Confused: 'tail -f' how can this happen???

[Reg Clemens]

OK, I dont understand this at all.
I was debugging another problem, and had a 'tail -f' running on my maillog 
file.
It showed data down to the  present, namely 15:18:18

Something had gone by fast enough that I brought the maillog up in an editor
but IT only showed data down to 14:02:16

Looking at the 'ls' of /var/log, the maillog file shows a write date of 14:02.

If I do a 2nd tail -f, it too stops at 14:02.

What is going on with the file system to cause the bizare behaviour?
Why cant I see ALL the data in maillog, or why could I see it only once?

Confused.
-- 
                                        Reg.Clemens
                                        reg@xxxxxxx


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