From: kernel test robot <lkp@intel.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: oe-kbuild-all@lists.linux.dev,
David Hildenbrand <david@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Linux Memory Management List <linux-mm@kvack.org>,
Finn Thain <fthain@linux-m68k.org>
Subject: [akpm-mm:mm-nonmm-unstable 71/99] include/linux/instrumented.h:86:(.text.efi_stub_common+0x198): undefined reference to `warn_slowpath_fmt'
Date: Fri, 26 Dec 2025 05:19:07 +0800 [thread overview]
Message-ID: <202512260552.mJWvYIYi-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-nonmm-unstable
head: c40f0b9f72a08d208c7793090ae98faaf6a58719
commit: 472d1f40d1f7db592e9fef39a813c7e8cf95359d [71/99] atomic: add alignment check to instrumented atomic operations
config: arm-randconfig-r072-20251225 (https://download.01.org/0day-ci/archive/20251226/202512260552.mJWvYIYi-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 14.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251226/202512260552.mJWvYIYi-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/202512260552.mJWvYIYi-lkp@intel.com/
All errors (new ones prefixed by >>):
arm-linux-gnueabi-ld: warning: orphan section `.data..once' from `drivers/firmware/efi/libstub/efi-stub.stub.o' being placed in section `.data..once'
arm-linux-gnueabi-ld: error: zImage file size is incorrect
arm-linux-gnueabi-ld: drivers/firmware/efi/libstub/efi-stub.stub.o: in function `instrument_atomic_write':
>> include/linux/instrumented.h:86:(.text.efi_stub_common+0x198): undefined reference to `warn_slowpath_fmt'
arm-linux-gnueabi-ld: arch/arm/boot/compressed/vmlinux: hidden symbol `warn_slowpath_fmt' isn't defined
arm-linux-gnueabi-ld: final link failed: bad value
vim +86 include/linux/instrumented.h
73
74 /**
75 * instrument_atomic_write - instrument atomic write access
76 * @v: address of access
77 * @size: size of access
78 *
79 * Instrument an atomic write access. The instrumentation should be inserted
80 * before the actual write happens.
81 */
82 static __always_inline void instrument_atomic_write(const volatile void *v, size_t size)
83 {
84 kasan_check_write(v, size);
85 kcsan_check_atomic_write(v, size);
> 86 WARN_ON_ONCE(IS_ENABLED(CONFIG_DEBUG_ATOMIC) && ((unsigned long)v & (size - 1)));
87 }
88
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2025-12-25 21:20 UTC|newest]
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