em0, VLAN and bpf(?) trouble w/RELENG_5

[Robert Watson]

On Tue, 9 Nov 2004, Mike Tancsa wrote:

> At 02:13 PM 08/11/2004, Lenar D. Tukhvatullin wrote:
> >I have similar problem (but with "bge" interface).
> >See PR: http://www.freebsd.org/cgi/query-pr.cgi?pr=72933
> >Can you recompile and test kernel with my patch?
> 
> Hi,

So I did a little local experimentation; I didn't run into the precise
problem you saw, instead getting ENOBUFS on sending.  I think compiled
"device vlan" into the kernel to make debugging easier, and the problem
magically vanished.  I'm going to keep trying to reproduce it, but for
grins, could you tell me if you're running with vlan support compiled in
or loaded, and if loaded, try compiling it in?

Robert N M Watson             FreeBSD Core Team, TrustedBSD Projects
robert at fledge.watson.org      Principal Research Scientist, McAfee Research