On Fri, Nov 30, 2018 at 7:36 AM David Ahern <dsah...@gmail.com> wrote: > > On 11/30/18 7:58 AM, Ido Schimmel wrote: > > Can you please share the reproducer (assuming it exists)? I don't really > > understand the fix. None of the functions you patched are in the trace. > > Also, looking at IPv4 GRE code, while GRE device has dev->addr_len set > > to 4, dev->type is set to ARPHRD_IPGRE. > > I had the same reaction ... you can not claim to be an ethernet device > and have a hw address that is not 6 bytes.
This has been discussed a number of times.... TUNSETLINK can do that. (I have not checked what the repro does )