I have just compiled my kernel using 2.5.24 from kernel.org, with the 
.config attached and i have this strange problem.
my Swap its active, but it never used.

root@hash:~# free
              total       used       free     shared    buffers     cached
Mem:        184196     149972      34224          0          0      89856
-/+ buffers/cache:      60116     124080
Swap:       136512          0     136512



-- 
Mauricio Pretto
Gerente de Produtos
Interage Integradora
http://www.interage.com.br