I am trying to use 2.22-bigmem kernel on Dell R900( wherein 4 Xeon E7310's and 16G RAM). When I boot it, it goes well until it dectected 16 CPU's and display information "Brought up 16 CPUs" and then the boot process suspends!! PS. It works well with 2.22 kernel(non-bigmem)! Can anyone help to figure the cause? Thanx