syncing disks... 0 0 0 
done


Fatal trap 12: page fault while in kernel mode
cpuid = 0; lapic id = 0
fault virtual address	= 0xfffff801192f5020
fault code		= supervisor read data, page not present
instruction pointer	= 0x8:0xffffffff8095d06a
stack pointer	        = 0x10:0xfffff8008d1ec6d8
frame pointer	        = 0x10:0xfffff8008d1ec708
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		= 1
current thread          = pri 31 
kernel: type 12 trap, code=0

CPU0 stopping CPUs: 0x0000003e
 stopped
Stopped at      hammer2_xop_helper_cleanup+0x5a:        cmpq    $0,0x20(%rax,%r15,1)
db>