[df5632] attach done: iicbus=0xfffff80117719040 cdev=0xfffff8008f9c14c0 childbusy=0
[df5632] STAT: iicbus=0xfffff80117719040 devclass=iicbus driver=iicbus state=3 softc=0xfffff8008d6a1370
[df5632] STAT: nchildren=3
[df5632] STAT: child[0] dev=0xfffff80117718fa0 devclass=ic unit=0 driver=(none) state=0
[df5632] STAT: child[1] dev=0xfffff80117718f00 devclass=iic unit=0 driver=(none) state=0
[df5632] STAT: child[2] dev=0xfffff80117718e60 devclass=iicsmb unit=0 driver=(none) state=0
Fatal trap 12: page fault while in kernel mode
fault virtual address	= 0xfffffffc131cc228
current process		= 1477
Stopped at      devclass_add_device+0xf6:       movq    %r14,(%rdx,%rax,1)