Re: crond, hwclock, and clockspeed

Lloyd Zusman dixit:

>However, it looks like "crond" is not taking the leapseconds into account.
>The following is an excerpt from /var/log/cron:
>
>  Sep 12 07:07:39 home crond[6187]: (ljz) CMD (/opt/bin/eachminute 1>/dev/null 2>&1)
>  Sep 12 07:08:39 home crond[6191]: (ljz) CMD (/opt/bin/eachminute 1>/dev/null 2>&1)

I can reproduce stuff like that:
   Sep 12 12:35:39 odem cron[29918]: (root) CMD (/usr/bin/nice /usr/sbin/sendmail -L sm-msp-queue -Ac -q)

Probably, cron doesn't run at the full minute. From crontab:
   #minute hour    mday    month   wday    command
   #
   # sendmail clientmqueue runner
   35      */3     *       *       *       /usr/bin/nice /usr/sbin/sendmail -L sm-msp-queue -Ac -q

So this is okay.

>Also, I have noticed the following behavior with the "hwclock" program:

No comment about this, since I've not touched GNU/Linux since 2000.
BSD doesn't have a "hwclock" equivalent since we do the right thing
(kernel sets CMOS time).

bye,
//mirabile
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