I enable ipfw rules on my mail server. After some time server collapsed. In /var/log/messages is nothing information of my damage. But when I connected monitor, I saw some troubles with swap
swap_pager: indefinite wait buffer
Then I entered command dmesg and saw:
total configured swap (1048576 pages) exceeds maximum recommended amount (980224 pages). increase kern.maxswzone or reduce amount of swap.
What I must do? Increase kern.maxswzone? Or increase RAM? Or increase swap?
Сan this problem be due ipfw? Before ipfw everything worked. RAM on server - 512 Mb.