◄Up► ◄Contents► ◄Index► ◄Back► ──────────────────────────────────────────────────────────────────────────── FORTRAN run-time error F6424 invalid argument The system could not begin a thread of execution because an argument to the BEGINTHREAD routine is incorrect. This usually occurs when the stack argument does not start on a word boundary (even address), or the stack size argument is odd or zero, or the stack crosses a segment boundary. -♦-