To answer my own question...

[Javier Cardona]

Hi Stevie,

On Tue, Aug 4, 2009 at 10:23 PM, Steve Glass<stevie.glass at gmail.com> wrote:
> Well, one of them anyway. I've found a posting on the linux-wireless list
> where MAC80211_MESH gets flagged as disabled. It appears the problem is mesh
> path management and sleeping in atomic contexts and the wireless developers
> decided this was so bad that the driver needed disabling. I wonder if Javier
> has already got patches done for this?

We are working on this at the moment.  There were other more pressing
mesh regressions that crept in the wireless-testing branch, and we've
focused on those first.  But expect a set of mesh patches next week
addressing the sleeping while atomic.

Javier