Hi, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-3.14.y head: 836a24d6291c76c802d0968be9efb050dbf955e6 commit: 017ff97daa4a7892181a4dd315c657108419da0c [1941/4787] kernel: add support for gcc 5 config: mips-jz4740 (attached as .config) compiler: mipsel-linux-gnu-gcc (Debian 5.3.1-8) 5.3.1 20160205 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 017ff97daa4a7892181a4dd315c657108419da0c # save the attached .config to linux build tree make.cross ARCH=mips All errors (new ones prefixed by >>): arch/mips/kernel/r4k_fpu.S: Assembler messages: >> arch/mips/kernel/r4k_fpu.S:68: Error: opcode not supported on this processor: mips3 (mips3) `sdc1 $f0,272+0($4)' arch/mips/kernel/r4k_fpu.S:69: Error: opcode not supported on this processor: mips3 (mips3) `sdc1 $f2,272+16($4)' arch/mips/kernel/r4k_fpu.S:70: Error: opcode not supported on this processor: mips3 (mips3) `sdc1 $f4,272+32($4)' arch/mips/kernel/r4k_fpu.S:71: Error: opcode not supported on this processor: mips3 (mips3) `sdc1 $f6,272+48($4)' arch/mips/kernel/r4k_fpu.S:72: Error: opcode not supported on this processor: mips3 (mips3) `sdc1 $f8,272+64($4)' arch/mips/kernel/r4k_fpu.S:73: Error: opcode not supported on this processor: mips3 (mips3) `sdc1 $f10,272+80($4)' arch/mips/kernel/r4k_fpu.S:74: Error: opcode not supported on this processor: mips3 (mips3) `sdc1 $f12,272+96($4)' arch/mips/kernel/r4k_fpu.S:75: Error: opcode not supported on this processor: mips3 (mips3) `sdc1 $f14,272+112($4)' arch/mips/kernel/r4k_fpu.S:76: Error: opcode not supported on this processor: mips3 (mips3) `sdc1 $f16,272+128($4)' arch/mips/kernel/r4k_fpu.S:77: Error: opcode not supported on this processor: mips3 (mips3) `sdc1 $f18,272+144($4)' arch/mips/kernel/r4k_fpu.S:78: Error: opcode not supported on this processor: mips3 (mips3) `sdc1 $f20,272+160($4)' arch/mips/kernel/r4k_fpu.S:79: Error: opcode not supported on this processor: mips3 (mips3) `sdc1 $f22,272+176($4)' arch/mips/kernel/r4k_fpu.S:80: Error: opcode not supported on this processor: mips3 (mips3) `sdc1 $f24,272+192($4)' arch/mips/kernel/r4k_fpu.S:81: Error: opcode not supported on this processor: mips3 (mips3) `sdc1 $f26,272+208($4)' arch/mips/kernel/r4k_fpu.S:82: Error: opcode not supported on this processor: mips3 (mips3) `sdc1 $f28,272+224($4)' arch/mips/kernel/r4k_fpu.S:83: Error: opcode not supported on this processor: mips3 (mips3) `sdc1 $f30,272+240($4)' >> arch/mips/kernel/r4k_fpu.S:178: Error: opcode not supported on this processor: mips3 (mips3) `ldc1 $f0,272+0($4)' arch/mips/kernel/r4k_fpu.S:179: Error: opcode not supported on this processor: mips3 (mips3) `ldc1 $f2,272+16($4)' arch/mips/kernel/r4k_fpu.S:180: Error: opcode not supported on this processor: mips3 (mips3) `ldc1 $f4,272+32($4)' arch/mips/kernel/r4k_fpu.S:181: Error: opcode not supported on this processor: mips3 (mips3) `ldc1 $f6,272+48($4)' arch/mips/kernel/r4k_fpu.S:182: Error: opcode not supported on this processor: mips3 (mips3) `ldc1 $f8,272+64($4)' arch/mips/kernel/r4k_fpu.S:183: Error: opcode not supported on this processor: mips3 (mips3) `ldc1 $f10,272+80($4)' arch/mips/kernel/r4k_fpu.S:184: Error: opcode not supported on this processor: mips3 (mips3) `ldc1 $f12,272+96($4)' arch/mips/kernel/r4k_fpu.S:185: Error: opcode not supported on this processor: mips3 (mips3) `ldc1 $f14,272+112($4)' arch/mips/kernel/r4k_fpu.S:186: Error: opcode not supported on this processor: mips3 (mips3) `ldc1 $f16,272+128($4)' arch/mips/kernel/r4k_fpu.S:187: Error: opcode not supported on this processor: mips3 (mips3) `ldc1 $f18,272+144($4)' arch/mips/kernel/r4k_fpu.S:188: Error: opcode not supported on this processor: mips3 (mips3) `ldc1 $f20,272+160($4)' arch/mips/kernel/r4k_fpu.S:189: Error: opcode not supported on this processor: mips3 (mips3) `ldc1 $f22,272+176($4)' arch/mips/kernel/r4k_fpu.S:190: Error: opcode not supported on this processor: mips3 (mips3) `ldc1 $f24,272+192($4)' arch/mips/kernel/r4k_fpu.S:191: Error: opcode not supported on this processor: mips3 (mips3) `ldc1 $f26,272+208($4)' arch/mips/kernel/r4k_fpu.S:192: Error: opcode not supported on this processor: mips3 (mips3) `ldc1 $f28,272+224($4)' arch/mips/kernel/r4k_fpu.S:193: Error: opcode not supported on this processor: mips3 (mips3) `ldc1 $f30,272+240($4)' vim +68 arch/mips/kernel/r4k_fpu.S ^1da177e Linus Torvalds 2005-04-16 62 EX sdc1 $f29, SC_FPREGS+232(a0) ^1da177e Linus Torvalds 2005-04-16 63 EX sdc1 $f31, SC_FPREGS+248(a0) 597ce172 Paul Burton 2013-11-22 64 1: .set pop ^1da177e Linus Torvalds 2005-04-16 65 #endif ^1da177e Linus Torvalds 2005-04-16 66 ^1da177e Linus Torvalds 2005-04-16 67 /* Store the 16 even double precision registers */ ^1da177e Linus Torvalds 2005-04-16 @68 EX sdc1 $f0, SC_FPREGS+0(a0) ^1da177e Linus Torvalds 2005-04-16 69 EX sdc1 $f2, SC_FPREGS+16(a0) ^1da177e Linus Torvalds 2005-04-16 70 EX sdc1 $f4, SC_FPREGS+32(a0) ^1da177e Linus Torvalds 2005-04-16 71 EX sdc1 $f6, SC_FPREGS+48(a0) ^1da177e Linus Torvalds 2005-04-16 72 EX sdc1 $f8, SC_FPREGS+64(a0) ^1da177e Linus Torvalds 2005-04-16 73 EX sdc1 $f10, SC_FPREGS+80(a0) ^1da177e Linus Torvalds 2005-04-16 74 EX sdc1 $f12, SC_FPREGS+96(a0) ^1da177e Linus Torvalds 2005-04-16 @75 EX sdc1 $f14, SC_FPREGS+112(a0) ^1da177e Linus Torvalds 2005-04-16 76 EX sdc1 $f16, SC_FPREGS+128(a0) ^1da177e Linus Torvalds 2005-04-16 77 EX sdc1 $f18, SC_FPREGS+144(a0) ^1da177e Linus Torvalds 2005-04-16 78 EX sdc1 $f20, SC_FPREGS+160(a0) ^1da177e Linus Torvalds 2005-04-16 79 EX sdc1 $f22, SC_FPREGS+176(a0) ^1da177e Linus Torvalds 2005-04-16 80 EX sdc1 $f24, SC_FPREGS+192(a0) ^1da177e Linus Torvalds 2005-04-16 81 EX sdc1 $f26, SC_FPREGS+208(a0) ^1da177e Linus Torvalds 2005-04-16 82 EX sdc1 $f28, SC_FPREGS+224(a0) ^1da177e Linus Torvalds 2005-04-16 83 EX sdc1 $f30, SC_FPREGS+240(a0) ^1da177e Linus Torvalds 2005-04-16 84 EX sw t1, SC_FPC_CSR(a0) ^1da177e Linus Torvalds 2005-04-16 85 jr ra ^1da177e Linus Torvalds 2005-04-16 86 li v0, 0 # success ^1da177e Linus Torvalds 2005-04-16 87 END(_save_fp_context) ^1da177e Linus Torvalds 2005-04-16 88 ^1da177e Linus Torvalds 2005-04-16 89 #ifdef CONFIG_MIPS32_COMPAT ^1da177e Linus Torvalds 2005-04-16 90 /* Save 32-bit process floating point context */ ^1da177e Linus Torvalds 2005-04-16 91 LEAF(_save_fp_context32) ^1da177e Linus Torvalds 2005-04-16 92 cfc1 t1, fcr31 ^1da177e Linus Torvalds 2005-04-16 93 597ce172 Paul Burton 2013-11-22 94 mfc0 t0, CP0_STATUS 597ce172 Paul Burton 2013-11-22 95 sll t0, t0, 5 597ce172 Paul Burton 2013-11-22 96 bgez t0, 1f # skip storing odd if FR=0 597ce172 Paul Burton 2013-11-22 97 nop 597ce172 Paul Burton 2013-11-22 98 597ce172 Paul Burton 2013-11-22 99 /* Store the 16 odd double precision registers */ 597ce172 Paul Burton 2013-11-22 100 EX sdc1 $f1, SC32_FPREGS+8(a0) 597ce172 Paul Burton 2013-11-22 101 EX sdc1 $f3, SC32_FPREGS+24(a0) 597ce172 Paul Burton 2013-11-22 102 EX sdc1 $f5, SC32_FPREGS+40(a0) 597ce172 Paul Burton 2013-11-22 103 EX sdc1 $f7, SC32_FPREGS+56(a0) 597ce172 Paul Burton 2013-11-22 104 EX sdc1 $f9, SC32_FPREGS+72(a0) 597ce172 Paul Burton 2013-11-22 105 EX sdc1 $f11, SC32_FPREGS+88(a0) 597ce172 Paul Burton 2013-11-22 106 EX sdc1 $f13, SC32_FPREGS+104(a0) 597ce172 Paul Burton 2013-11-22 107 EX sdc1 $f15, SC32_FPREGS+120(a0) 597ce172 Paul Burton 2013-11-22 108 EX sdc1 $f17, SC32_FPREGS+136(a0) 597ce172 Paul Burton 2013-11-22 109 EX sdc1 $f19, SC32_FPREGS+152(a0) 597ce172 Paul Burton 2013-11-22 110 EX sdc1 $f21, SC32_FPREGS+168(a0) 597ce172 Paul Burton 2013-11-22 111 EX sdc1 $f23, SC32_FPREGS+184(a0) 597ce172 Paul Burton 2013-11-22 112 EX sdc1 $f25, SC32_FPREGS+200(a0) 597ce172 Paul Burton 2013-11-22 113 EX sdc1 $f27, SC32_FPREGS+216(a0) 597ce172 Paul Burton 2013-11-22 114 EX sdc1 $f29, SC32_FPREGS+232(a0) 597ce172 Paul Burton 2013-11-22 115 EX sdc1 $f31, SC32_FPREGS+248(a0) 597ce172 Paul Burton 2013-11-22 116 597ce172 Paul Burton 2013-11-22 117 /* Store the 16 even double precision registers */ 597ce172 Paul Burton 2013-11-22 118 1: EX sdc1 $f0, SC32_FPREGS+0(a0) ^1da177e Linus Torvalds 2005-04-16 119 EX sdc1 $f2, SC32_FPREGS+16(a0) ^1da177e Linus Torvalds 2005-04-16 120 EX sdc1 $f4, SC32_FPREGS+32(a0) ^1da177e Linus Torvalds 2005-04-16 121 EX sdc1 $f6, SC32_FPREGS+48(a0) ^1da177e Linus Torvalds 2005-04-16 122 EX sdc1 $f8, SC32_FPREGS+64(a0) ^1da177e Linus Torvalds 2005-04-16 123 EX sdc1 $f10, SC32_FPREGS+80(a0) ^1da177e Linus Torvalds 2005-04-16 124 EX sdc1 $f12, SC32_FPREGS+96(a0) ^1da177e Linus Torvalds 2005-04-16 125 EX sdc1 $f14, SC32_FPREGS+112(a0) ^1da177e Linus Torvalds 2005-04-16 126 EX sdc1 $f16, SC32_FPREGS+128(a0) ^1da177e Linus Torvalds 2005-04-16 127 EX sdc1 $f18, SC32_FPREGS+144(a0) ^1da177e Linus Torvalds 2005-04-16 128 EX sdc1 $f20, SC32_FPREGS+160(a0) ^1da177e Linus Torvalds 2005-04-16 129 EX sdc1 $f22, SC32_FPREGS+176(a0) ^1da177e Linus Torvalds 2005-04-16 130 EX sdc1 $f24, SC32_FPREGS+192(a0) ^1da177e Linus Torvalds 2005-04-16 131 EX sdc1 $f26, SC32_FPREGS+208(a0) ^1da177e Linus Torvalds 2005-04-16 132 EX sdc1 $f28, SC32_FPREGS+224(a0) ^1da177e Linus Torvalds 2005-04-16 133 EX sdc1 $f30, SC32_FPREGS+240(a0) ^1da177e Linus Torvalds 2005-04-16 134 EX sw t1, SC32_FPC_CSR(a0) ^1da177e Linus Torvalds 2005-04-16 135 cfc1 t0, $0 # implementation/version ^1da177e Linus Torvalds 2005-04-16 136 EX sw t0, SC32_FPC_EIR(a0) ^1da177e Linus Torvalds 2005-04-16 137 ^1da177e Linus Torvalds 2005-04-16 138 jr ra ^1da177e Linus Torvalds 2005-04-16 139 li v0, 0 # success ^1da177e Linus Torvalds 2005-04-16 140 END(_save_fp_context32) ^1da177e Linus Torvalds 2005-04-16 141 #endif ^1da177e Linus Torvalds 2005-04-16 142 ^1da177e Linus Torvalds 2005-04-16 143 /* ^1da177e Linus Torvalds 2005-04-16 144 * Restore FPU state: ^1da177e Linus Torvalds 2005-04-16 145 * - fp gp registers ^1da177e Linus Torvalds 2005-04-16 146 * - cp1 status/control register ^1da177e Linus Torvalds 2005-04-16 147 */ ^1da177e Linus Torvalds 2005-04-16 148 LEAF(_restore_fp_context) b616365e Huacai Chen 2014-02-07 149 EX lw t1, SC_FPC_CSR(a0) 597ce172 Paul Burton 2013-11-22 150 f5868f05 Paul Bolle 2014-02-09 151 #if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2) 597ce172 Paul Burton 2013-11-22 152 .set push f5868f05 Paul Bolle 2014-02-09 153 #ifdef CONFIG_CPU_MIPS32_R2 597ce172 Paul Burton 2013-11-22 154 .set mips64r2 597ce172 Paul Burton 2013-11-22 155 mfc0 t0, CP0_STATUS 597ce172 Paul Burton 2013-11-22 156 sll t0, t0, 5 597ce172 Paul Burton 2013-11-22 157 bgez t0, 1f # skip loading odd if FR=0 597ce172 Paul Burton 2013-11-22 158 nop 597ce172 Paul Burton 2013-11-22 159 #endif ^1da177e Linus Torvalds 2005-04-16 160 EX ldc1 $f1, SC_FPREGS+8(a0) ^1da177e Linus Torvalds 2005-04-16 161 EX ldc1 $f3, SC_FPREGS+24(a0) ^1da177e Linus Torvalds 2005-04-16 162 EX ldc1 $f5, SC_FPREGS+40(a0) ^1da177e Linus Torvalds 2005-04-16 163 EX ldc1 $f7, SC_FPREGS+56(a0) ^1da177e Linus Torvalds 2005-04-16 164 EX ldc1 $f9, SC_FPREGS+72(a0) ^1da177e Linus Torvalds 2005-04-16 165 EX ldc1 $f11, SC_FPREGS+88(a0) ^1da177e Linus Torvalds 2005-04-16 166 EX ldc1 $f13, SC_FPREGS+104(a0) ^1da177e Linus Torvalds 2005-04-16 167 EX ldc1 $f15, SC_FPREGS+120(a0) ^1da177e Linus Torvalds 2005-04-16 168 EX ldc1 $f17, SC_FPREGS+136(a0) ^1da177e Linus Torvalds 2005-04-16 169 EX ldc1 $f19, SC_FPREGS+152(a0) ^1da177e Linus Torvalds 2005-04-16 170 EX ldc1 $f21, SC_FPREGS+168(a0) ^1da177e Linus Torvalds 2005-04-16 171 EX ldc1 $f23, SC_FPREGS+184(a0) ^1da177e Linus Torvalds 2005-04-16 172 EX ldc1 $f25, SC_FPREGS+200(a0) ^1da177e Linus Torvalds 2005-04-16 173 EX ldc1 $f27, SC_FPREGS+216(a0) ^1da177e Linus Torvalds 2005-04-16 174 EX ldc1 $f29, SC_FPREGS+232(a0) ^1da177e Linus Torvalds 2005-04-16 175 EX ldc1 $f31, SC_FPREGS+248(a0) 597ce172 Paul Burton 2013-11-22 176 1: .set pop ^1da177e Linus Torvalds 2005-04-16 177 #endif ^1da177e Linus Torvalds 2005-04-16 @178 EX ldc1 $f0, SC_FPREGS+0(a0) ^1da177e Linus Torvalds 2005-04-16 179 EX ldc1 $f2, SC_FPREGS+16(a0) ^1da177e Linus Torvalds 2005-04-16 180 EX ldc1 $f4, SC_FPREGS+32(a0) ^1da177e Linus Torvalds 2005-04-16 181 EX ldc1 $f6, SC_FPREGS+48(a0) :::::: The code at line 68 was first introduced by commit :::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2 :::::: TO: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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