Re: uptime limit
--On February 19, 2009 2:49:21 PM +0100 Matus UHLAR - fantomas
<uhlar@fantomas.sk> wrote:
On 19.02.09 11:38, Paa.listas wrote:
I have a Server running since 2007, but when I run uptime it's
tells me the system was running for only 88 days.. There are any
limits in the uptime utility?
I think it rotates after some ~497 days, but only with older (2.4?)
kernels on 32-bit systems. Basically it happens when 32-bit counter of
timer tick (100Hz) overflows:
(2^32-1)/60/60/24/100
497.10
Yup this is exactly what happens. We've got a machine with a bit newer
setup that we're leaving running simply because it's been up for over 1000
days! :D
11:38:48 up 1032 days, 16:03, 1 user, load average: 0.09, 0.06, 0.02
But that's a 2.6 kernel based system. 2.4 well...here's a machine that's
been up probably atleast as long...
11:39:43 up 2 days, 1:36, 0 users, load average: 0.00, 0.00, 0.00
It's last reboot was back in May of *2007*. So it's been around a couple
times.
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