FreeBSD 5.4 - filesystem full

[Varshavchick Alexander]

I have an old enough server with FreeBSD 5.4 which from time to time 
complains about filesystem full. But the problem is that the partition 
in question has about 15G free space and more than 10000000 free inodes. 
Then all by itself the error dissapears, only to be repeated several hours 
later. What can it be and where to look? The server runs mainly apache and 
sendmail, nothing special.

Thanks and regards

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Alexander Varshavchick, Metrocom Joint Stock Company
Phone: (812)718-3322, 718-3115(fax)