On 7/30/21 1:29 AM, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   764a5bc89b12b82c18ce7ca5d7c1b10dd748a440
> commit: cf536e185869d4815d506e777bcca6edd9966a6e Makefile: extend 32B aligned debug option to 64B aligned
> date:   10 weeks ago
> config: powerpc64-randconfig-c023-20210730 (attached as .config)
> compiler: powerpc-linux-gcc (GCC) 10.3.0
> reproduce (this is a W=1 build):
>          wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>          chmod +x ~/bin/make.cross
>          # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cf536e185869d4815d506e777bcca6edd9966a6e
>          git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>          git fetch --no-tags linus master
>          git checkout cf536e185869d4815d506e777bcca6edd9966a6e
>          # save the attached .config to linux build tree
>          COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=powerpc64
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
> 
> All errors (new ones prefixed by >>):
> 
>>> make[2]: *** [arch/powerpc/Makefile.postlink:31: vmlinux] Error 1
> 
> ---

Hi ktr/lkp,

This is not "All errors". I suggest that you improve your output by
(also) grepping for "ERROR:", so that the following lines would be
included here:

ERROR: start_text address is c000000000000200, should be c000000000000100
ERROR: try to enable LD_HEAD_STUB_CATCH config option
ERROR: see comments in arch/powerpc/tools/head_check.sh


and yes, enabling LD_HEAD_STUB_CATCH does fix this build error.

thanks.
-- 
~Randy