Re: [linux-next:master 1000/5337] mm/page_alloc.o:undefined reference to `node_reclaim_distance'

[Steven Price <steven.price@arm.com>]

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On Sun, Dec 22, 2019 at 06:30:44AM +0000, kbuild test robot wrote:
> Hi Steven,
> 
> It's probably a bug fix that unveils the link errors.

I've no idea why this has been bisected to my commit. I repeated the
bisection manually and that fingered:

a55c7454a8c8 ("sched/topology: Improve load balancing on AMD EPYC systems")

which certainly looks like it could be the culprit given it introduces
the node_reclaim_distance variable.

Steve

> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> head:   7ddd09fc4b745fb1d8942f95389583e08412e0cd
> commit: ffbbaa7420f7a7ee6d547cd9adc286fe2e3753e0 [1000/5337] dma_resv: prime lockdep annotations
> config: powerpc-randconfig-a001-20191220 (attached as .config)
> compiler: powerpc64-linux-gcc (GCC) 7.5.0
> reproduce:
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         git checkout ffbbaa7420f7a7ee6d547cd9adc286fe2e3753e0
>         # save the attached .config to linux build tree
>         GCC_VERSION=7.5.0 make.cross ARCH=powerpc 
> 
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot <lkp@intel.com>
> 
> All errors (new ones prefixed by >>):
> 
>    powerpc64-linux-ld: warning: orphan section `.gnu.hash' from `linker stubs' being placed in section `.gnu.hash'.
>    arch/powerpc/perf/perf_regs.o: In function `perf_reg_value':
>    arch/powerpc/perf/perf_regs.c:80: undefined reference to `.is_sier_available'
> >> mm/page_alloc.o:(.toc+0x0): undefined reference to `node_reclaim_distance'
> 
> ---
> 0-DAY kernel test infrastructure                 Open Source Technology Center
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