> Try unmounting each of these filesystems and doing an fsck -f on each.  If
> that doesn't help, no ideas here.

That's what I did and the output looks true: accoding to a du command to
my homedir (mounted on /dev/sd0e).

<< 3458 files 83712 used, 908117 free
(1157 frags, 113370 blocks, 0.1% fragmentation) >>

But `df -k /home` still gives me:
<< /dev/sd0e  1282043  373926  779912  32%  /home >>

There is one point that worries me. What would happen if I fill my
partition with, say 800,000K of data. I know that there is sufficient
disk space left, but what will happen? Will NetBSD crash ? Maybe it
won't but `df` will give erroneous data ?

-- 
Gwenole Beauchesne