From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.13]) (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 CB4BA3101A0 for ; Wed, 4 Mar 2026 06:52:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.13 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772607146; cv=none; b=ISLZalvbMop2kS/0g7iCpyfy4aYE8DSrvtIyZeCwil06jI0skqwxsckBdqcQ3ztnzbhkUaQN+Ina1AXmgaC/qL4FSxswxaWI5jSWc9WbFzYNzeX+y/0CIilhOYLZzOFsXC3ALH+4Sk0kTCbQBNxurW4mK9LCdnyOIcBkYZMzcFk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772607146; c=relaxed/simple; bh=gx+JUaZXKkQBCEtPc8D38gsLBTb+F0SNauQ5xuKCAag=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=s3W+zHwJSkIbRnPBqsBoRFrLeMcD6LoACfER77EaqLq9ViMJChIDdKXkt7brOF8B6h+FdNkegtfws1aBew6gOpaKxCrU2YZnn174KlpDtjSU1YXr6hYPBczaXi0++h2uRMhrx89ApuinaEArBrJZILD5ewmse8uesBTrrgO39IM= 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=Sdt0jkuJ; arc=none smtp.client-ip=192.198.163.13 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="Sdt0jkuJ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1772607144; x=1804143144; h=date:from:to:cc:subject:message-id:mime-version; bh=gx+JUaZXKkQBCEtPc8D38gsLBTb+F0SNauQ5xuKCAag=; b=Sdt0jkuJ8Ru99wC6FrIiJIrMpOFmnrHXCbeWasTyhV4d3uE8U01EpggT S2AXxUFHN/LpgLSlKq6kqKFBYrGFSrV+7VHlLTb790iHvsaV+V7hxVJMd 6DBtFeDxWrWkwVRPMmBNWlg5vCWCLpFePv0twgvmA6+Yfdj9sso8xK4+S CSFpA35A01EmJNtwEyHlKfEBKTsscIuL9pPyPbtC1Tq2IRQosOBdQnPiX sMsP2eiogrvmtUljNRRqd+vy/Fkpbekg4KSNQLt0zOWKW7BC+vbohTBXO lld8I+ZBhdADdiex7jKbtyBpK0dnd7r8uRmtjqlRxkYNKqMw69x9lLvmy Q==; X-CSE-ConnectionGUID: 9JaaFCxXQN61xzO/Jc0HgA== X-CSE-MsgGUID: fydfQ4jSQvekJeyqOWfmVg== X-IronPort-AV: E=McAfee;i="6800,10657,11718"; a="76260730" X-IronPort-AV: E=Sophos;i="6.21,323,1763452800"; d="scan'208";a="76260730" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Mar 2026 22:52:23 -0800 X-CSE-ConnectionGUID: KNPfKGaHRnWMqZ85orMeqA== X-CSE-MsgGUID: Ioqb9QVXRUu5MA0mk4mabA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,323,1763452800"; d="scan'208";a="216566616" Received: from lkp-server01.sh.intel.com (HELO f27a57aa7a36) ([10.239.97.150]) by fmviesa008.fm.intel.com with ESMTP; 03 Mar 2026 22:52:21 -0800 Received: from kbuild by f27a57aa7a36 with local (Exim 4.98.2) (envelope-from ) id 1vxg5j-000000003MP-3Dxe; Wed, 04 Mar 2026 06:52:19 +0000 Date: Wed, 4 Mar 2026 14:52:02 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com Subject: Re: [PATCH v3] smaps: Report PMD page size for pure PMD mappings Message-ID: <202603041448.j9gaSbUi-lkp@intel.com> Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline :::::: :::::: Manual check reason: "__compiletime_assert_NNN" :::::: BCC: lkp@intel.com CC: llvm@lists.linux.dev CC: oe-kbuild-all@lists.linux.dev In-Reply-To: <20260303201556.107960-1-ak@linux.intel.com> References: <20260303201556.107960-1-ak@linux.intel.com> TO: Andi Kleen TO: linux-mm@kvack.org CC: akpm@linux-foundation.org CC: Andi Kleen Hi Andi, kernel test robot noticed the following build errors: [auto build test ERROR on brauner-vfs/vfs.all] [also build test ERROR on akpm-mm/mm-everything linus/master v7.0-rc2 next-20260303] [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/Andi-Kleen/smaps-Report-PMD-page-size-for-pure-PMD-mappings/20260304-041922 base: https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git vfs.all patch link: https://lore.kernel.org/r/20260303201556.107960-1-ak%40linux.intel.com patch subject: [PATCH v3] smaps: Report PMD page size for pure PMD mappings :::::: branch date: 10 hours ago :::::: commit date: 10 hours ago config: hexagon-allnoconfig (https://download.01.org/0day-ci/archive/20260304/202603041448.j9gaSbUi-lkp@intel.com/config) compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 9a109fbb6e184ec9bcce10615949f598f4c974a9) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260304/202603041448.j9gaSbUi-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/202603041448.j9gaSbUi-lkp@intel.com/ All errors (new ones prefixed by >>): >> fs/proc/task_mmu.c:1390:8: error: call to '__compiletime_assert_405' declared with 'error' attribute: BUILD_BUG failed 1390 | ps = HPAGE_PMD_SIZE; | ^ include/linux/huge_mm.h:120:34: note: expanded from macro 'HPAGE_PMD_SIZE' 120 | #define HPAGE_PMD_SIZE ((1UL) << HPAGE_PMD_SHIFT) | ^ include/linux/huge_mm.h:113:28: note: expanded from macro 'HPAGE_PMD_SHIFT' 113 | #define HPAGE_PMD_SHIFT ({ BUILD_BUG(); 0; }) | ^ include/linux/build_bug.h:59:21: note: expanded from macro 'BUILD_BUG' 59 | #define BUILD_BUG() BUILD_BUG_ON_MSG(1, "BUILD_BUG failed") | ^ note: (skipping 2 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/compiler_types.h:694:2: note: expanded from macro '_compiletime_assert' 694 | __compiletime_assert(condition, msg, prefix, suffix) | ^ include/linux/compiler_types.h:687:4: note: expanded from macro '__compiletime_assert' 687 | prefix ## suffix(); \ | ^ :79:1: note: expanded from here 79 | __compiletime_assert_405 | ^ 1 error generated. vim +1390 fs/proc/task_mmu.c f1547959d9efd0 Vlastimil Babka 2018-08-21 1369 8e68d689afe328 Vlastimil Babka 2018-08-21 1370 static int show_smap(struct seq_file *m, void *v) 8e68d689afe328 Vlastimil Babka 2018-08-21 1371 { 8e68d689afe328 Vlastimil Babka 2018-08-21 1372 struct vm_area_struct *vma = v; 860a2e7fa4a186 Alexey Dobriyan 2023-09-29 1373 struct mem_size_stats mss = {}; 9378536cc887d4 Andi Kleen 2026-03-03 1374 unsigned ps; 8e68d689afe328 Vlastimil Babka 2018-08-21 1375 03b4b1149308b0 Chinwen Chang 2020-10-13 1376 smap_gather_stats(vma, &mss, 0); 4752c369789250 Matt Mackall 2008-02-04 1377 871305bb202808 Vlastimil Babka 2018-08-21 1378 show_map_vma(m, vma); 4752c369789250 Matt Mackall 2008-02-04 1379 d1be35cb6f9697 Andrei Vagin 2018-04-10 1380 SEQ_PUT_DEC("Size: ", vma->vm_end - vma->vm_start); d1be35cb6f9697 Andrei Vagin 2018-04-10 1381 SEQ_PUT_DEC(" kB\nKernelPageSize: ", vma_kernel_pagesize(vma)); 9378536cc887d4 Andi Kleen 2026-03-03 1382 ps = vma_mmu_pagesize(vma); 9378536cc887d4 Andi Kleen 2026-03-03 1383 /* 9378536cc887d4 Andi Kleen 2026-03-03 1384 * When the mapping is only PMD THP report the correct page size. 9378536cc887d4 Andi Kleen 2026-03-03 1385 * When multiple pages are there the user has to figure it out 9378536cc887d4 Andi Kleen 2026-03-03 1386 * from other fields. 9378536cc887d4 Andi Kleen 2026-03-03 1387 */ 9378536cc887d4 Andi Kleen 2026-03-03 1388 if (mss.shmem_thp + mss.file_thp + mss.anonymous_thp == mss.resident && 9378536cc887d4 Andi Kleen 2026-03-03 1389 mss.resident) 9378536cc887d4 Andi Kleen 2026-03-03 @1390 ps = HPAGE_PMD_SIZE; 9378536cc887d4 Andi Kleen 2026-03-03 1391 SEQ_PUT_DEC(" kB\nMMUPageSize: ", ps); d1be35cb6f9697 Andrei Vagin 2018-04-10 1392 seq_puts(m, " kB\n"); d1be35cb6f9697 Andrei Vagin 2018-04-10 1393 ee2ad71b0756e9 Luigi Semenzato 2019-07-11 1394 __show_smap(m, &mss, false); f1547959d9efd0 Vlastimil Babka 2018-08-21 1395 daa60ae64c6587 Hugh Dickins 2023-08-14 1396 seq_printf(m, "THPeligible: %8u\n", 1f1c061089dcd2 David Hildenbrand 2025-08-15 1397 !!thp_vma_allowable_orders(vma, vma->vm_flags, TVA_SMAPS, 1f1c061089dcd2 David Hildenbrand 2025-08-15 1398 THP_ORDERS_ALL)); 7635d9cbe8327e Michal Hocko 2018-12-28 1399 27cca866e3fce0 Ram Pai 2018-04-13 1400 if (arch_pkeys_enabled()) 27cca866e3fce0 Ram Pai 2018-04-13 1401 seq_printf(m, "ProtectionKey: %8u\n", vma_pkey(vma)); 834f82e2aa9a8e Cyrill Gorcunov 2012-12-17 1402 show_smap_vma_flags(m, vma); 258f669e7e88c1 Vlastimil Babka 2018-08-21 1403 258f669e7e88c1 Vlastimil Babka 2018-08-21 1404 return 0; 258f669e7e88c1 Vlastimil Babka 2018-08-21 1405 } 258f669e7e88c1 Vlastimil Babka 2018-08-21 1406 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki