kern/141646: [em] em(4) + lagg(4) + vlan(4) generates ISL-tagged frames instead of 802.1q-tagged frames

[Ermal Luçi]

On Fri, Jan 29, 2010 at 11:47 PM, Jack Vogel <jfvogel at gmail.com> wrote:

> What's with the encrypted messages entered in this bug suddenly?
>
> An important update - I have root caused this. Turns out its kinda
> interesting.
> The reason there is a problem is due to the stacked pseudo devices, since
> the vlan device is on lagg, and not directly on em, the em driver is not
> getting
> the "event" of the vlan attachment, and thus the vlan hw filter routine is
> never
> run, that routine sets a CRITICAL bit in the control register which
> differentiates
> between ISL and 802 tags... and thus our failure :(
>
> The question now is what to do about this, I am thinking about this now....
>
>
Anybody interested can please try the patch at this location
http://tinyurl.com/yk7qbtb.
It is against 8-STABLE though should apply even to 8-RELEASE.

Regards,
-- 
Ermal