linux-kernel - Re: ERROR: start_text address is c000000000000600, should be c000000000000100

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Date:   Tue, 26 Apr 2022 18:10:58 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     kernel test robot <lkp@...el.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Michael Ellerman <mpe@...erman.id.au>
Subject: Re: ERROR: start_text address is c000000000000600, should be
 c000000000000100

Hi bot,

On 2/15/22 23:03, kernel test robot wrote:
> Hi Randy,
> 
> FYI, the error/warning still remains.
> 
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   c5d9ae265b105d9a67575fb67bd4650a6fc08e25
> commit: 47c258d71ebfc832a760a1dc6540cf3c33968023 powerpc/head_check: use stdout for error messages
> date:   6 months ago
> config: powerpc64-randconfig-c004-20220216 (https://download.01.org/0day-ci/archive/20220216/202202161525.m2QCBrwR-lkp@intel.com/config)
> compiler: powerpc64-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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=47c258d71ebfc832a760a1dc6540cf3c33968023
>         git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>         git fetch --no-tags linus master
>         git checkout 47c258d71ebfc832a760a1dc6540cf3c33968023
>         # save the config file 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
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@...el.com>
> 
> All errors (new ones prefixed by >>):
> 
>>> ERROR: start_text address is c000000000000600, should be c000000000000100
>    ERROR: try to enable LD_HEAD_STUB_CATCH config option
>    ERROR: see comments in arch/powerpc/tools/head_check.sh

The .config file that is provided has
# CONFIG_MODULES is not set

FYI/FTR:

That seems to cause whatever goes before 'start_text' to be too large.
By converting lots of drivers & filesystems to be loadable modules (=m)
[with CONFIG_MODULES=y], this build error can be averted.

-- 
~Randy