[ntp:questions] stepout value

David Woolley david at ex.djwhome.demon.invalid
Fri Jul 26 06:58:50 UTC 2013

On 25/07/13 23:51, E-Mail Sent to this address will be added to the 
BlackLists wrote:
> BlackLists wrote:> unruh wrote:
>> from 4.2.6p5 source code ../ntpd/ntp_loopfilter.c
>>> #define CLOCK_MINSTEP   900.    /* default stepout threshold (s) */
>>> You can change this with either the -x or the tinker options.
>>> What it means is that if the system finds that the time offset is larger
>>> than 128 ms for more than 900 sec, then the system steps the clock.
>> (Shrug) ...
>> from ntp-dev-4.2.7p3##/ntpd/ntp_loopfilter.c source code
>> #define CLOCK_MINSTEP   300.   /* default stepout threshold (s) */
> FYI, if as the the OP said, they have RHEL5 circa 2007Mar15
>   it shipped with NTPd ntp-4.2.2p1 circa 2006JUL08
>    #define CLOCK_MINSTEP	900.	/* default stepout threshold (s) */
Also remember that Red Hat are unlikely to ship development builds and 
may well use a version that worked for them in the past, rather than the 
latest release version, especially as they often apply local patches 
(one should actually have said to look at the patch files as well as the 
source files, as RPMs work on the basis of providing a combination of 
original source code and patches, rather than the actual source code 
that has been built).

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