This weekend we had a 6509 that was moaning about module 2 so we ran diagnostics on that module:
Oct 11 18:05:01 CDT: SP: ******************************************************************
Oct 11 18:05:01 CDT: SP: * WARNING: Please RESET module 2 prior to normal use. Also, packet
Oct 11 18:05:01 CDT: SP: * switching tests will no longer work (i.e. test failure) because
Oct 11 18:05:01 CDT: SP: * its memories are filled with test patterns.
Oct 11 18:05:01 CDT: SP: ******************************************************************
I would feel sorry for the poor switch but my memories are filled with images of that photo shoot that CCIE Journey did for goatse.cx which are far more horrible than test patterns.