ntp issue: xntpd changes time incorrectly - help

From: U Zee (uzee001@yahoo.com)
Date: Fri Nov 30 2007 - 15:23:33 EST


Hi All,
  My first time here, I went through the FAQ and archives but no luck. I'm including ALL the details as the FAQ suggests.
  System command outputs are at the end.
  I have an old production machine (Netra T12) running Solaris 9 and a few days ago started to switch the time back by 1 hour. I restarted xntpd and it worked fine but again about 15 minutes after the hour it did the same thing.
  I have checked the man pages and exhausted pretty much the online resources that I could find but can't understand whats wrong. I have compared this to another box with the same ntp config (ntp.conf) and the same ntp server list and that other box is also running Solaris 9 but that one is working fine and xntpd on that has been running since March. I thought of the DST patch but both the machines had the DST patch applied around March 8 2007. I have tried zeroing out/removing the drift file also - no luck. The ntp server is absolutely fine and has the correct time. I also checked the box's system controller and that has the correct time too, the only difference is that the SC shows the box has been up for 547 days - which is wrong. The box has been up for 260+ days only (booted March 7 2007). The timezone is Eastern.
  For now I'm running a temporary script that restarts xntpd every hour, which is keeping the time current and letting cronjobs, etc. to occur correctly but that obviously is not the right solution.
  I have not rebooted it yet as I will need to coordinate with application folks, but I wanted to first understand/troubleshoot.
  I would really appreciate any help/advixce/suggestions....
  Thanks
  -uzee
   
  From the system:
  =============
  root@xxxxxx # uname -a
  SunOS xxxxxx 5.9 Generic_112233-12 sun4u sparc SUNW,Netra-T12
   
  (Checking DST patches)
  root@xxxxxx # showrev -p|grep 112874
  Patch: 112874-15 Obsoletes: Requires: 112233-05 Incompatibles: Packages: SUNWcsr, SUNWcsl, SUNWcslx, SUNWarc, SUNWarcx, SUNWcstl, SUNWcstlx, SUNWdpl, SUNWdplx, SUNWhea
  Patch: 112874-33 Obsoletes: 113165-01, 113475-03, 115480-01 Requires: 112233-11 Incompatibles: Packages: SUNWcsr, SUNWcsl, SUNWcslx, SUNWarc, SUNWarcx, SUNWcstl, SUNWcstlx, SUNWdpl, SUNWdplx, SUNWhea
  Patch: 113319-11 Obsoletes: 113481-03 Requires: 112874-07 Incompatibles: Packages: SUNWcsl, SUNWcslx, SUNWarc, SUNWarcx, SUNWnisu
  Patch: 113475-02 Obsoletes: 113165-01 Requires: 112874-06 Incompatibles: Packages: SUNWcsl, SUNWcslx
  Patch: 113476-05 Obsoletes: 113152-01, 113166-01 Requires: 112874-06, 112960-03 Incompatibles: Packages: SUNWcsl, SUNWcslx
  Patch: 114370-02 Obsoletes: Requires: 112874-13 Incompatibles: Packages: SUNWcsl, SUNWcslx, SUNWhea
  Patch: 112839-04 Obsoletes: 112962-01 Requires: 112874-13 Incompatibles: Packages: SUNWcsl, SUNWcslx, SUNWmdb, SUNWmdbx
  root@xxxxxx #
  root@xxxxxx # showrev -p|grep 113225
  Patch: 113225-01 Obsoletes: Requires: Incompatibles: Packages: SUNWcsu
  Patch: 113225-08 Obsoletes: Requires: Incompatibles: Packages: SUNWcsu
  root@xxxxxx #
  root@xxxxxx # zdump -v $TZ|grep 2007
  US/Eastern Thu Nov 29 20:47:51 2007 UTC = Thu Nov 29 15:47:51 2007 EST isdst=0
  US/Eastern Sun Mar 11 06:59:59 2007 UTC = Sun Mar 11 01:59:59 2007 EST isdst=0
  US/Eastern Sun Mar 11 07:00:00 2007 UTC = Sun Mar 11 03:00:00 2007 EDT isdst=1
  US/Eastern Sun Nov 4 05:59:59 2007 UTC = Sun Nov 4 01:59:59 2007 EDT isdst=1
  US/Eastern Sun Nov 4 06:00:00 2007 UTC = Sun Nov 4 01:00:00 2007 EST isdst=0
  root@xxxxxx #
   
  root@xxxxxx # who -br
  . system boot Mar 7 11:07
  . run-level 3 Mar 7 11:09 3 0 S
  root@xxxxxx # cat /etc/TIMEZONE | grep -v "^#"
  TZ=US/Eastern
  CMASK=022
  LANG=C
  root@xxxxxx #
  root@xxxxxx # ps -ef|grep xnt
  root 28531 1 0 15:16:24 ? 0:00 /usr/lib/inet/xntpd
  root 21339 1 0 17:16:10 ? 0:00 /bin/sh ./xntpd-restart.sh
  root 7438 5764 0 15:48:59 pts/5 0:00 grep xnt
  root@xxxxxx #

       
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