| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <202509252109.X3oqS16b-lkp@intel.com>
Date: Thu, 25 Sep 2025 21:15:18 +0800
From: kernel test robot <lkp@...el.com>
To: Brendan Jackman <jackmanb@...gle.com>,
Andy Lutomirski <luto@...nel.org>,
Lorenzo Stoakes <lorenzo.stoakes@...cle.com>,
"Liam R. Howlett" <Liam.Howlett@...cle.com>,
Suren Baghdasaryan <surenb@...gle.com>,
Michal Hocko <mhocko@...e.com>,
Johannes Weiner <hannes@...xchg.org>, Zi Yan <ziy@...dia.com>,
Axel Rasmussen <axelrasmussen@...gle.com>,
Yuanchu Xie <yuanchu@...gle.com>,
Roman Gushchin <roman.gushchin@...ux.dev>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
peterz@...radead.org, bp@...en8.de, dave.hansen@...ux.intel.com,
mingo@...hat.com, tglx@...utronix.de, akpm@...ux-foundation.org,
david@...hat.com, derkling@...gle.com, junaids@...gle.com,
linux-kernel@...r.kernel.org, linux-mm@...ck.org, reijiw@...gle.com,
rientjes@...gle.com, rppt@...nel.org, vbabka@...e.cz,
x86@...nel.org, yosry.ahmed@...ux.dev
Subject: Re: [PATCH 11/21] mm: introduce freetype_t
Hi Brendan,
kernel test robot noticed the following build errors:
[auto build test ERROR on bf2602a3cb2381fb1a04bf1c39a290518d2538d1]
url: https://github.com/intel-lab-lkp/linux/commits/Brendan-Jackman/x86-mm-asi-Add-CONFIG_MITIGATION_ADDRESS_SPACE_ISOLATION/20250924-230633
base: bf2602a3cb2381fb1a04bf1c39a290518d2538d1
patch link: https://lore.kernel.org/r/20250924-b4-asi-page-alloc-v1-11-2d861768041f%40google.com
patch subject: [PATCH 11/21] mm: introduce freetype_t
config: i386-buildonly-randconfig-001-20250925 (https://download.01.org/0day-ci/archive/20250925/202509252109.X3oqS16b-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250925/202509252109.X3oqS16b-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202509252109.X3oqS16b-lkp@intel.com/
All errors (new ones prefixed by >>):
>> mm/compaction.c:2319:7: error: use of undeclared identifier 'migratetype'; did you mean 'migrate_pfn'?
2319 | if (migratetype == MIGRATE_MOVABLE &&
| ^~~~~~~~~~~
| migrate_pfn
include/linux/migrate.h:137:29: note: 'migrate_pfn' declared here
137 | static inline unsigned long migrate_pfn(unsigned long pfn)
| ^
1 error generated.
vim +2319 mm/compaction.c
facdaa917c4d5a3 Nitin Gupta 2020-08-11 2234
40cacbcb3240362 Mel Gorman 2019-03-05 2235 static enum compact_result __compact_finished(struct compact_control *cc)
748446bb6b5a939 Mel Gorman 2010-05-24 2236 {
8fb74b9fb2b182d Mel Gorman 2013-01-11 2237 unsigned int order;
fb432f7fe43d9fb Brendan Jackman 2025-09-24 2238 const freetype_t freetype = cc->freetype;
cb2dcaf023c2cf1 Mel Gorman 2019-03-05 2239 int ret;
748446bb6b5a939 Mel Gorman 2010-05-24 2240
753341a4b85ff33 Mel Gorman 2012-10-08 2241 /* Compaction run completes if the migrate and free scanner meet */
f2849aa09d4fbc4 Vlastimil Babka 2015-09-08 2242 if (compact_scanners_met(cc)) {
55b7c4c99f6a448 Vlastimil Babka 2014-01-21 2243 /* Let the next compaction start anew. */
40cacbcb3240362 Mel Gorman 2019-03-05 2244 reset_cached_positions(cc->zone);
55b7c4c99f6a448 Vlastimil Babka 2014-01-21 2245
62997027ca5b3d4 Mel Gorman 2012-10-08 2246 /*
62997027ca5b3d4 Mel Gorman 2012-10-08 2247 * Mark that the PG_migrate_skip information should be cleared
accf62422b3a67f Vlastimil Babka 2016-03-17 2248 * by kswapd when it goes to sleep. kcompactd does not set the
62997027ca5b3d4 Mel Gorman 2012-10-08 2249 * flag itself as the decision to be clear should be directly
62997027ca5b3d4 Mel Gorman 2012-10-08 2250 * based on an allocation request.
62997027ca5b3d4 Mel Gorman 2012-10-08 2251 */
accf62422b3a67f Vlastimil Babka 2016-03-17 2252 if (cc->direct_compaction)
40cacbcb3240362 Mel Gorman 2019-03-05 2253 cc->zone->compact_blockskip_flush = true;
62997027ca5b3d4 Mel Gorman 2012-10-08 2254
c8f7de0bfae36e8 Michal Hocko 2016-05-20 2255 if (cc->whole_zone)
748446bb6b5a939 Mel Gorman 2010-05-24 2256 return COMPACT_COMPLETE;
c8f7de0bfae36e8 Michal Hocko 2016-05-20 2257 else
c8f7de0bfae36e8 Michal Hocko 2016-05-20 2258 return COMPACT_PARTIAL_SKIPPED;
bb13ffeb9f6bfeb Mel Gorman 2012-10-08 2259 }
748446bb6b5a939 Mel Gorman 2010-05-24 2260
facdaa917c4d5a3 Nitin Gupta 2020-08-11 2261 if (cc->proactive_compaction) {
facdaa917c4d5a3 Nitin Gupta 2020-08-11 2262 int score, wmark_low;
facdaa917c4d5a3 Nitin Gupta 2020-08-11 2263 pg_data_t *pgdat;
facdaa917c4d5a3 Nitin Gupta 2020-08-11 2264
facdaa917c4d5a3 Nitin Gupta 2020-08-11 2265 pgdat = cc->zone->zone_pgdat;
facdaa917c4d5a3 Nitin Gupta 2020-08-11 2266 if (kswapd_is_running(pgdat))
facdaa917c4d5a3 Nitin Gupta 2020-08-11 2267 return COMPACT_PARTIAL_SKIPPED;
facdaa917c4d5a3 Nitin Gupta 2020-08-11 2268
facdaa917c4d5a3 Nitin Gupta 2020-08-11 2269 score = fragmentation_score_zone(cc->zone);
8fbb92bd10be26d Kemeng Shi 2023-08-09 2270 wmark_low = fragmentation_score_wmark(true);
facdaa917c4d5a3 Nitin Gupta 2020-08-11 2271
facdaa917c4d5a3 Nitin Gupta 2020-08-11 2272 if (score > wmark_low)
facdaa917c4d5a3 Nitin Gupta 2020-08-11 2273 ret = COMPACT_CONTINUE;
facdaa917c4d5a3 Nitin Gupta 2020-08-11 2274 else
facdaa917c4d5a3 Nitin Gupta 2020-08-11 2275 ret = COMPACT_SUCCESS;
facdaa917c4d5a3 Nitin Gupta 2020-08-11 2276
facdaa917c4d5a3 Nitin Gupta 2020-08-11 2277 goto out;
facdaa917c4d5a3 Nitin Gupta 2020-08-11 2278 }
facdaa917c4d5a3 Nitin Gupta 2020-08-11 2279
21c527a3cba07f9 Yaowei Bai 2015-11-05 2280 if (is_via_compact_memory(cc->order))
56de7263fcf3eb1 Mel Gorman 2010-05-24 2281 return COMPACT_CONTINUE;
56de7263fcf3eb1 Mel Gorman 2010-05-24 2282
baf6a9a1db5a40e Vlastimil Babka 2017-05-08 2283 /*
efe771c7603bc52 Mel Gorman 2019-03-05 2284 * Always finish scanning a pageblock to reduce the possibility of
efe771c7603bc52 Mel Gorman 2019-03-05 2285 * fallbacks in the future. This is particularly important when
efe771c7603bc52 Mel Gorman 2019-03-05 2286 * migration source is unmovable/reclaimable but it's not worth
efe771c7603bc52 Mel Gorman 2019-03-05 2287 * special casing.
baf6a9a1db5a40e Vlastimil Babka 2017-05-08 2288 */
ee0913c47196102 Kefeng Wang 2022-09-07 2289 if (!pageblock_aligned(cc->migrate_pfn))
baf6a9a1db5a40e Vlastimil Babka 2017-05-08 2290 return COMPACT_CONTINUE;
baf6a9a1db5a40e Vlastimil Babka 2017-05-08 2291
a211c6550efcc87 Johannes Weiner 2025-03-13 2292 /*
a211c6550efcc87 Johannes Weiner 2025-03-13 2293 * When defrag_mode is enabled, make kcompactd target
a211c6550efcc87 Johannes Weiner 2025-03-13 2294 * watermarks in whole pageblocks. Because they can be stolen
a211c6550efcc87 Johannes Weiner 2025-03-13 2295 * without polluting, no further fallback checks are needed.
a211c6550efcc87 Johannes Weiner 2025-03-13 2296 */
a211c6550efcc87 Johannes Weiner 2025-03-13 2297 if (defrag_mode && !cc->direct_compaction) {
a211c6550efcc87 Johannes Weiner 2025-03-13 2298 if (__zone_watermark_ok(cc->zone, cc->order,
a211c6550efcc87 Johannes Weiner 2025-03-13 2299 high_wmark_pages(cc->zone),
a211c6550efcc87 Johannes Weiner 2025-03-13 2300 cc->highest_zoneidx, cc->alloc_flags,
a211c6550efcc87 Johannes Weiner 2025-03-13 2301 zone_page_state(cc->zone,
a211c6550efcc87 Johannes Weiner 2025-03-13 2302 NR_FREE_PAGES_BLOCKS)))
a211c6550efcc87 Johannes Weiner 2025-03-13 2303 return COMPACT_SUCCESS;
a211c6550efcc87 Johannes Weiner 2025-03-13 2304
a211c6550efcc87 Johannes Weiner 2025-03-13 2305 return COMPACT_CONTINUE;
a211c6550efcc87 Johannes Weiner 2025-03-13 2306 }
a211c6550efcc87 Johannes Weiner 2025-03-13 2307
56de7263fcf3eb1 Mel Gorman 2010-05-24 2308 /* Direct compactor: Is a suitable page free? */
cb2dcaf023c2cf1 Mel Gorman 2019-03-05 2309 ret = COMPACT_NO_SUITABLE_PAGE;
fd37721803c6e73 Kirill A. Shutemov 2023-12-28 2310 for (order = cc->order; order < NR_PAGE_ORDERS; order++) {
40cacbcb3240362 Mel Gorman 2019-03-05 2311 struct free_area *area = &cc->zone->free_area[order];
8fb74b9fb2b182d Mel Gorman 2013-01-11 2312
fb432f7fe43d9fb Brendan Jackman 2025-09-24 2313 /* Job done if page is free of the right freetype */
fb432f7fe43d9fb Brendan Jackman 2025-09-24 2314 if (!free_area_empty(area, freetype))
cf378319d335663 Vlastimil Babka 2016-10-07 2315 return COMPACT_SUCCESS;
56de7263fcf3eb1 Mel Gorman 2010-05-24 2316
2149cdaef6c0eb5 Joonsoo Kim 2015-04-14 2317 #ifdef CONFIG_CMA
2149cdaef6c0eb5 Joonsoo Kim 2015-04-14 2318 /* MIGRATE_MOVABLE can fallback on MIGRATE_CMA */
2149cdaef6c0eb5 Joonsoo Kim 2015-04-14 @2319 if (migratetype == MIGRATE_MOVABLE &&
fb432f7fe43d9fb Brendan Jackman 2025-09-24 2320 !free_areas_empty(area, MIGRATE_CMA))
cf378319d335663 Vlastimil Babka 2016-10-07 2321 return COMPACT_SUCCESS;
2149cdaef6c0eb5 Joonsoo Kim 2015-04-14 2322 #endif
2149cdaef6c0eb5 Joonsoo Kim 2015-04-14 2323 /*
2149cdaef6c0eb5 Joonsoo Kim 2015-04-14 2324 * Job done if allocation would steal freepages from
fb432f7fe43d9fb Brendan Jackman 2025-09-24 2325 * other freetype buddy lists.
2149cdaef6c0eb5 Joonsoo Kim 2015-04-14 2326 */
fb432f7fe43d9fb Brendan Jackman 2025-09-24 2327 if (find_suitable_fallback(area, order, freetype, true) >= 0)
baf6a9a1db5a40e Vlastimil Babka 2017-05-08 2328 /*
fb432f7fe43d9fb Brendan Jackman 2025-09-24 2329 * Movable pages are OK in any pageblock of the right
fb432f7fe43d9fb Brendan Jackman 2025-09-24 2330 * sensitivity. If we are * stealing for a
fb432f7fe43d9fb Brendan Jackman 2025-09-24 2331 * non-movable allocation, make sure
fa599c44987df43 Miaohe Lin 2022-04-28 2332 * we finish compacting the current pageblock first
fa599c44987df43 Miaohe Lin 2022-04-28 2333 * (which is assured by the above migrate_pfn align
fa599c44987df43 Miaohe Lin 2022-04-28 2334 * check) so it is as free as possible and we won't
fa599c44987df43 Miaohe Lin 2022-04-28 2335 * have to steal another one soon.
baf6a9a1db5a40e Vlastimil Babka 2017-05-08 2336 */
baf6a9a1db5a40e Vlastimil Babka 2017-05-08 2337 return COMPACT_SUCCESS;
baf6a9a1db5a40e Vlastimil Babka 2017-05-08 2338 }
baf6a9a1db5a40e Vlastimil Babka 2017-05-08 2339
facdaa917c4d5a3 Nitin Gupta 2020-08-11 2340 out:
cb2dcaf023c2cf1 Mel Gorman 2019-03-05 2341 if (cc->contended || fatal_signal_pending(current))
cb2dcaf023c2cf1 Mel Gorman 2019-03-05 2342 ret = COMPACT_CONTENDED;
cb2dcaf023c2cf1 Mel Gorman 2019-03-05 2343
cb2dcaf023c2cf1 Mel Gorman 2019-03-05 2344 return ret;
837d026d560c5ef Joonsoo Kim 2015-02-11 2345 }
837d026d560c5ef Joonsoo Kim 2015-02-11 2346
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
Powered by blists - more mailing lists