Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address	= 0x18
fault code		= supervisor read data, page not present
instruction pointer	= 0x20:0xffffffff81039651
stack pointer	        = 0x28:0xfffffe000373b230
frame pointer	        = 0x28:0xfffffe000373b280
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0

current process		= 12 (swi1: netisr 0)
trap number		= 12