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On Friday 17 August 2001 18:30, Alan N. wrote:
> I'm running a Linux machine at work ( very sucessfully I might add! )
> that basically is an automated FTP server to get weather maps from
> the TV weatherman's SGI network and FTP 'em to the tv stations
> website.  I checked the machine Monday, seeing that today ( Friday )
> would be the machines 500th day of uptime.  So I went in there today
> to gloat at it and it had an uptime of 3 days.!! WHAT this cannot
> be!!

Great Story!  What kernel are you running, by the way?

> I searched in /var/logs and found the file which contains the boot up
> log.. Date on is was Sept. 27, 1999.  So I cannot see where the
> machine rebooted, crashed and the graphix on the website never
> hiccupped, they are updated every 10 minutes with timestamps placed
> on them with the SGI's creation of the graphx..
>
> Anyone know WHY this is.. I was really bummed. It says 3 days uptime
> but I'm convinced it's 500..

It's uptime *is* 500 days.  The problem is the 32 bit word 
and the fact that the kernel's clock is 100th of a second.

Therefore, 
  (2**32)/(24*60*600*100) = 497 days 2 hours 27 minutes 53 second

Ron
- -- 
Fri Aug 17 19:20:40 2001
Seq.  Timestamp                    Uptime
- ----  ------------------------    ------------
 1: Thu May 17 01:44:04 2001  -  35 15:31:51 - 2.4.3-20mdk
 2: Mon Jul 16 16:28:17 2001  -  32 02:52:23 - 2.4.6-3mdk <<--
 3: Thu Jun 21 17:33:18 2001  -  10 05:29:02 - 2.4.3-20mdk
 4: Sun Jul  1 23:03:05 2001  -   7 10:13:18 - 2.4.3-20mdk
 5: Wed Jul 11 15:11:11 2001  -   5 01:16:26 - 2.4.6-3mdk
 6: Tue Jul 10 02:55:19 2001  -   1 09:18:42 - 2.4.3-20mdk
 7: Wed Jul 11 12:14:35 2001  -   0 02:20:37 - 2.4.6-3mdk
 8: Wed Jul 11 14:39:19 2001  -   0 00:31:20 - 2.4.6-3mdk
 9: Wed Jul 11 14:35:45 2001  -   0 00:03:01 - 2.4.6-3mdk
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