df5520: isa_dma_acquire(1) = 0
df5520: isa_dma_init(1,64) = 0 (64-byte bounce chunk in the <16MB arena)
df5520: isa_dmastart(READ, 64 bytes, chan 1) programmed
df5520: isa_dmadone(READ, nbytes=0x11000, chan 1): unclamped bcopy out of the 64-byte bounce buffer


Fatal trap 12: page fault while in kernel mode
cpuid = 3; lapic id = 3
fault virtual address	= 0xffffffff82604000
fault code		= supervisor read data, page not present
instruction pointer	= 0x8:0xffffffff80bcaa0a
stack pointer	        = 0x10:0xfffff801166db780
frame pointer	        = 0x10:0xfffff801166db7c8
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		= 1034
current thread          = pri 6 
kernel: type 12 trap, code=0

CPU3 stopping CPUs: 0x00000037
 stopped
Stopped at      memmove+0x10a:  repe movsq      (%rsi),%es:(%rdi)
db>