What scripture or Talmudic discourse states that peace must reign on earth before messiah comes?

In a few places it is taught that peace will reign on earth AFTER the coming of mashiach. There is a discussion on this in the Talmud in Masechta Sanhedrin- but it is clear from there, and from the other areas of the tanach, that peace is a RESULT of the mashiach- not a precursor to him.