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SubjectRe: Cannot find symbol for section 69: .text.arch_max_swapfile_size.
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@intel.com/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@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/202308120906.Efohswpa-lkp@intel.com/
>
> 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.

$ wget https://download.01.org/0day-ci/archive/20230812/202308120906.Efohswpa-lkp@intel.com/config
$ mv config .config
$ COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ./make.cross W=1 O=build_dir ARCH=mips olddefconfig
[...]
$ COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ./make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash
[...]
FIT description: Linux 6.5.0-rc4-00492-gad3232df3e41
Created: Mon Aug 14 11:35:57 2023
Image 0 (kernel)
Description: Linux 6.5.0-rc4-00492-gad3232df3e41
Created: Mon Aug 14 11:35:57 2023
Type: Kernel Image
Compression: gzip compressed
Data Size: 1767982 Bytes = 1726.54 KiB = 1.69 MiB
Architecture: MIPS
OS: Linux
Load Address: 0x80100000
Entry Point: 0x8043e5f0
Hash algo: sha1
Hash value: 750e28c2fdd0d73eec9b0d8dbf5655579cb1364c
Default Configuration: 'conf-default'
Configuration 0 (conf-default)
Description: Generic Linux kernel
Kernel: kernel
$ file build_dir/mm/swapfile.o
build_dir/mm/swapfile.o: ELF 32-bit MSB relocatable, MIPS, MIPS32 version 1 (SYSV), not stripped

Please let me now if anyone knows what I'm missing.

--
Peter Xu

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