Fatal trap 12: page fault while in kernel mode
cpuid = 2; lapic id = 2
fault virtual address	= 0xfffff80118a60000
fault code		= supervisor read data, page not present
instruction pointer	= 0x8:0xffffffff82607640
stack pointer	        = 0x10:0xfffff801180f6618
frame pointer	        = 0x10:0xfffff801180f66d8
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		= 989
current thread          = pri 6 
kernel: type 12 trap, code=0

CPU2 stopping CPUs: 0x0000003b
 stopped
Stopped at      vinum_scandisk+0x590:   cmpb    $0xa,(%rax)