[6.0 beta3] problem with cvsup and wifi (iwi)

[Darren Pilgrim]

From: Patrick Lamaizière
> 
> I've got this problem only with cvsup...
> 
> Cvsup and csup don't work when i'm connected in wifi. (iwi 
> driver / Intel 2200 BG). The cvsup server resets the connection :
> 
> # cvsup
> ...
> Updating collection ports-all/cvs
> TreeList failed: Network write failure: Connection closed

There is an issue with either the iwi driver or Damien Bergamini's
firmware that result in the device crashing and/or losing the network
under heavy packet load.  I'm having the same issue here with the 2915.
I can trigger it using cvsup or SSH-forwarded X sessions.