Fatal trap 9: general protection fault while in kernel mode
cpuid = 5; lapic id = 5
instruction pointer	= 0x8:0xffffffff8068c065
stack pointer	        = 0x10:0xfffff801183cf5f8
frame pointer	        = 0x10:0xfffff801183cf798
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, long 0, def32 0, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= 42646
current thread          = pri 6 
kernel: type 9 trap, code=0

CPU5 stopping CPUs: 0x0000001f
 stopped
Stopped at      sysctl_devices.part.15+0x35:    movq    0x18(%rbx),%rbx
db>