SAVE A SOUL ...uptime

[Duane Attaway]

On Sun, 24 Nov 2002, Tony Hammitt wrote:

> On to linux stuff... Uptime contest. Can anyone beat this on a currently 
> running, in-use-daily desktop system?
> 
> $ w
> 3:20pm up 685 days, 18:41, 3 users, load average: 0.00, 0.00, 0.00

I'm not even close, but I'm trying to figure out why my uptime counter 
reset after 45 days:

attaway root # w
 17:49:33  up 12 days, 18:33,  5 users,  load average: 0.09, 0.10, 0.09
USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU  WHAT
root     vc/6     -                 8Oct02  4days  0.50s  0.38s  -bash 
dattaway pts/0    satellite        Thu12pm  5.00s 25.22s 25.15s  pine 
dattaway pts/1    satellite        Fri 7am 10:15m  3.10s  0.33s  -bash 
dattaway pts/2    satellite        Thu 4pm 29:55m  2:45m  0.20s  /usr/sbin/sshd
root     pts/3    satellite         5:47pm  1.00s  0.21s  0.10s  w 

Look at the first login date.  I can't understand why the /proc/uptime
counter would reset itself.  No failed processes, no panics, no dropped
connections (pine, shells, etc,) just a confusing uptime that made me
think the computer reset itself.  It never did.  The last syslog restart
entry was 57 days ago.  Odd.

What can make the uptime counter reset?