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From: Valdis.Kletnieks@VTTCF.CC.VT.EDU (Valdis Kletnieks)
Newsgroups: comp.protocols.time.ntp
Subject: Holy Cow! NTP works on AIX/370 (finally)...
Message-ID: <9106110833.AA02446@trantor.umd.edu>
Date: 11 Jun 91 04:33:22 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
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All you chronon counters with blue skins take note:

AIX/370 1.2.1 - at the '0300' level (PTF U401375), IBM released 
APAR IX18142 which makes the 'adjtime()' syscall behave itself 
reasonably well.

Our AIX/370 machine (a 3090-300) is currently running at stratum 3, and
tracking our strat-2 boxen with about 2-3 ms offsets, and dispersions
close to zero.  The behavior of "slam the clock backwards several hours"
is gone...  The latest value in /etc/ntp.drift is -0.0098724403,
which seems to indicate a reasonably stable clock...

I think this is one of the longest-running problems I've ever had
with a vendor.  I  reported this problem to IBM back on Sept 15, 1989....

				Valdis Kletnieks
				Computer Systems Engineer
				Virginia Tech