Re: [PATCH v3] mm/slub: free prefilled empty sheaves consistently

[Vlastimil Babka (SUSE)]

On 5/28/26 22:29, kernel test robot wrote:
> Hi,
> 
> kernel test robot noticed the following build errors:
> 
> [auto build test ERROR on akpm-mm/mm-everything]
> 
> url:    https://github.com/intel-lab-lkp/linux/commits/hu-shengming-zte-com-cn/mm-slub-free-prefilled-empty-sheaves-consistently/20260525-211805
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
> patch link:    https://lore.kernel.org/r/20260525211000387LYqTHmxYL900XIB8qwV3h%40zte.com.cn
> patch subject: [PATCH v3] mm/slub: free prefilled empty sheaves consistently
> config: powerpc-randconfig-002-20260529 (https://download.01.org/0day-ci/archive/20260529/202605290406.mjAKJqbo-lkp@xxxxxxxxx/config)
> compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260529/202605290406.mjAKJqbo-lkp@xxxxxxxxx/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@xxxxxxxxx>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202605290406.mjAKJqbo-lkp@xxxxxxxxx/
> 
> All errors (new ones prefixed by >>):
> 
>>> ld.lld: error: relocation R_PPC_ADDR16_HA cannot be used against symbol 'decrementers_next_tb'; recompile with -fPIC
>    >>> defined in vmlinux.a(arch/powerpc/kernel/time.o)
>    >>> referenced by time.c
>    >>>               arch/powerpc/kernel/time.o:(decrementer_set_next_event) in archive vmlinux.a
> --
>>> ld.lld: error: relocation R_PPC_ADDR16_HA cannot be used against symbol 'ppc_emulated'; recompile with -fPIC
>    >>> defined in vmlinux.a(arch/powerpc/kernel/traps.o)
>    >>> referenced by align.c
>    >>>               arch/powerpc/kernel/align.o:(fix_alignment) in archive vmlinux.a

Looks like a false positive, the patch didn't touch any of that.

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