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Message-ID: <202410020326.iaZIteIx-lkp@intel.com>
Date: Wed, 2 Oct 2024 03:53:13 +0800
From: kernel test robot <lkp@...el.com>
To: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>
Subject: mm/slub.c:5000:2: error: call to '__compiletime_assert_641' declared
with 'error' attribute: BUILD_BUG_ON failed: PERCPU_DYNAMIC_EARLY_SIZE <
NR_KMALLOC_TYPES * KMALLOC_SHIFT_HIGH * sizeof(struct kmem_cache_cpu)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: e32cde8d2bd7d251a8f9b434143977ddf13dcec6
commit: d8fccd9ca5f905533dc6c26cfd1f91beb8691c95 arm64: Allow to enable PREEMPT_RT.
date: 2 weeks ago
config: arm64-randconfig-002-20241002 (https://download.01.org/0day-ci/archive/20241002/202410020326.iaZIteIx-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project fef3566a25ff0e34fb87339ba5e13eca17cec00f)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241002/202410020326.iaZIteIx-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/202410020326.iaZIteIx-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from mm/slub.c:13:
In file included from include/linux/mm.h:2237:
include/linux/vmstat.h:517:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
517 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
>> mm/slub.c:5000:2: error: call to '__compiletime_assert_641' declared with 'error' attribute: BUILD_BUG_ON failed: PERCPU_DYNAMIC_EARLY_SIZE < NR_KMALLOC_TYPES * KMALLOC_SHIFT_HIGH * sizeof(struct kmem_cache_cpu)
5000 | BUILD_BUG_ON(PERCPU_DYNAMIC_EARLY_SIZE <
| ^
include/linux/build_bug.h:50:2: note: expanded from macro 'BUILD_BUG_ON'
50 | BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
| ^
include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
| ^
include/linux/compiler_types.h:510:2: note: expanded from macro 'compiletime_assert'
510 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^
include/linux/compiler_types.h:498:2: note: expanded from macro '_compiletime_assert'
498 | __compiletime_assert(condition, msg, prefix, suffix)
| ^
include/linux/compiler_types.h:491:4: note: expanded from macro '__compiletime_assert'
491 | prefix ## suffix(); \
| ^
<scratch space>:99:1: note: expanded from here
99 | __compiletime_assert_641
| ^
1 warning and 1 error generated.
vim +5000 mm/slub.c
81819f0fc8285a Christoph Lameter 2007-05-06 4996
0af8489b0216fa Vlastimil Babka 2022-11-15 4997 #ifndef CONFIG_SLUB_TINY
55136592fedf5c Christoph Lameter 2010-08-20 4998 static inline int alloc_kmem_cache_cpus(struct kmem_cache *s)
4c93c355d5d563 Christoph Lameter 2007-10-16 4999 {
6c182dc0de26ef Christoph Lameter 2010-08-20 @5000 BUILD_BUG_ON(PERCPU_DYNAMIC_EARLY_SIZE <
a0dc161ae77377 Baoquan He 2022-10-24 5001 NR_KMALLOC_TYPES * KMALLOC_SHIFT_HIGH *
a0dc161ae77377 Baoquan He 2022-10-24 5002 sizeof(struct kmem_cache_cpu));
4c93c355d5d563 Christoph Lameter 2007-10-16 5003
8a5ec0ba42c491 Christoph Lameter 2011-02-25 5004 /*
d4d84fef6d0366 Chris Metcalf 2011-06-02 5005 * Must align to double word boundary for the double cmpxchg
d4d84fef6d0366 Chris Metcalf 2011-06-02 5006 * instructions to work; see __pcpu_double_call_return_bool().
8a5ec0ba42c491 Christoph Lameter 2011-02-25 5007 */
d4d84fef6d0366 Chris Metcalf 2011-06-02 5008 s->cpu_slab = __alloc_percpu(sizeof(struct kmem_cache_cpu),
d4d84fef6d0366 Chris Metcalf 2011-06-02 5009 2 * sizeof(void *));
8a5ec0ba42c491 Christoph Lameter 2011-02-25 5010
8a5ec0ba42c491 Christoph Lameter 2011-02-25 5011 if (!s->cpu_slab)
8a5ec0ba42c491 Christoph Lameter 2011-02-25 5012 return 0;
8a5ec0ba42c491 Christoph Lameter 2011-02-25 5013
8a5ec0ba42c491 Christoph Lameter 2011-02-25 5014 init_kmem_cache_cpus(s);
4c93c355d5d563 Christoph Lameter 2007-10-16 5015
8a5ec0ba42c491 Christoph Lameter 2011-02-25 5016 return 1;
4c93c355d5d563 Christoph Lameter 2007-10-16 5017 }
0af8489b0216fa Vlastimil Babka 2022-11-15 5018 #else
0af8489b0216fa Vlastimil Babka 2022-11-15 5019 static inline int alloc_kmem_cache_cpus(struct kmem_cache *s)
0af8489b0216fa Vlastimil Babka 2022-11-15 5020 {
0af8489b0216fa Vlastimil Babka 2022-11-15 5021 return 1;
0af8489b0216fa Vlastimil Babka 2022-11-15 5022 }
0af8489b0216fa Vlastimil Babka 2022-11-15 5023 #endif /* CONFIG_SLUB_TINY */
4c93c355d5d563 Christoph Lameter 2007-10-16 5024
:::::: The code at line 5000 was first introduced by commit
:::::: 6c182dc0de26ef97efb6a97a8deab074833764e7 slub: Remove static kmem_cache_cpu array for boot
:::::: TO: Christoph Lameter <cl@...ux.com>
:::::: CC: Pekka Enberg <penberg@...nel.org>
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