Does anybody have a sample of a NMEA device with the 1024 week bug?

Eric S. Raymond esr at thyrsus.com
Wed Apr 26 09:25:06 UTC 2017


Trevor N. via devel <devel at ntpsec.org>:
> I have a device that will rollover after week 1998 (in 2018) that I
> just tested with a GPS simulator set to 2 years in the future,
> attached to ntpd classic with a +2 year offset in get_ostime (and
> "disable ntp" in conf)  and ntpcal_get_build_date() of 2016. The
> 512-week-around-receive-timestamp code in the driver fixed the
> timecode timestamp from 1999-09-10 to the proper date.

Oh, that's good.

Please test with our code, if that's convenient.
-- 
		<a href="http://www.catb.org/~esr/">Eric S. Raymond</a>

Please consider contributing to my Patreon page at https://www.patreon.com/esr
so I can keep the invisible wheels of the Internet turning. Give generously -
the civilization you save might be your own.



More information about the devel mailing list