Notes on CPU clock oscillator tolerance with SunOS 4.1.1 and 4.1.3A bug in SunOS 4.1.1 results in the kernel time losing 1 microsecondper tick of the system clock. The bug was fixed (bugid 1094383) forSunOS 4.1.1 and corrected in SunOS 4.1.3. The easiest way to fix thisis to replace the 4.1.1 binary clock.o with the corresponding 4.1.3binary. Without this change it is necessary to use the tickadj programincluded in this distribution with the -t 9999 option.The tickadj option will work in all cases except when the kernel hasbeen modified to correct the CPU clock oscillator frequency using a1-pps signal from a precision source. The bugfix must be installed forthis wrinkle to work properly.Dave Mills (mills@udel.edu)