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List:       suse-security
Subject:    Re: [suse-security] uptime of a server
From:       Robert Davies <rob_davies () ntlworld ! com>
Date:       2003-09-08 11:11:02
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On Monday 08 Sep 2003 11:59, Markus Gaugusch wrote:
> On Sep 8, mailinglists <mailinglists@belfin.ch> wrote:
> > my primary dns server was up for 500 days. Now I see in top that it's
> > been up for only 3 days. No trace of reboot neither in messages nor in
> > last log. Does top start over at 0 if a certain amount of up-days have
> > been reached? Or how do I have to interprete that?
>
> I think there is an overflow at around 480 days. Look at /proc/uptime,
> maybe there is another value there.

There has been some discussion of uptime wraparound in summary articles of 
kernel development on http://lwn.net, IIRC some fixes went in last year, so 
you could check the exact max. reportable uptime for different kernel 
versions by googling for it.

Rob


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