[chrony-users] initstepslew seems to break chronyd

[MUZZULINI Frank <Frank.MUZZULINI@xxxxxxxxxxxxxx>]

Hi all,

 

A colleague asked me to investigate a problem with chrony on SL7.4.

The relevant part of the configuration file looks like this:

(We should probably add orphan to the local line, but that does not affect the behaviour)

local stratum 11

server 10.4.142.10 minpoll 5 maxpoll 8 iburst prefer

peer   10.5.141.208 minpoll 5 maxpoll 8 iburst

initstepslew 0 10.4.142.10 10.5.141.208

 

Both local time and the peer are about two seconds off.

When I start chronyd with this configuration, I end up with both sources being considered false tickers:

# chronyc -n sources -v

MS Name/IP address         Stratum Poll Reach LastRx Last sample              

===============================================================================

^x 10.4.142.10                   2   5   377    15  -2010ms[-2010ms] +/- 5384us

=x 10.5.141.208                 11   7   377    60    +26ms[  +26ms] +/-  282us

 

However, when I comment out the initstepslew line and restart chronyd, it quickly selects the stratum 2 server as the relevant source and everything is fine.

 

Is this a bug?

Any ideas what I could do to avoid this problem?

I don't want to use makestep, since time jumps at run time could kill our application.

 

# chronyd -v:

chronyd (chrony) version 3.1 (+CMDMON +NTP +REFCLOCK +RTC +PRIVDROP +SCFILTER +SECHASH +SIGND +ASYNCDNS +IPV6 +DEBUG)

 

 

--

Frank Muzzulini

Product Expert MHS

FREQUENTIS COMSOFT GmbH

 

Wachhausstr.. 5a, 76227 Karlsruhe, Germany
Phone:  +49 721 9497-2501

Fax:      +49 721 9497-129
Web:     www.frequentis-comsoft.com

E-Mail:   frank.muzzulini@xxxxxxxxxxxxxx

 

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