Hi Greentime, [FYI, it's a private test report for your RFC patch.] [auto build test ERROR on linus/master] [also build test ERROR on v5.9-rc4] [cannot apply to next-20200910] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Greentime-Hu/riscv-Add-vector-IS... base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 7fe10096c1508c7f033d34d0741809f8eecc1ed4 config: riscv-allmodconfig (attached as .config) compiler: riscv64-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=riscv If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): arch/riscv/kernel/vector.S: Assembler messages: arch/riscv/kernel/vector.S:41: Error: unrecognized opcode `vse8.v v0,(a1)' arch/riscv/kernel/vector.S:43: Error: unrecognized opcode `vse8.v v8,(a1)' arch/riscv/kernel/vector.S:45: Error: unrecognized opcode `vse8.v v16,(a1)' arch/riscv/kernel/vector.S:47: Error: unrecognized opcode `vse8.v v24,(a1)' arch/riscv/kernel/vector.S:62: Error: unrecognized opcode `vsetvli t4,x0,e8,m8' arch/riscv/kernel/vector.S:63: Error: unrecognized opcode `vle8.v v0,(a1)' arch/riscv/kernel/vector.S:65: Error: unrecognized opcode `vle8.v v8,(a1)' arch/riscv/kernel/vector.S:67: Error: unrecognized opcode `vle8.v v16,(a1)' arch/riscv/kernel/vector.S:69: Error: unrecognized opcode `vle8.v v24,(a1)' arch/riscv/kernel/vector.S:75: Error: unrecognized opcode `vsetvl x0,t2,t1' # https://github.com/0day-ci/linux/commit/687d8fe1eaec50d49a9f81c3b188cbf02... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Greentime-Hu/riscv-Add-vector-ISA-support/20200910-163426 git checkout 687d8fe1eaec50d49a9f81c3b188cbf023c56850 vim +40 arch/riscv/kernel/vector.S 31 32 ENTRY(__vstate_save) 33 li status, SR_VS 34 csrs CSR_STATUS, status 35 36 csrr x_vstart, CSR_VSTART 37 csrr x_vtype, CSR_VTYPE 38 csrr x_vl, CSR_VL 39 csrr x_vcsr, CSR_VCSR 41 vse8.v v0, (datap) 42 add datap, datap, incr 43 vse8.v v8, (datap) 44 add datap, datap, incr 45 vse8.v v16, (datap) 46 add datap, datap, incr 47 vse8.v v24, (datap) 48 49 REG_S x_vstart, RISCV_V_STATE_VSTART(vstatep) 50 REG_S x_vtype, RISCV_V_STATE_VTYPE(vstatep) 51 REG_S x_vl, RISCV_V_STATE_VL(vstatep) 52 REG_S x_vcsr, RISCV_V_STATE_VCSR(vstatep) 53 54 csrc CSR_STATUS, status 55 ret 56 ENDPROC(__vstate_save) 57 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org