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; and cleaning a call stack of said process by unwinding said call stack and resetting a storage location for a return pointer from said instrumented code space to uninstrumented code space.