[19657] in Athena Bugs
sun4 9.0.14: ntpd
daemon@ATHENA.MIT.EDU (Nickolai Zeldovich)
Sat Aug 18 17:49:03 2001
Message-Id: <200108182149.RAA21964@pepsi-one.mit.edu>
To: bugs@MIT.EDU
Date: Sat, 18 Aug 2001 17:49:01 -0400
From: Nickolai Zeldovich <kolya@MIT.EDU>
System name: pepsi-one.mit.edu
Type and version: Ultra-1 9.0.14 (with mkserv)
Display type: cgsix
Shell: /bin/athena/tcsh
Window manager: ctwm -s
What's wrong:
ntpd periodically (once every 1-2 hours) loses sync and
steps time. This is different from the bug with the Sun
Blade machines stepping time every 16 minutes. Observed
both on this machine and xcb (an Ultra 10).
Experimentally, the bug is fixed in ntp 4.1.0 -- my machine
has been running without losing sync for about 20 hours
now, and xcb for about 6 hours. Additionally, on xcb the
drift value in /var/athena/ntp.drift went from -499 to 23,
which seems much more sane.
Unfortunately 4.1.0 doesn't fix the Sun Blade bug.
What should have happened:
Time should've been continuously adjusted without losing
sync and stepping.
