[ntp:hackers] Modern FreeBSD NTP Stratum 1 server?
terje at tmsw.no
Thu Dec 17 05:44:44 UTC 2015
François Meyer wrote:
> Hi Terje,
> I have 2 of them running freebsd :
Thanks, both of these seems to be using the ATOM driver, right?
Did you compile a custom kernel or just kldload?
Can you send me the relevant config files? (kldload or 'options
PPS_SYNC', ./configure options, rc.conf, soft links in /dev, ntp.conf...)
> FreeBSD 10.1-RELEASE (PPS) #0: Thu Jan 29 09:23:25 UTC 2015
> remote refid st t when poll reach delay offset
> oPPS(0) .PPS. 0 l 52 64 377 0.000 0.000
> Cs5071A(0) .5071. 0 l 20d 64 0 0.000 14.308
> *saturne.obs-bes .PPS. 1 s 46 64 377 0.282 0.083
> ntp-p1.obspm.fr .XFAC. 16 s - 1024 0 0.000 0.000
> That one also implements a tailored Cs5071A driver reading TOD and
> leap info directly out of the 5071A serial line ; as you can see
> it is currently (physically) disconnected from the Cs but was doing
> well with an offset averaging around 0 and a jitter around 20 ms if I
> remember well (polls to the Cs serial line are buffered and sync-ed
> with the PPS before being sent to ensure consistency).
> The other one :
> FreeBSD 10.1-C3 (PPS) #0: Thu Jan 8 13:25:54 UTC 2015
> remote refid st t when poll reach delay offset jitter
> oPPS(0) .PPS. 0 l 23 64 377 0.000 0.017
> *ntp-p1.obspm.fr .MRS. 1 s 23 64 377 11.243 -0.043
> I run freebsd only on those machines so I am far from a freebsd
> specialist but I may be able to answer/check some of the questions you
> might have.
> Oe Wed, 16 Dece2015, Terje Mathsen wrote:
>> I have been trying, unsuccessfully, for a couple of days now to
>> replace my old S1 server (ntp1.tmsw.no) which was entered in the pool
>> with an IPv6 address only:
>> The new server was based on PC-BSD 10.1, then I downloaded all the
>> ports and all the kernel source code in order to build a custom kernel.
>> (I first tried to simply use kldload to load the PPS modulu which
>> seemed to work but when configuring ntpd (latest ntp-dev code) it
>> didn't seem like pps was located so the ntpd binary was built without
>> PPS support.)
>> Anyway, after the custom kernel was installed I did get one YES for
>> pps during configure, but that didn't seem to be enough, because when
>> I load ntpd I get messages in /var/log/messages stating that the
>> ppsapi is unusable. :-(
>> So my question to the list is: Does anyone have recent experience in
>> making ntpd + pps work on FreeBSD?
>> PS. The reason I'm doing this is because the old server crashed, so I
>> can't simply copy all the conf files from that one. :-(
>> - <Terje at tmsw.no>
>> "almost all programming can be viewed as an exercise in caching"
>> hackers mailing list
>> hackers at lists.ntp.org
- <Terje at tmsw.no>
"almost all programming can be viewed as an exercise in caching"
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