i add the "irqpoll" option to kernel line. after the system booted i log into X with tty1 also login as root with the command " tail -f /var/log/messages" for monitoring . After 10 to 20 minutes i got the same message again but this time immediately the system froze up ! i tried it 5 times now and each time is the same result.i also noticed that the system was behaving very slowly till the message came up like usually folder copy operation - i usually get 70-90MB/s according to vmstat 1 comand, but with irqpoll the maximum i noticed was like 10MB/s. Am i doing something wrong ?