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Date:      Wed, 3 Apr 2002 17:21:30 +0100
From:      Ceri <setantae@submonkey.net>
To:        Tom Rhodes <darklogik@pittgoth.com>
Cc:        "Gary W. Swearingen" <swear@blarg.net>, freebsd-doc@FreeBSD.ORG
Subject:   Re: docs/36457: [PATCH] timed(8)
Message-ID:  <20020403162130.GA60113@submonkey.net>
In-Reply-To: <20020403111353.5dcc5a97.darklogik@pittgoth.com>
References:  <200204020310.g323A2J41698@freefall.freebsd.org> <it4rit92n4.rit@localhost.localdomain> <20020403111353.5dcc5a97.darklogik@pittgoth.com>

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On Wed, Apr 03, 2002 at 11:13:53AM -0500, Tom Rhodes wrote:
> On 02 Apr 2002 14:06:23 -0800
> swear@blarg.net (Gary W. Swearingen) wrote:
> 
> > <trhodes@FreeBSD.ORG> writes:
> 
> [SNIP]
>  
> > On further examination, I guess it'd be better yet without commas
> > in the short list of three items, so I'd prefer the last of these:
> > 
> > If two or more time daemons, whether timed, or ntpd(1), or others
> > try to adjust the same clock, temporal chaos will result.  [wrong]
> > 
> > If two or more time daemons, whether timed, or ntpd(1), or others,
> > try to adjust the same clock, temporal chaos will result.  [ok]
> > 
> > If two or more time daemons, whether timed or ntpd(1) or others, try
> > to adjust the same clock, temporal chaos will result.  [best]
> 
> If two or more time daemons attempt to access the same clock, temperal
> chaos will result. [better?]

Temporal chaos will result if two or more time daemons attempt to adjust
the same clock.

[or]

Multiple time daemons attempting to adjust the same clock will cause a
rift in the space-time continuum.

(You can change that last bit to read "cause temporal chaos" if you prefer;
I got bored of reading that phrase already :)

> In my opinion, saying timed(8) and ntpd(8) again would be nothing but
> repeating.  At this point I feel the user or reader should know better
> than to start two time daemons.

Always best to assume that they don't know, I've found.  How's this :

Do not attempt to run more than one instance of a time daemon (this includes
running ntpd and timed together).  Multiple time daemons attempting
to adjust the same clock will cause temporal chaos.

> What do you think about just omitting the daemon names here all
> togeather. If we use your last sentence, i'd like to omit the ``or
> others'' because it doesn't sound right, at least to me it doesn't... 
> I'd rather get an opinion on this though.

Perhaps omitting mention of ntpd and timed is good, since the next sentence
kind of makes that clear:

     If both timed and another time daemon
     are run on the same machine, ensure that the -F flag is used, so that
     timed never attempts to adjust the local clock.

Ceri

-- 
keep a mild groove on

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