login: DF-1075: kmalloc(0) returned 0xfffffffffffffff8 (ZERO_LENGTH_PTR expected 0xfffffffffffffff8)
DF-1075: NULL check would PASS (BUG: missed) (bug: sentinel is non-NULL)
DF-1075: about to memcpy 6 bytes into &mcfilters[0] = 0xfffffffffffffff8
DF-1075: THIS SHOULD PANIC WITH: Fatal trap 12: page fault


Fatal trap 12: page fault while in kernel mode
cpuid = 5; lapic id = 5
fault virtual address	= 0xfffffffffffffff8
fault code		= supervisor write data, page not present
instruction pointer	= 0x8:0xffffffff82600091
stack pointer	        = 0x10:0xfffff80117e697c8
frame pointer	        = 0x10:0xfffff80117e697e8
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		= 1041
current thread          = pri 6 
kernel: type 12 trap, code=2

CPU5 stopping CPUs: 0x0000001f
 stopped
Stopped at      df1075_modevent+0x91:   movl    $0x3333,(%rbx)
db>