Disc Free (df) weirdness (FC2)

Today, I looked at my disc free space, after deleting some files.
I found that, after deleting approx. 28M of files, that df reported
the disc as being 93% full. Well, the last time I tried looking,
it was 85% full, just a couple of days ago. I have created a couple
of text files, and read some e-mail. But why was my disc 8% more
full than before?

I searched and searched for where the space was hiding, and could
not find it. I was comparing with the output from the earlier
du -s /some/path/* | sort -gr | head, and couldn't find it.

I did some sync commands, and tried again, and it just looked
like things should be smaller.

Eventually, I rebooted. Now du thinks that my disc is 84% full.

I don't automatically delete /tmp, and it only has 136M in it,
anyway.

$ df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/hda5              7633264   6081748   1163768  84% /
/dev/hda3                99075     24602     69358  27% /boot
none                    124044         0    124044   0% /dev/shm

At 93%, it must have been about 7098935 blocks used. How did a
reboot free up 1017187 blocks?

$ du --version
du (coreutils) 5.2.1
$ uname -a

Mike
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