[LUG] uptime oddity

[Neil Williams <linux@xxxxxxxxxxxxxx>]

Found this on the Linux Counter site:

http://counter.li.org/reports/uptimestats.php
The Linux kernel (at least up to 2.4.2) has a flaw: It computes the result of 
the "uptime" based on the internal "jiffies" counter, which counts the time 
since boot, in units of 10 milliseconds. 
This is typecast as an "unsigned long" - on the Intel boxes, that's an 
unsigned 32-bit number. 
Well, it turns out that in a 32-bit number, you can store 497.1 days before 
the number wraps. 

I didn't know that so I thought I'd let you all know too.
:-))

(How many of us are actually on Linux Counter anyways?)
user #198210

-- 

Neil Williams
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