From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2AE70C56208 for ; Thu, 6 Aug 2026 21:01:59 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 232726B00AB; Thu, 6 Aug 2026 17:01:58 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 1E29A6B00AC; Thu, 6 Aug 2026 17:01:58 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0F90F6B00AD; Thu, 6 Aug 2026 17:01:58 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id DAB646B00AB for ; Thu, 6 Aug 2026 17:01:57 -0400 (EDT) Received: from smtpin08.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay07.hostedemail.com (Postfix) with ESMTP id 61DCE160205 for ; Thu, 6 Aug 2026 21:01:57 +0000 (UTC) X-FDA: 85072066674.08.952EFEA Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.10]) by imf26.hostedemail.com (Postfix) with ESMTP id B71BE14000A for ; Thu, 6 Aug 2026 21:01:54 +0000 (UTC) Authentication-Results: imf26.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=Mf2vSbW4; dmarc=pass (policy=none) header.from=intel.com; spf=pass (imf26.hostedemail.com: domain of lkp@intel.com designates 192.198.163.10 as permitted sender) smtp.mailfrom=lkp@intel.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1786050115; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references:dkim-signature; bh=gmX44P5+RP71AkFBiGVrks8QrqRAPBpUiK6dO9jkLu0=; b=1ZooxmHYJkBlpYggueuS1bRgdB2ADrXkQQdbpB4dhz3uRP5H+DT62rNJNopDL3z9tRjhzV YAxSiMCuG0139QqILvYvDDejKTf82snNYAU1kY5gUyrGkdVEQiRpEHmP7FmEWd6LRdlgu7 OgNRHSkNuF7Dek5DL8uxdVVRn5VAvQY= ARC-Authentication-Results: i=1; imf26.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=Mf2vSbW4; dmarc=pass (policy=none) header.from=intel.com; spf=pass (imf26.hostedemail.com: domain of lkp@intel.com designates 192.198.163.10 as permitted sender) smtp.mailfrom=lkp@intel.com ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1786050115; b=X1Z7Q/BhxMVQNKYKOi4EZ1Q2pNv8AkVgUNnqUs6b/xS5EYfw7tRvabkV77OZdTuFCbgn9y Y83QPBkNukCZTWzNp52BxgI7BNRWCyxbU7VhUjaqNiMJ4wVYk/EwvS7WG1yiYy3X1E8epN M3BBF7+8wzDl1ACQ+zc+WKtA34wXxLE= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1786050115; x=1817586115; h=date:from:to:cc:subject:message-id; bh=yryCtzWs+HndbVGznUBI8u8i9GCMRbr6z55Vw4+4TOk=; b=Mf2vSbW4yv8jeYJZwvlSi4hxqZp6iBejdB+TF6/szjdLLXvl5+Ry2Pv7 TZxZmNWIMl4kVaSbIzSLCuMRRaHcaC5kJdmBp55+fAyByuBBWOuSaTzjO wy+5BhrVuLyGnAhdxjvjxfZ2VjjyZC/uKUg3RUsf1jidmZEpydAo45CKq f+eCnGGd6UvwkhQJaLGKWGGAKXtT2rIm4RBg9B0nEtahK9J3nlg1lre19 Kb8k7NAa07WJbovPBbDwCVMpJbfgr6Q7a5AJVJNyvCimHvzc7EHSGI/ZR GhqVbMPpgoRcAXPzTmuS9te+kFh23ovlfkHM1JJ8jE9KmWhmM3GLjG2O4 Q==; X-CSE-ConnectionGUID: mbOC81FgSeSc4ptWCRC2Uw== X-CSE-MsgGUID: 34BpZQHqQlyaP/lHHp6exg== X-IronPort-AV: E=McAfee;i="6800,10657,11867"; a="98020105" X-IronPort-AV: E=Sophos;i="6.25,209,1779174000"; d="scan'208";a="98020105" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by fmvoesa104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Aug 2026 14:01:53 -0700 X-CSE-ConnectionGUID: /iRqHV/lRF27EIYwLuZWLw== X-CSE-MsgGUID: Dhr5WiOcRnu5bMkqqHxEpA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,209,1779174000"; d="scan'208";a="266055668" Received: from lkp-server01.sh.intel.com (HELO 6eda058d650d) ([10.239.97.150]) by orviesa004.jf.intel.com with ESMTP; 06 Aug 2026 14:01:52 -0700 Received: from kbuild by 6eda058d650d with local (Exim 4.98.2) (envelope-from ) id 1ws5Dp-00000000GEj-3IUa; Thu, 06 Aug 2026 21:01:49 +0000 Date: Fri, 07 Aug 2026 05:01:04 +0800 From: kernel test robot To: Muchun Song Cc: oe-kbuild-all@lists.linux.dev, Andrew Morton , Linux Memory Management List Subject: [linux-next:master 8777/13479] mm/hugetlb.c:3095:39: warning: array subscript 4294967295 is above array bounds of 'struct list_head[1]' Message-ID: <202608070433.x3vNSfjt-lkp@intel.com> User-Agent: s-nail v14.9.25 X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: B71BE14000A X-Stat-Signature: ef79gp8ihg3wixm858qmz64fd7wxp7nb X-Rspam-User: X-HE-Tag: 1786050114-347743 X-HE-Meta: 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 5Q2E5rpD DYh9tQdbUJCUHOKAbLLLdU1xIqJa0u4/PpFZgMO/fLxTZ3WS1xM40Jwkjsp3wrJZdM5Kje01u2XO+VYzyFedHHiyXzu8RrAFgWLkPCP9If0b+ZiSUNQakkO10zJKE9/n5gMkj2g9y7RbVwpKbWjvyGFhU/45hapVzNxY7T8/i6K0ZQvnwAB9mVRTwdidkjRTjFgOdAwD8WOq/VVxnYssgxLHX7xVvw+c61rIOZN3i621kdThaTmBChLrB6ytvWBZ4E2d0S9s12rhRycV3Tux3MmZFGWMOppE/z6jAkNHbNSkJCSvGsefhhfQbxhZIfST92yOb3gkLsNkXt4w= 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/next/linux-next.git master head: ea2bff00da89d7767d677bb68470130ba96f4928 commit: 20549ccf4da49ff6dcb35ffc741f92aa92e07aeb [8777/13479] mm/hugetlb: free cross-zone bootmem gigantic pages after allocation config: parisc-randconfig-002-20260807 (https://download.01.org/0day-ci/archive/20260807/202608070433.x3vNSfjt-lkp@intel.com/config) compiler: hppa-linux-gcc (GCC) 8.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260807/202608070433.x3vNSfjt-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/202608070433.x3vNSfjt-lkp@intel.com/ All warnings (new ones prefixed by >>): mm/hugetlb.c: In function 'alloc_bootmem_huge_page': >> mm/hugetlb.c:3095:39: warning: array subscript 4294967295 is above array bounds of 'struct list_head[1]' [-Warray-bounds] list_add(&m->list, &huge_boot_pages[nid_request]); ~~~~~~~~~~~~~~~^~~~~~~~~~~~~ In file included from mm/hugetlb.c:6: >> include/linux/list.h:163:12: warning: array subscript -1 is below array bounds of 'struct list_head[1]' [-Warray-bounds] new->prev = prev; ~~~~~~~~~~^~~~~~ vim +3095 mm/hugetlb.c 3060 3061 static bool __init alloc_bootmem_huge_page(struct hstate *h, int nid) 3062 { 3063 unsigned long pfn; 3064 unsigned int nid_request = nid; 3065 struct huge_bootmem_page *m = arch_alloc_bootmem_huge_page(h, nid); 3066 3067 if (!m) 3068 return false; 3069 3070 pfn = PHYS_PFN(__pa(m)); 3071 nid = early_pfn_to_nid(pfn); 3072 /* 3073 * Use the beginning of the huge page to store the huge_bootmem_page 3074 * struct (until gather_bootmem puts them into the mem_map). 3075 * 3076 * Put them into a private list first because mem_map is not up yet. 3077 */ 3078 INIT_LIST_HEAD(&m->list); 3079 m->hstate = h; 3080 if (!hugetlb_early_cma(h)) { 3081 m->cma = NULL; 3082 m->flags = 0; 3083 } 3084 3085 /* CMA pages: zone-crossing is validated in hugetlb_cma_reserve(). */ 3086 if (!hugetlb_early_cma(h) && 3087 pfn_range_intersects_zones(nid, pfn, pages_per_huge_page(h))) { 3088 /* 3089 * If the allocated page is on a different node than requested 3090 * (e.g., on PowerPC LPARs), put it on the requested node's list, 3091 * because hugetlb_free_cross_zone_pages() only frees cross-zone 3092 * pages belonging to the requested node. 3093 */ 3094 if (WARN_ON_ONCE(nid_request != NUMA_NO_NODE && nid != nid_request)) > 3095 list_add(&m->list, &huge_boot_pages[nid_request]); 3096 else 3097 list_add(&m->list, &huge_boot_pages[nid]); 3098 } else { 3099 list_add_tail(&m->list, &huge_boot_pages[nid]); 3100 m->flags |= HUGE_BOOTMEM_ZONES_VALID; 3101 /* 3102 * Only initialize the head struct page in memmap_init_reserved_pages, 3103 * rest of the struct pages will be initialized by the HugeTLB 3104 * subsystem itself. 3105 * The head struct page is used to get folio information by the HugeTLB 3106 * subsystem like zone id and node id. 3107 */ 3108 memblock_reserved_mark_noinit(__pa((void *)m + PAGE_SIZE), 3109 huge_page_size(h) - PAGE_SIZE); 3110 } 3111 3112 return true; 3113 } 3114 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki