->usage in pfn walkers config: x86_64-randconfig-r131-20260417 (https://download.01.org/0day-ci/archive/20260417/202604171841.MGvqbmu8-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260417/202604171841.MGvqbmu8-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/202604171841.MGvqbmu8-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> mm/bootmem_info.c:58:15: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct mem_section_usage *usage @@ got struct mem_section_usage [noderef] __rcu *usage @@ mm/bootmem_info.c:58:15: sparse: expected struct mem_section_usage *usage mm/bootmem_info.c:58:15: sparse: got struct mem_section_usage [noderef] __rcu *usage vim +58 mm/bootmem_info.c 426e5c429d16e4c Muchun Song 2021-06-30 42 cdcfc631c80e716 Muchun Song 2021-09-02 43 static void __init register_page_bootmem_info_section(unsigned long start_pfn) 426e5c429d16e4c Muchun Song 2021-06-30 44 { 426e5c429d16e4c Muchun Song 2021-06-30 45 unsigned long mapsize, section_nr, i; 426e5c429d16e4c Muchun Song 2021-06-30 46 struct mem_section *ms; 426e5c429d16e4c Muchun Song 2021-06-30 47 struct mem_section_usage *usage; 7f8e592bb3271ea David Hildenbrand (Arm 2026-03-20 48) struct page *page; 426e5c429d16e4c Muchun Song 2021-06-30 49 7f8e592bb3271ea David Hildenbrand (Arm 2026-03-20 50) start_pfn = SECTION_ALIGN_DOWN(start_pfn); 426e5c429d16e4c Muchun Song 2021-06-30 51 section_nr = pfn_to_section_nr(start_pfn); 426e5c429d16e4c Muchun Song 2021-06-30 52 ms = __nr_to_section(section_nr); 426e5c429d16e4c Muchun Song 2021-06-30 53 d65917c42373f70 Frank van der Linden 2025-02-28 54 if (!preinited_vmemmap_section(ms)) 7f8e592bb3271ea David Hildenbrand (Arm 2026-03-20 55) register_page_bootmem_memmap(section_nr, pfn_to_page(start_pfn), d65917c42373f70 Frank van der Linden 2025-02-28 56 PAGES_PER_SECTION); 426e5c429d16e4c Muchun Song 2021-06-30 57 426e5c429d16e4c Muchun Song 2021-06-30 @58 usage = ms->usage; 426e5c429d16e4c Muchun Song 2021-06-30 59 page = virt_to_page(usage); 426e5c429d16e4c Muchun Song 2021-06-30 60 426e5c429d16e4c Muchun Song 2021-06-30 61 mapsize = PAGE_ALIGN(mem_section_usage_size()) >> PAGE_SHIFT; 426e5c429d16e4c Muchun Song 2021-06-30 62 426e5c429d16e4c Muchun Song 2021-06-30 63 for (i = 0; i < mapsize; i++, page++) 426e5c429d16e4c Muchun Song 2021-06-30 64 get_page_bootmem(section_nr, page, MIX_SECTION_INFO); 426e5c429d16e4c Muchun Song 2021-06-30 65 } 426e5c429d16e4c Muchun Song 2021-06-30 66 :::::: The code at line 58 was first introduced by commit :::::: 426e5c429d16e4cd5ded46e21ff8e939bf8abd0f mm: memory_hotplug: factor out bootmem core functions to bootmem_info.c :::::: TO: Muchun Song :::::: CC: Linus Torvalds -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki