Fatal trap 12: page fault while in kernel mode
cpuid = 3; lapic id = 3
fault virtual address	= 0xfffff8005434a000
fault code		= supervisor read data, page not present
instruction pointer	= 0x8:0xffffffff809d4e34
stack pointer	        = 0x10:0xfffff80117ffb1f0
frame pointer	        = 0x10:0xfffff80117ffb228
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		= 901
current thread          = pri 6 
kernel: type 12 trap, code=0

CPU3 stopping CPUs: 0x00000037
 stopped
Stopped at      calculate_crc32c+0x84:  movzbl  -0x1(%rcx),%r9d
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