Any tracing mechanism can track the executed instructions of a user process in the kernel?

[Dongliang Mu]

Hi all,

I am writing to kindly ask one question: is there any tracing
mechanism in Linux kernel that can trace all the executed instructions
of a user process? If this user process is run on different
processors, traces of this process on different processors should be
also recorded.

Any comment is welcome.

--
My best regards to you.

     No System Is Safe!
     Dongliang Mu