Building the Linux kernel with Clang and LLVM
 help / color / mirror / Atom feed
From: kernel test robot <lkp@intel.com>
To: Rik van Riel <riel@surriel.com>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev
Subject: Re: [RFC PATCH 3/5] mm/page_alloc: convert any movable pageblock on a non-movable allocation
Date: Sat, 10 Oct 2026 23:49:54 +0800	[thread overview]
Message-ID: <202610102333.1wHL7KPQ-lkp@intel.com> (raw)
In-Reply-To: <20261007021250.1665929-4-riel@surriel.com>

Hi Rik,

[This is a private test report for your RFC patch.]
kernel test robot noticed the following build errors:

[auto build test ERROR on 67f0943b394d920b6c142aad8c6af94340342ae7]

url:    https://github.com/intel-lab-lkp/linux/commits/Rik-van-Riel/mm-page_alloc-count-guard-pages-as-free-again-when-their-buddy-merges/20261006-221246
base:   67f0943b394d920b6c142aad8c6af94340342ae7
patch link:    https://lore.kernel.org/r/20261007021250.1665929-4-riel%40surriel.com
patch subject: [RFC PATCH 3/5] mm/page_alloc: convert any movable pageblock on a non-movable allocation
config: riscv-allyesconfig (https://download.01.org/0day-ci/archive/20261010/202610102333.1wHL7KPQ-lkp@intel.com/config)
compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project 51b433b4f56c531c0d95ba15e1a15e06c399d552)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261010/202610102333.1wHL7KPQ-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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202610102333.1wHL7KPQ-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from arch/riscv/kernel/asm-offsets.c:9:
   In file included from include/linux/mm.h:8:
   In file included from include/linux/gfp.h:7:
>> include/linux/mmzone.h:1237:24: error: use of undeclared identifier 'PMD_SHIFT'
    1237 |         unsigned long start = pageblock_start_pfn(pfn);
         |                               ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:78:52: note: expanded from macro 'pageblock_start_pfn'
      78 | #define pageblock_start_pfn(pfn)        ALIGN_DOWN((pfn), pageblock_nr_pages)
         |                                                           ^~~~~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:75:36: note: expanded from macro 'pageblock_nr_pages'
      75 | #define pageblock_nr_pages      (1UL << pageblock_order)
         |                                         ^~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:60:46: note: expanded from macro 'pageblock_order'
      60 | #define pageblock_order         MIN_T(unsigned int, HUGETLB_PAGE_ORDER, PAGE_BLOCK_MAX_ORDER)
         |                                                     ^~~~~~~~~~~~~~~~~~
   arch/riscv/include/asm/page.h:20:34: note: expanded from macro 'HUGETLB_PAGE_ORDER'
      20 | #define HUGETLB_PAGE_ORDER      (HPAGE_SHIFT - PAGE_SHIFT)
         |                                  ^~~~~~~~~~~
   arch/riscv/include/asm/page.h:17:22: note: expanded from macro 'HPAGE_SHIFT'
      17 | #define HPAGE_SHIFT             PMD_SHIFT
         |                                 ^~~~~~~~~
   In file included from arch/riscv/kernel/asm-offsets.c:9:
   In file included from include/linux/mm.h:8:
   In file included from include/linux/gfp.h:7:
>> include/linux/mmzone.h:1237:24: error: use of undeclared identifier 'PMD_SHIFT'
    1237 |         unsigned long start = pageblock_start_pfn(pfn);
         |                               ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:78:52: note: expanded from macro 'pageblock_start_pfn'
      78 | #define pageblock_start_pfn(pfn)        ALIGN_DOWN((pfn), pageblock_nr_pages)
         |                                                           ^~~~~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:75:36: note: expanded from macro 'pageblock_nr_pages'
      75 | #define pageblock_nr_pages      (1UL << pageblock_order)
         |                                         ^~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:60:46: note: expanded from macro 'pageblock_order'
      60 | #define pageblock_order         MIN_T(unsigned int, HUGETLB_PAGE_ORDER, PAGE_BLOCK_MAX_ORDER)
         |                                                     ^~~~~~~~~~~~~~~~~~
   arch/riscv/include/asm/page.h:20:34: note: expanded from macro 'HUGETLB_PAGE_ORDER'
      20 | #define HUGETLB_PAGE_ORDER      (HPAGE_SHIFT - PAGE_SHIFT)
         |                                  ^~~~~~~~~~~
   arch/riscv/include/asm/page.h:17:22: note: expanded from macro 'HPAGE_SHIFT'
      17 | #define HPAGE_SHIFT             PMD_SHIFT
         |                                 ^~~~~~~~~
   In file included from arch/riscv/kernel/asm-offsets.c:9:
   In file included from include/linux/mm.h:8:
   In file included from include/linux/gfp.h:7:
>> include/linux/mmzone.h:1237:24: error: use of undeclared identifier 'PMD_SHIFT'
    1237 |         unsigned long start = pageblock_start_pfn(pfn);
         |                               ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:78:52: note: expanded from macro 'pageblock_start_pfn'
      78 | #define pageblock_start_pfn(pfn)        ALIGN_DOWN((pfn), pageblock_nr_pages)
         |                                                           ^~~~~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:75:36: note: expanded from macro 'pageblock_nr_pages'
      75 | #define pageblock_nr_pages      (1UL << pageblock_order)
         |                                         ^~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:60:46: note: expanded from macro 'pageblock_order'
      60 | #define pageblock_order         MIN_T(unsigned int, HUGETLB_PAGE_ORDER, PAGE_BLOCK_MAX_ORDER)
         |                                                     ^~~~~~~~~~~~~~~~~~
   arch/riscv/include/asm/page.h:20:34: note: expanded from macro 'HUGETLB_PAGE_ORDER'
      20 | #define HUGETLB_PAGE_ORDER      (HPAGE_SHIFT - PAGE_SHIFT)
         |                                  ^~~~~~~~~~~
   arch/riscv/include/asm/page.h:17:22: note: expanded from macro 'HPAGE_SHIFT'
      17 | #define HPAGE_SHIFT             PMD_SHIFT
         |                                 ^~~~~~~~~
   In file included from arch/riscv/kernel/asm-offsets.c:9:
   In file included from include/linux/mm.h:8:
   In file included from include/linux/gfp.h:7:
>> include/linux/mmzone.h:1237:24: error: use of undeclared identifier 'PMD_SHIFT'
    1237 |         unsigned long start = pageblock_start_pfn(pfn);
         |                               ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:78:52: note: expanded from macro 'pageblock_start_pfn'
      78 | #define pageblock_start_pfn(pfn)        ALIGN_DOWN((pfn), pageblock_nr_pages)
         |                                                           ^~~~~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:75:36: note: expanded from macro 'pageblock_nr_pages'
      75 | #define pageblock_nr_pages      (1UL << pageblock_order)
         |                                         ^~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:60:46: note: expanded from macro 'pageblock_order'
      60 | #define pageblock_order         MIN_T(unsigned int, HUGETLB_PAGE_ORDER, PAGE_BLOCK_MAX_ORDER)
         |                                                     ^~~~~~~~~~~~~~~~~~
   arch/riscv/include/asm/page.h:20:34: note: expanded from macro 'HUGETLB_PAGE_ORDER'
      20 | #define HUGETLB_PAGE_ORDER      (HPAGE_SHIFT - PAGE_SHIFT)
         |                                  ^~~~~~~~~~~
   arch/riscv/include/asm/page.h:17:22: note: expanded from macro 'HPAGE_SHIFT'
      17 | #define HPAGE_SHIFT             PMD_SHIFT
         |                                 ^~~~~~~~~
   In file included from arch/riscv/kernel/asm-offsets.c:9:
   In file included from include/linux/mm.h:8:
   In file included from include/linux/gfp.h:7:
>> include/linux/mmzone.h:1237:24: error: use of undeclared identifier 'PMD_SHIFT'
    1237 |         unsigned long start = pageblock_start_pfn(pfn);
         |                               ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:78:52: note: expanded from macro 'pageblock_start_pfn'
      78 | #define pageblock_start_pfn(pfn)        ALIGN_DOWN((pfn), pageblock_nr_pages)
         |                                                           ^~~~~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:75:36: note: expanded from macro 'pageblock_nr_pages'
      75 | #define pageblock_nr_pages      (1UL << pageblock_order)
         |                                         ^~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:60:46: note: expanded from macro 'pageblock_order'
      60 | #define pageblock_order         MIN_T(unsigned int, HUGETLB_PAGE_ORDER, PAGE_BLOCK_MAX_ORDER)
         |                                                     ^~~~~~~~~~~~~~~~~~
   arch/riscv/include/asm/page.h:20:34: note: expanded from macro 'HUGETLB_PAGE_ORDER'
      20 | #define HUGETLB_PAGE_ORDER      (HPAGE_SHIFT - PAGE_SHIFT)
         |                                  ^~~~~~~~~~~
   arch/riscv/include/asm/page.h:17:22: note: expanded from macro 'HPAGE_SHIFT'
      17 | #define HPAGE_SHIFT             PMD_SHIFT
         |                                 ^~~~~~~~~
   In file included from arch/riscv/kernel/asm-offsets.c:9:
   In file included from include/linux/mm.h:8:
   In file included from include/linux/gfp.h:7:
>> include/linux/mmzone.h:1237:24: error: use of undeclared identifier 'PMD_SHIFT'
    1237 |         unsigned long start = pageblock_start_pfn(pfn);
         |                               ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:78:52: note: expanded from macro 'pageblock_start_pfn'
      78 | #define pageblock_start_pfn(pfn)        ALIGN_DOWN((pfn), pageblock_nr_pages)
         |                                                           ^~~~~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:75:36: note: expanded from macro 'pageblock_nr_pages'
      75 | #define pageblock_nr_pages      (1UL << pageblock_order)
         |                                         ^~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:60:46: note: expanded from macro 'pageblock_order'
      60 | #define pageblock_order         MIN_T(unsigned int, HUGETLB_PAGE_ORDER, PAGE_BLOCK_MAX_ORDER)
         |                                                     ^~~~~~~~~~~~~~~~~~
   arch/riscv/include/asm/page.h:20:34: note: expanded from macro 'HUGETLB_PAGE_ORDER'
      20 | #define HUGETLB_PAGE_ORDER      (HPAGE_SHIFT - PAGE_SHIFT)
         |                                  ^~~~~~~~~~~
   arch/riscv/include/asm/page.h:17:22: note: expanded from macro 'HPAGE_SHIFT'
      17 | #define HPAGE_SHIFT             PMD_SHIFT
         |                                 ^~~~~~~~~
   In file included from arch/riscv/kernel/asm-offsets.c:9:
   In file included from include/linux/mm.h:8:
   In file included from include/linux/gfp.h:7:
   include/linux/mmzone.h:1240:17: error: use of undeclared identifier 'PMD_SHIFT'
    1240 |                start + pageblock_nr_pages <= zone_end_pfn(zone);
         |                        ^~~~~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:75:36: note: expanded from macro 'pageblock_nr_pages'
      75 | #define pageblock_nr_pages      (1UL << pageblock_order)
         |                                         ^~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:60:46: note: expanded from macro 'pageblock_order'
      60 | #define pageblock_order         MIN_T(unsigned int, HUGETLB_PAGE_ORDER, PAGE_BLOCK_MAX_ORDER)
         |                                                     ^~~~~~~~~~~~~~~~~~
   arch/riscv/include/asm/page.h:20:34: note: expanded from macro 'HUGETLB_PAGE_ORDER'
      20 | #define HUGETLB_PAGE_ORDER      (HPAGE_SHIFT - PAGE_SHIFT)
         |                                  ^~~~~~~~~~~
   arch/riscv/include/asm/page.h:17:22: note: expanded from macro 'HPAGE_SHIFT'
      17 | #define HPAGE_SHIFT             PMD_SHIFT
         |                                 ^~~~~~~~~
   In file included from arch/riscv/kernel/asm-offsets.c:9:
   In file included from include/linux/mm.h:8:
   In file included from include/linux/gfp.h:7:
   include/linux/mmzone.h:1240:17: error: use of undeclared identifier 'PMD_SHIFT'
    1240 |                start + pageblock_nr_pages <= zone_end_pfn(zone);
         |                        ^~~~~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:75:36: note: expanded from macro 'pageblock_nr_pages'
      75 | #define pageblock_nr_pages      (1UL << pageblock_order)
         |                                         ^~~~~~~~~~~~~~~
   include/linux/pageblock-flags.h:60:46: note: expanded from macro 'pageblock_order'
      60 | #define pageblock_order         MIN_T(unsigned int, HUGETLB_PAGE_ORDER, PAGE_BLOCK_MAX_ORDER)
         |                                                     ^~~~~~~~~~~~~~~~~~
   arch/riscv/include/asm/page.h:20:34: note: expanded from macro 'HUGETLB_PAGE_ORDER'
      20 | #define HUGETLB_PAGE_ORDER      (HPAGE_SHIFT - PAGE_SHIFT)
         |                                  ^~~~~~~~~~~
   arch/riscv/include/asm/page.h:17:22: note: expanded from macro 'HPAGE_SHIFT'
      17 | #define HPAGE_SHIFT             PMD_SHIFT
         |                                 ^~~~~~~~~
   In file included from arch/riscv/kernel/asm-offsets.c:9:
   In file included from include/linux/mm.h:36:
   In file included from include/linux/rcuwait.h:6:
   In file included from include/linux/sched/signal.h:6:
   include/linux/signal.h:98:11: warning: array index 3 is past the end of the array (that has type 'unsigned long[1]') [-Warray-bounds]
      98 |                 return (set->sig[3] | set->sig[2] |
         |                         ^        ~
   include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here
      62 |         unsigned long sig[_NSIG_WORDS];
         |         ^
   In file included from arch/riscv/kernel/asm-offsets.c:9:
   In file included from include/linux/mm.h:36:
   In file included from include/linux/rcuwait.h:6:
   In file included from include/linux/sched/signal.h:6:
   include/linux/signal.h:98:25: warning: array index 2 is past the end of the array (that has type 'unsigned long[1]') [-Warray-bounds]
      98 |                 return (set->sig[3] | set->sig[2] |
         |                                       ^        ~
   include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here
      62 |         unsigned long sig[_NSIG_WORDS];
         |         ^
   In file included from arch/riscv/kernel/asm-offsets.c:9:
   In file included from include/linux/mm.h:36:
   In file included from include/linux/rcuwait.h:6:
   In file included from include/linux/sched/signal.h:6:
   include/linux/signal.h:99:4: warning: array index 1 is past the end of the array (that has type 'unsigned long[1]') [-Warray-bounds]
      99 |                         set->sig[1] | set->sig[0]) == 0;
         |                         ^        ~
   include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here
      62 |         unsigned long sig[_NSIG_WORDS];
         |         ^
   In file included from arch/riscv/kernel/asm-offsets.c:9:
   In file included from include/linux/mm.h:36:
   In file included from include/linux/rcuwait.h:6:
   In file included from include/linux/sched/signal.h:6:
   include/linux/signal.h:101:11: warning: array index 1 is past the end of the array (that has type 'unsigned long[1]') [-Warray-bounds]
     101 |                 return (set->sig[1] | set->sig[0]) == 0;
         |                         ^        ~
   include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here
      62 |         unsigned long sig[_NSIG_WORDS];
         |         ^
   In file included from arch/riscv/kernel/asm-offsets.c:9:
   In file included from include/linux/mm.h:36:
   In file included from include/linux/rcuwait.h:6:
   In file included from include/linux/sched/signal.h:6:
   include/linux/signal.h:114:11: warning: array index 3 is past the end of the array (that has type 'const unsigned long[1]') [-Warray-bounds]
     114 |                 return  (set1->sig[3] == set2->sig[3]) &&
         |                          ^         ~


vim +/PMD_SHIFT +1237 include/linux/mmzone.h

  1229	
  1230	/*
  1231	 * Whether the pageblock holding @pfn lies wholly inside @zone. Zone
  1232	 * spans are not pageblock-aligned, so the edge pageblocks of a zone
  1233	 * can straddle into the next zone; those never change type.
  1234	 */
  1235	static inline bool zone_spans_pageblock(const struct zone *zone, unsigned long pfn)
  1236	{
> 1237		unsigned long start = pageblock_start_pfn(pfn);
  1238	
  1239		return zone->zone_start_pfn <= start &&
  1240		       start + pageblock_nr_pages <= zone_end_pfn(zone);
  1241	}
  1242	

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

       reply	other threads:[~2026-10-10 15:50 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20261007021250.1665929-4-riel@surriel.com>
2026-10-10 15:49 ` kernel test robot [this message]
2026-10-10 17:14 ` [RFC PATCH 3/5] mm/page_alloc: convert any movable pageblock on a non-movable allocation kernel test robot

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=202610102333.1wHL7KPQ-lkp@intel.com \
    --to=lkp@intel.com \
    --cc=llvm@lists.linux.dev \
    --cc=oe-kbuild-all@lists.linux.dev \
    --cc=riel@surriel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox