From ktk@ktk.bidmc.harvard.edu Wed May 21 16:26:28 1997
Date: Wed, 21 May 1997 11:21:42 -0400
From: "Kristofer T. Karas" <ktk@ktk.bidmc.harvard.edu>
To: dhd@exnet.com

...

Darn, I should have looked last time I sent mail, but there was a
patch submitted for 3-5.90 which is reported to fix the loopfilter bug
that lets 3-5.90 lock onto sources an integer multiple of seconds off
of real time.  I'm including that patch below (wish I could remember
the author, Ulrich Windl maybe, submitted to comp.protocols.time.ntp)
in case you'd like to try it with your xntpd; I've been using it here
on three machines, seems to work just fine (no syncs to bogus sources
yet).

...

Best regards,
Kris
========================================================================
*** xntpd/ntp_loopfilter.c~	Sat Apr  5 08:34:15 1997
--- xntpd/ntp_loopfilter.c	Wed Apr 16 22:12:27 1997
***************
*** 238,243 ****
  	 * cutout switch.
  	 */
! 	} else if ((ftmp.l_ui > CLOCK_MAX_I || (ftmp.l_ui == CLOCK_MAX_I
! 	    && ftmp.l_uf >= CLOCK_MAX_F)) && !cutout) {
  		tc_counter = 0;
  		sys_poll = peer->minpoll;
--- 238,243 ----
  	 * cutout switch.
  	 */
! 	} else if (ftmp.l_ui > CLOCK_MAX_I || (ftmp.l_ui == CLOCK_MAX_I
! 	    && ftmp.l_uf >= CLOCK_MAX_F && !cutout)) {
  		tc_counter = 0;
  		sys_poll = peer->minpoll;