Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address	= 0x0
fault code		= supervisor read data, page not present
instruction pointer	= 0x20:0xffffffff81a3b713
stack pointer	        = 0x28:0xfffffe0056c8a1c0
frame pointer	        = 0x28:0xfffffe0056c8a6f0
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		= 2 (clock (0))
rdi: 0000000000000000 rsi: 0000000000000000 rdx: 000000000b064f60
rcx: fffffe00033eee30  r8: 0000000000000000  r9: 00000000060080fe
rax: fffffe00033eee30 rbx: fffffe006da353e0 rbp: fffffe0056c8a6f0
r10: aa03000000000000 r11: 000000000000001f r12: fffffe0056c8a4c0
r13: fffffe0056c8a500 r14: 0000000000000000 r15: fffffe00829b6330
trap number		= 12
panic: page fault
cpuid = 1
time = 1729404875
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe0056c898f0
kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe0056c89a50
vpanic() at vpanic+0x280/frame 0xfffffe0056c89c10
panic() at panic+0xb5/frame 0xfffffe0056c89cd0
trap_fatal() at trap_fatal+0x7f2/frame 0xfffffe0056c89df0
trap_pfault() at serialport: VM disconnected.