Hi Shawn,

​I doubt this has anything to do with vtnet. My guess is that
netisr_proto[NETISR_ETHER].np_handler(m) is ​NULL for some reason. Do
you have a dump?

core.txt is attached. I've also uploaded it to the link below in case
the attachment is scrubbed.

http://0xfeedface.org/~shawn/2014-12-08_2028_core.txt

 Is the core dump available ?

As Bryan mentioned, this is a NULL function pointer deref and not a data access so is possibly related to corruption of data structures rather than a bug in the virtio driver. The core dump would be able to point to what went wrong.

later,

Peter.

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