Re: ntpd(8) exits quietly after fork()
In the last episode (Mar 13), Kevin Kinsey said: > ntpd won't continue running on my "stratum 2" server (making our other > systems a tad untrustworthy "as time goes by"). > > $ uname -a > FreeBSD ezekiel.daleco.biz 6.2-RELEASE FreeBSD 6.2-RELEASE #5: Sat Jan 20 > 16:41:42 CST 2007 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/GENERIC i386 > > using ktrace and kdump I get this prior to exit: > > 12195 ntpd NAMI "/var/run/logpriv" > 12195 ntpd RET connect 0 > 12195 ntpd CALL sendto(0x4,0xbfbfdd50,0x3e,0,0,0) > 12195 ntpd GIO fd 4 wrote 62 bytes >"<13>Mar 13 13:32:06 ntpd: logging to file /home/kadmin/ntp.log" > 12195 ntpd RET sendto 62/0x3e > 12195 ntpd CALL clock_gettime(0,0xbfbfeb08) > 12195 ntpd RET clock_gettime 0 > 12195 ntpd CALL sigaction(0x1,0xbfbfeac0,0xbfbfeae0) > 12195 ntpd RET sigaction 0 > 12195 ntpd CALL fork > 12195 ntpd RET fork 12196/0x2fa4 > 12195 ntpd CALL exit(0) It seems you're missing the -i flag to ktrace, which means you aren't tracing the child of this fork operation. This ktrace output looks a lot like the code in ntpd.c:ntpdmain(), in which ntpd forks, the parent immediately exits, and the child continues. -- Dan Nelson [EMAIL PROTECTED] ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: ntpd(8) exits quietly after fork()
On Mar 13, 2007, at 3:46 PM, Kevin Kinsey wrote: The ktrace is on "ntpd -C /etc/ntp.conf -l $HOME/ntp.log" --- I'd seen nothing at all in /var/log/messages (was running tail on it while restarting it several times), so I pointed it there. The full ktrace is rather long, any point to posting it? It did complain about some missing files, but seemed to accept others and go on. Here's most of the complaints in snippage form 12195 ktrace NAMI "/sbin/ntpd" 12195 ktrace RET execve -1 errno 2 No such file or directory 12195 ktrace CALL execve(0xbfbfe710,0xbfbfec5c,0xbfbfec74) 12195 ktrace NAMI "/bin/ntpd" 12195 ktrace RET execve -1 errno 2 No such file or directory 12195 ntpd CALL open(0x280a2c48,0,0x1b6) 12195 ntpd NAMI "/etc/libmap.conf" 12195 ntpd RET open -1 errno 2 No such file or directory 12195 ntpd NAMI "/etc/malloc.conf" 12195 ntpd RET readlink -1 errno 2 No such file or directory These don't seem to be related, but IANAE ;-) It seems to be having problems locating the ntpd binary to fork/exec it as a child? Is it possible the path in the /etc/rc.d/ntpd script isn't sane? ntpd should be in /usr/sbin/ntpd Grepping "ntp" in /etc/syslog.conf returns nada, so that would explain why there's nothing there. I did get "status 2040" in $HOME/ntp.log, so I'm guessing bad driftfile was the issue? Showing your ntp.conf file would also help, but if you'd like to see an example of a working stratum-2 conf file which has been in use for quite some time: Nice, ty. Mine's simple: $ cat /etc/ntp.conf server time.nist.gov server navobs1.wustl.edu driftfile /var/ntpd.drift I've got it running fine now in FG (-n) option, and the slaves are happy ATM. I guess I could give it a "&" ;-) It did complain that sanity limit was exceeded after I started it with -n, which would explain this, maybe? You might try checking "ntpq -p" and seeing whether your offset is too large. In that case, killing ntpd, running "ntpdate -b time.nist.gov", and then restarting ntpd might help. However, it was exiting prior to any mention of this previously, and I was *quite certain* that this box did the DST thing just fine, aside from sendmail logging behind as discussed in a thread on questions. ntpd operates against GMT/UTC, and doesn't care about DST issues at all, fortunately. :-) Either way, thanks for the reply! You're welcome... -- -Chuck ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: ntpd(8) exits quietly after fork()
Chuck Swiger wrote: Hi, Kevin-- On Mar 13, 2007, at 1:14 PM, Kevin Kinsey wrote: ntpd won't continue running on my "stratum 2" server (making our other systems a tad untrustworthy "as time goes by"). $ uname -a FreeBSD ezekiel.daleco.biz 6.2-RELEASE FreeBSD 6.2-RELEASE #5: Sat Jan 20 16:41:42 CST 2007 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/GENERIC i386 using ktrace and kdump I get this prior to exit: [ ... ] The logging paths seen in the ktrace are rather non-standard-- perhaps ntpd doesn't have the right permissions to write to them? Normally, ntpd logs to the NTP facility and critical messages might appear in /var/log/messages, so additional clues are probably there. The ktrace is on "ntpd -C /etc/ntp.conf -l $HOME/ntp.log" --- I'd seen nothing at all in /var/log/messages (was running tail on it while restarting it several times), so I pointed it there. The full ktrace is rather long, any point to posting it? It did complain about some missing files, but seemed to accept others and go on. Here's most of the complaints in snippage form 12195 ktrace NAMI "/sbin/ntpd" 12195 ktrace RET execve -1 errno 2 No such file or directory 12195 ktrace CALL execve(0xbfbfe710,0xbfbfec5c,0xbfbfec74) 12195 ktrace NAMI "/bin/ntpd" 12195 ktrace RET execve -1 errno 2 No such file or directory 12195 ntpd CALL open(0x280a2c48,0,0x1b6) 12195 ntpd NAMI "/etc/libmap.conf" 12195 ntpd RET open -1 errno 2 No such file or directory 12195 ntpd NAMI "/etc/malloc.conf" 12195 ntpd RET readlink -1 errno 2 No such file or directory These don't seem to be related, but IANAE ;-) Grepping "ntp" in /etc/syslog.conf returns nada, so that would explain why there's nothing there. I did get "status 2040" in $HOME/ntp.log, so I'm guessing bad driftfile was the issue? Showing your ntp.conf file would also help, but if you'd like to see an example of a working stratum-2 conf file which has been in use for quite some time: Nice, ty. Mine's simple: $ cat /etc/ntp.conf server time.nist.gov server navobs1.wustl.edu driftfile /var/ntpd.drift I've got it running fine now in FG (-n) option, and the slaves are happy ATM. I guess I could give it a "&" ;-) It did complain that sanity limit was exceeded after I started it with -n, which would explain this, maybe? However, it was exiting prior to any mention of this previously, and I was *quite certain* that this box did the DST thing just fine, aside from sendmail logging behind as discussed in a thread on questions. If it's noise, I apologize. Buildworld should finish soon, and I'll monkey around with the driftfile meantime; we'll see if the issue persists. Oh, and edit syslog.conf and HUP. But, it'd been working fine for ages without all that. Either way, thanks for the reply! Kevin Kinsey -- Function reject. ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: ntpd(8) exits quietly after fork()
Hi, Kevin-- On Mar 13, 2007, at 1:14 PM, Kevin Kinsey wrote: ntpd won't continue running on my "stratum 2" server (making our other systems a tad untrustworthy "as time goes by"). $ uname -a FreeBSD ezekiel.daleco.biz 6.2-RELEASE FreeBSD 6.2-RELEASE #5: Sat Jan 20 16:41:42 CST 2007 [EMAIL PROTECTED]:/usr/obj/usr/src/ sys/GENERIC i386 using ktrace and kdump I get this prior to exit: [ ... ] The logging paths seen in the ktrace are rather non-standard-- perhaps ntpd doesn't have the right permissions to write to them? Normally, ntpd logs to the NTP facility and critical messages might appear in /var/log/messages, so additional clues are probably there. Showing your ntp.conf file would also help, but if you'd like to see an example of a working stratum-2 conf file which has been in use for quite some time: 1-pi# cat /etc/ntp.conf # /etc/ntp.conf, configuration for ntpd driftfile /etc/ntp.drift statsdir /var/log/ntp/ statistics sysstats filegen sysstats file sysstats type week enable #logconfig =syncevents +sysevents # +allclock #statistics loopstats peerstats clockstats #filegen loopstats file loopstats type day enable #filegen peerstats file peerstats type day enable #filegen clockstats file clockstats type day enable server time.nist.gov maxpoll 12 server bonehed.lcs.mit.edu maxpoll 12 server sundial.columbia.edu maxpoll 12 server wwv.otc.psu.edu maxpoll 12 #peer pi.codefab.com maxpoll 12 peer pong.codefab.com maxpoll 12 peer shot.codefab.com maxpoll 12 peer ns1.pkix.net maxpoll 12 restrict default nomodify restrict localhost #discard average 9 minimum 2 #restrict default limited restrict 64.152.61.123 kod # ...list of bad clients being fed "kod" or "ignore" trimmed... 2-pi# grep ntp /etc/syslog.conf ntp.debug /var/log/ntp/ntp.log 3-pi# ntpq -p remote refid st t when poll reach delay offset jitter == -time.nist.gov .ACTS. 1 u 41m 68m 37 49.991 7.961 0.580 *bonehed.lcs.mit .CDMA. 1 u 204 68m 377 20.057 -2.610 6.201 +hickory.cc.colu 128.59.39.48 2 u 245 68m 377 25.537 -1.196 7.415 -otc1.psu.edu.WWV.1 u 276 68m 377 36.047 -21.679 0.037 +pong18.145.0.30 2 u 274 1024 3770.257 -3.274 2.857 +shot65.212.71.1032 u 495 1024 3770.343 1.467 0.664 -ns1 129.6.15.29 2 u 929 1024 3760.389 -5.890 0.769 For more details, one could also see: http://ntp1.codefab.com/ntpstats/ntp_stats.txt http://www.pool.ntp.org/scores/199.103.21.227 -- -Chuck ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
ntpd(8) exits quietly after fork()
ntpd won't continue running on my "stratum 2" server (making our other systems a tad untrustworthy "as time goes by"). $ uname -a FreeBSD ezekiel.daleco.biz 6.2-RELEASE FreeBSD 6.2-RELEASE #5: Sat Jan 20 16:41:42 CST 2007 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/GENERIC i386 using ktrace and kdump I get this prior to exit: 12195 ntpd NAMI "/var/run/logpriv" 12195 ntpd RET connect 0 12195 ntpd CALL sendto(0x4,0xbfbfdd50,0x3e,0,0,0) 12195 ntpd GIO fd 4 wrote 62 bytes "<13>Mar 13 13:32:06 ntpd: logging to file /home/kadmin/ntp.log" 12195 ntpd RET sendto 62/0x3e 12195 ntpd CALL clock_gettime(0,0xbfbfeb08) 12195 ntpd RET clock_gettime 0 12195 ntpd CALL sigaction(0x1,0xbfbfeac0,0xbfbfeae0) 12195 ntpd RET sigaction 0 12195 ntpd CALL fork 12195 ntpd RET fork 12196/0x2fa4 12195 ntpd CALL exit(0) After this, I can't `pgrep ntpd` or find a pid with "ps -aux". I've found nothing in the logs; even using "-l $HOME/ntp.log". A windows box complains "no response" using Softros' "NTS". `ntpq -p" here shows ntpq -p remote refid st t when poll reach delay offset jitter ezekiel.daleco. .INIT.16 u 148 102400.0000.000 4000.00 I can confirm that ntpd will continue to run if called with "-n" (do not fork). I've started a "buildworld" cycle. Any other suggestions? Can I do anything else "debugging" wise? Machine is about as close to "production" as we get, so rebuild with a debug kernel isn't something we'd really want to do, I think Thanks, Kevin Kinsey -- Computer programmers do it byte by byte. ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
