[ntp:questions] Arcron (type 27) driver users needed

David L. Mills mills at udel.edu
Fri Sep 23 17:17:59 UTC 2011


Joe sent be a receiver and I have finally verified it works sorta. It 
took a couple of weeks before it found WWVB, but it did. I connected it 
to deacon for test. When it first came up ntpq reported it as working, 
but after a couple of minutes the driver aparently went into a loops and 
stayed there. At least ntpq timed out for repeated pe queries. I left it 
commented out to aviiod posssible gattery exhaust. I need a little help 
here, as I cannot clearly see what I am doing.


Joe Landers wrote:

> Dave,
> I have a couple of Arcron's, although I don't actively use them anymore.
> If you let us know exactly what you'd like us to do, we'd be happy
> to help. Alternatively, I can ship one to you or Harlan and you can 
> verify the fix yourself.
> Joe
> On 7/20/2011 8:33 PM, Dave Hart wrote:
>> If you use the refclock_arc.c driver (127.127.27.*) please reply to me
>> and mention which receiver and radio station you use.  The driver
>> supports MSF, DCF, and WWVB.
>> I'm asking because five years ago, a bug report was filed indicating
>> the driver was dependent on the system's time zone, when it should be
>> independent of it.  The driver maintainer provided a patch, and the
>> reporter of the bug said it cured his problem.  Then, unfortunately,
>> the bug was dropped on the floor and the fix never integrated into the
>> distributed ntpd sources.  Details at:
>> http://bugs.ntp.org/402
>> Harlan and I are embarrassed by the oversight and would like to
>> resolve it, but also aware the proposed fix is not
>> backwards-compatible and risks breaking currently-functioning setups.
>> Additionally, we are both leery of making changes to a reference clock
>> driver without adequate testing.  I would like to see the change
>> tested against several radio stations and with the system timezone set
>> to UTC and local time.
>> Cheers,
>> Dave Hart
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