Hi Maciej, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 64222515138e43da1fcf288f0289ef1020427b87 commit: 6c810cf20feef0d4338e9b424ab7f2644a8b353e crypto: mips/poly1305 - enable for all MIPS processors date: 8 months ago config: mips-randconfig-r016-20211018 (attached as .config) compiler: mips-linux-gcc (GCC) 11.2.0 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 # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 6c810cf20feef0d4338e9b424ab7f2644a8b353e # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=mips SHELL=/bin/bash 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/mips/crypto/poly1305-core.S: Assembler messages: arch/mips/crypto/poly1305-core.S:96: Error: opcode not supported on this processor: mips64r6 (mips64r6) `lwl $9,4+0($5)' arch/mips/crypto/poly1305-core.S:97: Error: opcode not supported on this processor: mips64r6 (mips64r6) `lwl $10,8+0($5)' arch/mips/crypto/poly1305-core.S:98: Error: opcode not supported on this processor: mips64r6 (mips64r6) `lwl $11,12+0($5)' arch/mips/crypto/poly1305-core.S:100: Error: opcode not supported on this processor: mips64r6 (mips64r6) `lwr $9,4+3($5)' arch/mips/crypto/poly1305-core.S:101: Error: opcode not supported on this processor: mips64r6 (mips64r6) `lwr $10,8+3($5)' arch/mips/crypto/poly1305-core.S:102: Error: opcode not supported on this processor: mips64r6 (mips64r6) `lwr $11,12+3($5)' arch/mips/crypto/poly1305-core.S:265: Error: opcode not supported on this processor: mips64r6 (mips64r6) `lwl $8,0+0($5)' arch/mips/crypto/poly1305-core.S:266: Error: opcode not supported on this processor: mips64r6 (mips64r6) `lwl $9,4+0($5)' arch/mips/crypto/poly1305-core.S:267: Error: opcode not supported on this processor: mips64r6 (mips64r6) `lwl $10,8+0($5)' arch/mips/crypto/poly1305-core.S:268: Error: opcode not supported on this processor: mips64r6 (mips64r6) `lwl $11,12+0($5)' arch/mips/crypto/poly1305-core.S:269: Error: opcode not supported on this processor: mips64r6 (mips64r6) `lwr $8,0+3($5)' arch/mips/crypto/poly1305-core.S:270: Error: opcode not supported on this processor: mips64r6 (mips64r6) `lwr $9,4+3($5)' arch/mips/crypto/poly1305-core.S:271: Error: opcode not supported on this processor: mips64r6 (mips64r6) `lwr $10,8+3($5)' arch/mips/crypto/poly1305-core.S:272: Error: opcode not supported on this processor: mips64r6 (mips64r6) `lwr $11,12+3($5)' arch/mips/crypto/poly1305-core.S:402: Error: opcode not supported on this processor: mips64r6 (mips64r6) `multu $23,$9' arch/mips/crypto/poly1305-core.S:403: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mflo $1' arch/mips/crypto/poly1305-core.S:404: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mfhi $2' arch/mips/crypto/poly1305-core.S:410: Error: opcode not supported on this processor: mips64r6 (mips64r6) `multu $22,$10' arch/mips/crypto/poly1305-core.S:411: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mflo $7' arch/mips/crypto/poly1305-core.S:412: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mfhi $24' arch/mips/crypto/poly1305-core.S:415: Error: opcode not supported on this processor: mips64r6 (mips64r6) `multu $21,$11' arch/mips/crypto/poly1305-core.S:419: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mflo $1' arch/mips/crypto/poly1305-core.S:420: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mfhi $2' arch/mips/crypto/poly1305-core.S:423: Error: opcode not supported on this processor: mips64r6 (mips64r6) `multu $18,$8' arch/mips/crypto/poly1305-core.S:428: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mflo $7' arch/mips/crypto/poly1305-core.S:429: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mfhi $14' arch/mips/crypto/poly1305-core.S:432: Error: opcode not supported on this processor: mips64r6 (mips64r6) `multu $17,$9' arch/mips/crypto/poly1305-core.S:436: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mflo $1' arch/mips/crypto/poly1305-core.S:437: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mfhi $2' arch/mips/crypto/poly1305-core.S:440: Error: opcode not supported on this processor: mips64r6 (mips64r6) `multu $23,$10' arch/mips/crypto/poly1305-core.S:443: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mflo $7' arch/mips/crypto/poly1305-core.S:444: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mfhi $24' arch/mips/crypto/poly1305-core.S:447: Error: opcode not supported on this processor: mips64r6 (mips64r6) `multu $22,$11' arch/mips/crypto/poly1305-core.S:451: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mflo $1' arch/mips/crypto/poly1305-core.S:452: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mfhi $2' arch/mips/crypto/poly1305-core.S:455: Error: opcode not supported on this processor: mips64r6 (mips64r6) `multu $21,$16' arch/mips/crypto/poly1305-core.S:459: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mflo $7' arch/mips/crypto/poly1305-core.S:462: Error: opcode not supported on this processor: mips64r6 (mips64r6) `multu $19,$8' arch/mips/crypto/poly1305-core.S:467: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mflo $1' arch/mips/crypto/poly1305-core.S:468: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mfhi $15' arch/mips/crypto/poly1305-core.S:471: Error: opcode not supported on this processor: mips64r6 (mips64r6) `multu $18,$9' arch/mips/crypto/poly1305-core.S:474: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mflo $7' arch/mips/crypto/poly1305-core.S:475: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mfhi $24' arch/mips/crypto/poly1305-core.S:478: Error: opcode not supported on this processor: mips64r6 (mips64r6) `multu $17,$10' arch/mips/crypto/poly1305-core.S:481: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mflo $1' arch/mips/crypto/poly1305-core.S:482: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mfhi $2' arch/mips/crypto/poly1305-core.S:485: Error: opcode not supported on this processor: mips64r6 (mips64r6) `multu $23,$11' arch/mips/crypto/poly1305-core.S:489: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mflo $7' arch/mips/crypto/poly1305-core.S:490: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mfhi $24' arch/mips/crypto/poly1305-core.S:493: Error: opcode not supported on this processor: mips64r6 (mips64r6) `multu $22,$16' arch/mips/crypto/poly1305-core.S:497: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mflo $1' arch/mips/crypto/poly1305-core.S:500: Error: opcode not supported on this processor: mips64r6 (mips64r6) `multu $20,$8' arch/mips/crypto/poly1305-core.S:505: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mflo $7' arch/mips/crypto/poly1305-core.S:506: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mfhi $24' arch/mips/crypto/poly1305-core.S:509: Error: opcode not supported on this processor: mips64r6 (mips64r6) `multu $19,$9' arch/mips/crypto/poly1305-core.S:512: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mflo $1' arch/mips/crypto/poly1305-core.S:513: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mfhi $2' arch/mips/crypto/poly1305-core.S:516: Error: opcode not supported on this processor: mips64r6 (mips64r6) `multu $17,$11' arch/mips/crypto/poly1305-core.S:519: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mflo $7' arch/mips/crypto/poly1305-core.S:520: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mfhi $11' arch/mips/crypto/poly1305-core.S:523: Error: opcode not supported on this processor: mips64r6 (mips64r6) `multu $18,$10' arch/mips/crypto/poly1305-core.S:527: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mflo $1' arch/mips/crypto/poly1305-core.S:528: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mfhi $2' arch/mips/crypto/poly1305-core.S:531: Error: opcode not supported on this processor: mips64r6 (mips64r6) `multu $23,$16' arch/mips/crypto/poly1305-core.S:535: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mflo $7' arch/mips/crypto/poly1305-core.S:538: Error: opcode not supported on this processor: mips64r6 (mips64r6) `multu $17,$16' arch/mips/crypto/poly1305-core.S:543: Error: opcode not supported on this processor: mips64r6 (mips64r6) `mflo $16' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org