From: kernel test robot <lkp@intel.com>
To: Nick Terrell <terrelln@meta.com>
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: ERROR: modpost: "__ld_r13_to_r20_ret" [lib/zstd/zstd_decompress.ko] undefined!
Date: Wed, 07 Jan 2026 10:49:04 +0800 [thread overview]
Message-ID: <202601071032.PQHPKfyf-lkp@intel.com> (raw)
Hi Nick,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: f0b9d8eb98dfee8d00419aa07543bdc2c1a44fb1
commit: 65d1f5507ed2c78c64fce40e44e5574a9419eb09 zstd: Import upstream v1.5.7
date: 10 months ago
config: arc-randconfig-r061-20260107 (https://download.01.org/0day-ci/archive/20260107/202601071032.PQHPKfyf-lkp@intel.com/config)
compiler: arc-linux-gcc (GCC) 10.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260107/202601071032.PQHPKfyf-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/202601071032.PQHPKfyf-lkp@intel.com/
All errors (new ones prefixed by >>, old ones prefixed by <<):
ERROR: modpost: "__ld_r13_to_r23_ret" [lib/zstd/zstd_decompress.ko] undefined!
ERROR: modpost: "__ld_r13_to_r19_ret" [lib/zstd/zstd_decompress.ko] undefined!
ERROR: modpost: "__st_r13_to_r15" [lib/zstd/zstd_decompress.ko] undefined!
ERROR: modpost: "__st_r13_to_r24" [lib/zstd/zstd_decompress.ko] undefined!
ERROR: modpost: "__st_r13_to_r19" [lib/zstd/zstd_decompress.ko] undefined!
ERROR: modpost: "__st_r13_to_r23" [lib/zstd/zstd_decompress.ko] undefined!
ERROR: modpost: "__ld_r13_to_r24_ret" [lib/zstd/zstd_decompress.ko] undefined!
ERROR: modpost: "__ld_r13_to_r18_ret" [lib/zstd/zstd_decompress.ko] undefined!
>> ERROR: modpost: "__ld_r13_to_r20_ret" [lib/zstd/zstd_decompress.ko] undefined!
>> ERROR: modpost: "__ld_r13_to_r15_ret" [lib/zstd/zstd_decompress.ko] undefined!
WARNING: modpost: suppressed 2 unresolved symbol warnings because there were too many)
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2026-01-07 2:49 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-07 2:49 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2023-05-03 8:19 ERROR: modpost: "__ld_r13_to_r20_ret" [lib/zstd/zstd_decompress.ko] undefined! kernel test robot
2022-06-05 17:52 kernel test robot
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