On Mon, Aug 14, 2023 at 11:38:18AM -0400, Peter Xu wrote: > On Sat, Aug 12, 2023 at 09:11:33AM +0800, kernel test robot wrote: > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > > head: 190bf7b14b0cf3df19c059061be032bd8994a597 > > commit: be45a4902c7caa717fee6b2f671e59b396ed395c mm/swap: cache maximum swapfile size when init swap > > date: 11 months ago > > config: mips-randconfig-r014-20230811 (https://download.01.org/0day-ci/archive/20230812/202308120906.Efohswpa-lkp@xxxxxxxxx/config) > > compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) > > reproduce: (https://download.01.org/0day-ci/archive/20230812/202308120906.Efohswpa-lkp@xxxxxxxxx/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@xxxxxxxxx> > > | Closes: https://lore.kernel.org/oe-kbuild-all/202308120906.Efohswpa-lkp@xxxxxxxxx/ > > > > All errors (new ones prefixed by >>): > > > > >> Cannot find symbol for section 69: .text.arch_max_swapfile_size. > > mm/swapfile.o: failed > > Hmm.. I don't really know what's the issue here, neither can I reproduce > this locally - the cross build seems to all work with the reproducer and I > can see mm/swapfile.o correctly generated. This is https://github.com/ClangBuiltLinux/linux/issues/1830 and https://github.com/ClangBuiltLinux/linux/issues/981, which is a bug in recordmcount with regards to section symbols that occurs when building with clang's integrated assembler. It happens when the there are only weak symbols in a .text section, which occurs more often with MIPS due to LD_DEAD_CODE_DATA_ELIMINATION implying -ffunction-sections (i.e., any __weak symbol will trigger this) and I can see this randconfig setting it. Unfortunately, the robot seems to have tripped over this a lot over the weekend :/ Intel folks, can this type of warning please be added to your filter for at least MIPS + LD_DEAD_CODE_DATA_ELIMINATION so that people don't get bothered? https://lore.kernel.org/202308121810.APAJIBxn-lkp@xxxxxxxxx/ https://lore.kernel.org/202308121535.otQuZept-lkp@xxxxxxxxx/ https://lore.kernel.org/202308121810.APAJIBxn-lkp@xxxxxxxxx/ https://lore.kernel.org/202308121246.0TYkHC1K-lkp@xxxxxxxxx/ https://lore.kernel.org/202308120553.IRzzfaXL-lkp@xxxxxxxxx/ https://lore.kernel.org/202308111956.QRc8XJVr-lkp@xxxxxxxxx/ Cheers, Nathan
