One of the workaround for old CentOS/CentOS kernel (6.1-6.3) which may "Systems hang due to leap-second livelock." (quoting redhat), is to set tinker step in /etc/ntp.conf. Bug the documentation is not clear about the unit/syntax (http://doc.ntp.org/4.2.6p5/miscopt.html#tinker).

What is the exact syntax (unit) for tinker step?

Also, how can I query the current value of tinker step on a running NTP daemon?

1 Answer 1


The unit seems to be seconds, so the line to add in /etc/ntp.conf should be:

tinker step 0.128

(This Should be 0.128s, which is the default value)

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