tst-ttyname failure

[Florian Weimer]

On 11/23/2017 01:22 PM, Adhemerval Zanella wrote:
> I noted, at least on my environment, it requires running as a more privileged user
> to avoid the above failure. Is it the expected behaviour? Should we move it to
> xcheck and add the a possible requirement [1]?

There might be a magic incantation which makes this work with kernel 4.4 
in this particular configuration.  Can you use kernel tracing to figure 
out where the EINVAL error comes from?

Thanks,
Florian