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Re: [gpsd-dev] Updated docs on NTP segment management

From: Eric S. Raymond
Subject: Re: [gpsd-dev] Updated docs on NTP segment management
Date: Tue, 17 Feb 2015 15:04:53 -0500
User-agent: Mutt/1.5.23 (2014-03-12)

Gary E. Miller <address@hidden>:
> >  * By default ntpd creates only 4 segments.  
> By default, ntpd creates and uses no segments.

OK.  *Wow* the documentation is misleading on this.
> >  * Started as root, gpsd does as ntpd when attaching (creating) the
> >  * segments.  In contrast to ntpd, which only attaches (creates)
> >  * configured segments, gpsd creates all segments.  Thus a gpsd will
> >  * bve default create two segments 4 and 5 that an ntpd with default
> by default create four segments (), 1, 2 and 3) that an ntpd with default

No, NTPSHMSHMSEGS = 2 * MAX_DEVICES.  It's going to be 0..7.

In the next round I want to change this so the non-root segments are only
created as needed during device opens.
                <a href="";>Eric S. Raymond</a>

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