1. A computer-implemented method for reverting a process in an in-line instrumented state to an uninstrumented state, said method comprising: modifying selected text segment portions from said process; unmapping instrumented code space such that said instrumented code space is inaccessible to said process; provided an instruction pointer resides in said instrumented code space, updating said instruction pointer to uninstrumented code space; and executing said process and, provided said process generates a fault by seeking to access an address in instrumented code space, providing a corresponding address in said uninstrumented code space.