Выдержка из minicom man-а

Очень понравилось про то, к чему могут привести высокие скорости:

    Sending serial data to timesharing minicomputers at sustained high
    speeds has been known to cause lockups, system halts, kernel panics,
    and occasional antisocial behaviour.  When experimenting with high
    speed input to a system, consider rebooting the system if the file
    transfers are not successful, especially if the personality of the
    system appears altered.