Question

There are machine codes in linux crash info.
Is there any tool can translate these machine codes to assembly instructions?

code of(ffffffffa0f04ce2):
0xc3 0x89 0xfa 0x66 0xed 0x0f 0xb7 0xc0 0xc3 0x89 0xfa 0xed 0xc3 0xf0 0x48 0x0f 

Answer 1

You could use a disassembler. I found one online. Copy, Edit and paste c3 89 fa 66 ed 0f b7 c0 c3 89 fa ed c3 f0 48 0f, choose processor family (they have plenty to choose from) and you get the result. I tried with i386 and got the following:

c3      ret
89fa    mov %edi,%edx
66ed    in (%dx),%ax
0fb7c0  movzwl %ax,%eax
c3      ret
89fa    mov %edi,%edx
ed      in (%dx),%eax
c3      ret
f048    lock dec %eax