Re: [linux-next:master 3442/4242] WARNING: modpost: vmlinux: section mismatch in reference: (unknown)+0x1270 (section: __ex_table) -> .LASF0 (section: .debug_str)

[Yujie Liu <yujie.liu@intel.com>]

On Mon, Apr 08, 2024 at 12:32:11PM -0400, Peter Xu wrote:
> On Mon, Apr 08, 2024 at 12:53:19PM +0800, kernel test robot wrote:
> > tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> > head:   8568bb2ccc278f344e6ac44af6ed010a90aa88dc
> > commit: e79da3a55e4e7b60b2790b3402a1a6c19829e9ce [3442/4242] mm/gup: merge pXd huge mapping checks
> > config: riscv-buildonly-randconfig-r001-20230517 (https://download.01.org/0day-ci/archive/20240408/202404081248.FE1RbA1V-lkp@intel.com/config)
> > compiler: riscv32-linux-gcc (GCC) 13.2.0
> > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240408/202404081248.FE1RbA1V-lkp@intel.com/reproduce)
> > 
> > If you fix the issue in a separate patch/commit (i.e. not just a new version of
> > the same patch/commit), kindly add following tags
> > | Reported-by: kernel test robot <lkp@intel.com>
> > | Closes: https://lore.kernel.org/oe-kbuild-all/202404081248.FE1RbA1V-lkp@intel.com/
> 
> [...]
> 
> > ERROR: modpost: __ex_table+0x1258 references non-executable section '.rodata.str1.4'
> > WARNING: modpost: vmlinux: section mismatch in reference: (unknown)+0x1260 (section: __ex_table) -> .LASF3592 (section: .debug_str)
> > ERROR: modpost: __ex_table+0x1260 references non-executable section '.debug_str'
> > WARNING: modpost: vmlinux: section mismatch in reference: (unknown)+0x1264 (section: __ex_table) -> .LC59 (section: .rodata.str1.4)
> > ERROR: modpost: __ex_table+0x1264 references non-executable section '.rodata.str1.4'
> > WARNING: modpost: vmlinux: section mismatch in reference: (unknown)+0x126c (section: __ex_table) -> .Ldebug_ranges0 (section: .debug_ranges)
> > ERROR: modpost: __ex_table+0x126c references non-executable section '.debug_ranges'
> > >> WARNING: modpost: vmlinux: section mismatch in reference: (unknown)+0x1270 (section: __ex_table) -> .LASF0 (section: .debug_str)
> > ERROR: modpost: __ex_table+0x1270 references non-executable section '.debug_str'
> > >> WARNING: modpost: vmlinux: section mismatch in reference: (unknown)+0x1278 (section: __ex_table) -> .LASF2 (section: .debug_str)
> > ERROR: modpost: __ex_table+0x1278 references non-executable section '.debug_str'
> > WARNING: modpost: vmlinux: section mismatch in reference: (unknown)+0x127c (section: __ex_table) -> .LASF0 (section: .debug_str)
> > ERROR: modpost: __ex_table+0x127c references non-executable section '.debug_str'
> > WARNING: modpost: vmlinux: section mismatch in reference: (unknown)+0x1284 (section: __ex_table) -> .LASF6 (section: .debug_str)
> > ERROR: modpost: __ex_table+0x1284 references non-executable section '.debug_str'
> > WARNING: modpost: vmlinux: section mismatch in reference: (unknown)+0x1288 (section: __ex_table) -> .LASF7 (section: .debug_str)
> 
> [...]
> 
> Hmm, this doesn't look like relevant to the small commit e79da3a55e4e7b..
> I'd guess this is an irrelevant error with the randconfig which lacks some
> sheer luck.  I'll ignore this one as of now, but anyone can correct me
> otherwise..

Sorry for the false report. The bot wrongly parsed the modpost warnings
and triggered wrong bisections. We will fix this bug as soon as possible.

Thanks,
Yujie