Re: [kbuild-all] Re: make[2]: *** [arch/powerpc/Makefile.postlink:31: vmlinux] Error 1

[Chen, Rong A]

On 8/6/2021 3:25 AM, Randy Dunlap wrote:
> On 8/5/21 3:28 AM, Chen, Rong A wrote:
> > On 8/4/2021 11:10 AM, Randy Dunlap wrote:
> > > 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@xxxxxxxxx>
> > > >
> > > > 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
> >
> > Hi Randy,
> >
> > Thanks for the advice, the "ERROR:" lines weren't redirected to 
> > stderr, so the bot didn't notice them, it looks difficult to change 
> > the output.
>
> Hi Rong,
>
> So 0day bot only checks stderr for errors?

yes, as far as it goes.

Best Regards,
Rong Chen

> That is almost reasonable (IMO).
>
> Michael, in the file arch/powerpc/tools/head_check.sh,
> what do you think about redirecting all of the ERROR: lines
> to stdout (echo "..." >&2)?
>
>
> > Best Regards,
> > Rong Chen
> >
> > > and yes, enabling LD_HEAD_STUB_CATCH does fix this build error.
>
>
>
> > > thanks.