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ntp 4.2.6p5

    1: Notes on CPU clock oscillator tolerance with SunOS 4.1.1 and 4.1.3
    2: 
    3: A bug in SunOS 4.1.1 results in the kernel time losing 1 microsecond
    4: per tick of the system clock. The bug was fixed (bugid 1094383) for
    5: SunOS 4.1.1 and corrected in SunOS 4.1.3. The easiest way to fix this
    6: is to replace the 4.1.1 binary clock.o with the corresponding 4.1.3
    7: binary. Without this change it is necessary to use the tickadj program
    8: included in this distribution with the -t 9999 option.
    9: 
   10: The tickadj option will work in all cases except when the kernel has
   11: been modified to correct the CPU clock oscillator frequency using a
   12: 1-pps signal from a precision source. The bugfix must be installed for
   13: this wrinkle to work properly.
   14: 
   15: Dave Mills (mills@udel.edu)