Re: [PATCH v3 1/2] riscv: build kernel atomics from LR/SC when Zaamo is disabled
From: kernel test robot
Date: Fri Oct 30 2026 - 22:16:38 EST
Hi Vladimir,
kernel test robot noticed the following build errors:
[auto build test ERROR on c03c1a14507dfaf8b856c2608f9ac216021fc222]
url: https://github.com/intel-lab-lkp/linux/commits/Vladimir-Kondratiev/riscv-build-kernel-atomics-from-LR-SC-when-Zaamo-is-disabled/20261026-112002
base: c03c1a14507dfaf8b856c2608f9ac216021fc222
patch link: https://lore.kernel.org/r/20261026-lrsc-only-v3-1-ec29c8190fb1%40mobileye.com
patch subject: [PATCH v3 1/2] riscv: build kernel atomics from LR/SC when Zaamo is disabled
config: riscv-randconfig-1000-20261031 (https://download.01.org/0day-ci/archive/20261031/202610311058.zODtC2bF-lkp@xxxxxxxxx/config)
compiler: riscv32-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261031/202610311058.zODtC2bF-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/202610311058.zODtC2bF-lkp@xxxxxxxxx/
All errors (new ones prefixed by >>):
>> cc1: error: -march=rv32imc_zalrsc: unsupported ISA substring '_zalrsc'
make[3]: *** [scripts/Makefile.build:290: scripts/mod/empty.o] Error 1 shuffle=1963593903
>> cc1: error: -march=rv32imc_zalrsc: unsupported ISA substring '_zalrsc'
make[3]: *** [scripts/Makefile.build:185: scripts/mod/devicetable-offsets.s] Error 1 shuffle=1963593903
make[3]: Target 'scripts/mod/' not remade because of errors.
make[2]: *** [Makefile:1424: prepare0] Error 2 shuffle=1963593903
make[2]: Target 'prepare' not remade because of errors.
make[1]: *** [Makefile:248: __sub-make] Error 2 shuffle=1963593903
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:248: __sub-make] Error 2 shuffle=1963593903
make: Target 'prepare' not remade because of errors.
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki