When you use a custom kernel, you usually get to keep the pieces.
Go buy a new car and change the engine and then see if they honor the warranty.
We stopped using Dell machines some time ago. For some reason there reliability has been steadily falling. I don't know if they are doing non-standard stuff in their bios's or just using less than optimal hardware to cut costs, but I probably won't go back.
agree. I have turn back to original CentOS kernel, and then restart my program. In other words, my program run without PF_RING. By now, nothing happens. Therefore, it seems the bug results from PF_RING patch.
Thanks for your help.