arch/x86/tools/insn_decoder_test: warning: ffffffff810005de: 0f ff e8 ud0 %eax,%ebp

2018-02-06 Thread kbuild test robot
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   ab2d92ad881da11331280aedf612d82e61cb6d41
commit: 10c91577d5e631773a6394e14cf60125389b71ae x86/tools: Standardize output 
format of insn_decode_test
date:   8 weeks ago
config: x86_64-randconfig-s3-02070914 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
git checkout 10c91577d5e631773a6394e14cf60125389b71ae
# save the attached .config to linux build tree
make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
>> arch/x86/tools/insn_decoder_test: warning: ffff810005de: 0f ff e8
>>         ud0%eax,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 810010d7: 0f ff eb
ud0%ebx,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 81001152: 0f ff bf 09 00 
00 00ud00x9(%rdi),%edi
   arch/x86/tools/insn_decoder_test: warning: objdump says 7 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 81001275: 0f ff eb
ud0%ebx,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 810019b2: 0f ff e8
ud0%eax,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 81001afc: 0f ff e8
ud0%eax,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 81001c23: 0f ff e9
ud0%ecx,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 81002502: 0f ff eb
ud0%ebx,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 8100267e: 0f ff e8
ud0%eax,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 810028a0: 0f ff e8
ud0%eax,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 81002a94: 0f ff e8
ud0%eax,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 81002b17: 0f ff e8
ud0%eax,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 81002e20: 0f ff 83 cd 01 
e8 17ud00x17e801cd(%rbx),%eax
   arch/x86/tools/insn_decoder_test: warning: objdump says 7 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 81002eea: 0f ff e9
ud0%ecx,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction de

arch/x86/tools/insn_decoder_test: warning: ffffffff810005de: 0f ff e8 ud0 %eax,%ebp

2018-02-06 Thread kbuild test robot
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   ab2d92ad881da11331280aedf612d82e61cb6d41
commit: 10c91577d5e631773a6394e14cf60125389b71ae x86/tools: Standardize output 
format of insn_decode_test
date:   8 weeks ago
config: x86_64-randconfig-s3-02070914 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
git checkout 10c91577d5e631773a6394e14cf60125389b71ae
# save the attached .config to linux build tree
make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
>> arch/x86/tools/insn_decoder_test: warning: ffff810005de: 0f ff e8
>>         ud0%eax,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 810010d7: 0f ff eb
ud0%ebx,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 81001152: 0f ff bf 09 00 
00 00ud00x9(%rdi),%edi
   arch/x86/tools/insn_decoder_test: warning: objdump says 7 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 81001275: 0f ff eb
ud0%ebx,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 810019b2: 0f ff e8
ud0%eax,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 81001afc: 0f ff e8
ud0%eax,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 81001c23: 0f ff e9
ud0%ecx,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 81002502: 0f ff eb
ud0%ebx,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 8100267e: 0f ff e8
ud0%eax,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 810028a0: 0f ff e8
ud0%eax,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 81002a94: 0f ff e8
ud0%eax,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 81002b17: 0f ff e8
ud0%eax,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 81002e20: 0f ff 83 cd 01 
e8 17ud00x17e801cd(%rbx),%eax
   arch/x86/tools/insn_decoder_test: warning: objdump says 7 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder 
bug, please report this.
   arch/x86/tools/insn_decoder_test: warning: 81002eea: 0f ff e9
ud0%ecx,%ebp
   arch/x86/tools/insn_decoder_test: warning: objdump says 3 bytes, but 
insn_get_length() says 2
   arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction de