i have an fc5 box which suddenly, after it has been working for several days without problem, becomes very slow. Login need a couple of minute to complete, every command is very very slow,also top and vmstat require a lot of time to execute. The cpu is idle, disks are idle and I have not any strange logs in /var/log/messages.
A reboot (which takes a lot to complete) solves the problem, but after 4 or 5 days the problem come up again.
What can I do ? Really I do not know where to start!
Thanks a lot!