Fatal user address access from kernel mode from kldload at ffffffff826004f0


Fatal trap 12: page fault while in kernel mode
cpuid = 2; lapic id = 2
fault virtual address	= 0x60
fault code		= supervisor write data, page not present
instruction pointer	= 0x8:0xffffffff826004f0
stack pointer	        = 0x10:0xfffff80117aa37a8
frame pointer	        = 0x10:0xfffff80117aa37b8
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		= 1165
current thread          = pri 6 
kernel: type 12 trap, code=2

CPU2 stopping CPUs: 0x0000003b
 stopped
Stopped at      gmux_switchto+0x10:     movl    %edi,0x60(%rbx)
db>