Re: [kbuild-all] Re: undefined reference to `memcg_bulk_charge_hook'

[Chen, Rong A]

On 10/13/2021 5:55 AM, Randy Dunlap wrote:
> On 10/12/21 2:34 PM, kernel test robot wrote:
> > tree:   
> > https://github.com/0day-ci/linux/commits/UPDATE-20211012-182031/Vasily-Averin/memcg-enable-memory-accounting-in-__alloc_pages_bulk/20211008-172703 
> >
> > head:   e10c5e64a0799c75d26d2a82c03f757335616711
> > commit: e10c5e64a0799c75d26d2a82c03f757335616711 memcg: enable memory 
> > accounting in __alloc_pages_bulk
> > date:   11 hours ago
> > config: powerpc64-randconfig-r001-20211012 (attached as .config)
> > compiler: powerpc-linux-gcc (GCC) 11.2.0
> > 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://github.com/0day-ci/linux/commit/e10c5e64a0799c75d26d2a82c03f757335616711 
> >
> >          git remote add linux-review https://github.com/0day-ci/linux
> >          git fetch --no-tags linux-review 
> > UPDATE-20211012-182031/Vasily-Averin/memcg-enable-memory-accounting-in-__alloc_pages_bulk/20211008-172703 
> >
> >          git checkout e10c5e64a0799c75d26d2a82c03f757335616711
> >          # save the attached .config to linux build tree
> >          mkdir build_dir
> >          COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 
> > make.cross O=build_dir ARCH=powerpc SHELL=/bin/bash
>
> Hi ktr/lkp,
>
> Can you explain why the (previously) attached .config file says:
> CONFIG_32BIT=y
>
> but in the email text above, it says:
> config: powerpc64-randconfig-r001-20211012
>
> I would expect a powerpc64 randconfig to say
> CONFIG_64BIT=y
>
> Am I just confused?

Hi Randy,

Sorry for the trouble, the name of randconfig here is wrong,
it didn't set CONFIG_64BIT=y, it should be powerpc-randconfig-r001-xxx


> Also, using (Arnd's) crosstools, the compiler for powerpc64 shows up
> as powerpc64-linux-ld, not as powerpc-linux-ld.
> Is that different for the 0day toolchains?

we'll check CONFIG_64BIT to choose the proper toolchain in reproduce 
script 
"https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross";

Best Regards,
Rong Chen


> (not AFAICT)
>
>
> > If you fix the issue, kindly add following tag as appropriate
> > Reported-by: kernel test robot <lkp@xxxxxxxxx>
> >
> > All errors (new ones prefixed by >>):
> >
> >     powerpc-linux-ld: mm/page_alloc.o: in function `__alloc_pages_bulk':
> > > > (.text+0x857c): undefined reference to `memcg_bulk_charge_hook'
> > > > powerpc-linux-ld: (.text+0x86d0): undefined reference to 
> > > > `memcg_bulk_post_charge_hook'
> >     powerpc-linux-ld: (.text+0x870c): undefined reference to 
> > `memcg_bulk_post_charge_hook'
> > > > powerpc-linux-ld: (.text+0x87c8): undefined reference to 
> > > > `memcg_bulk_pre_charge_hook'
> >
> > ---
>
> thanks.