[Pool] Off by a second leap second failures

Philip Gladstone philip at gladstonefamily.net
Thu Jul 16 02:37:10 UTC 2015


On 15-Jul-2015 12:44, Miroslav Lichvar wrote:
> The NTPv4 RFC is ambiguous on this point, there is "last minute of the 
> day has 61 seconds" and also "last minute of the current month". I 
> think it's meant to be only the last day, i.e. what the current 
> versions of ntpd do. Allowing the leap to be announced in whole month, 
> as we can see with ntp versions before 4.2.6, was a bad idea. 
Is there an official recommendation on what to do with the leap second 
bits? In particular for implementations that are not based on the 
standard NTP code.

Philip


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