Number of CPU's...

Hi, A while back we had a discusion about how to detect the number of cpu's that were really on the system. The previous discussion was centered around hyperthreading, but I am not really concerned with that aspect of the problem. What I would like to be able to do is be able to know how

kernel compile problem

I have a laptop on which I am trying to build a custom kernel with a custom aironet wireless driver with which I plan to do network analysis on a 802.11b wireless network (raw 802.11b packet capture).