virtio_pci0: host features: 0x79bf8064 <EventIdx,RingIndirect,AnyLayout,NotifyOnEmpty,SetMacAddress,GuestAnnounce,RxModeExtra,VLanFilter,RxMode,ControlVq,Status,MrgRxBuf,TxAllGSO,MacAddress,DynOffload>
virtio_pci0: negotiated features: 0x198f8020 <RingIndirect,AnyLayout,NotifyOnEmpty,SetMacAddress,VLanFilter,RxMode,ControlVq,Status,MrgRxBuf,MacAddress>
vtnet0: MAC address: 52:54:00:12:34:56
Fatal trap 12: page fault while in kernel mode
cpuid = 5; lapic id = 5
fault virtual address	= 0xfffff80118320000
kernel: type 12 trap, code=2
 stopped
Stopped at      ffs_mountfs+0x58e:      movl    %ecx,-0x4(%rsi)