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glt 04-22-2010 04:29 PM

uptime dropped dramatically, but no reboot logged anywhere
 
Hi Guys,

This is an observation of something that I can't explain.
Its not a problem in itself.

I happen to log on to our most reliable server to check
some other issue. Just to gloat I decided to look at the
uptime. Last count was >450 days. Suddenly its 20 days!
"Huh!", thinks I, "Must have been a power outage I missed".
So I looked in messages -no sign of a reboot in there.
Eventually I looked at dmesg. Its timestamp is:
Nov 20 2008. That's 516 days ago which I feel is roughly
what I would have expected.

So the question is, "Does uptime have maximum value?".
If not then what could be going on??

Cheers,
Geoff

Env:
Redhat Linux Release 9
2.4.20-30.9
Yes. Its way old! Nothing I can do about that.

DrLove73 04-22-2010 05:45 PM

It is know bug on those old kernels to reset around 500 days.

http://forums.star-os.com/showpost.p...9&postcount=24
http://forums.star-os.com/showthread.php?t=6245

http://dannyman.toldme.com/2006/08/1...-uptime-reset/

glt 04-23-2010 09:00 AM

Hi DrLove73,

Thanks for that. I assumed as much.

Cheers,
Geoff


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