Re: b43 : under high load, ack are lost

[Michael Buesch <mb@bu3sch.de>]

On Sunday 24 May 2009 23:42:02 matthieu castet wrote:
> Michael Buesch wrote:
> > On Wednesday 20 May 2009 23:09:47 matthieu castet wrote:
> >> I see also some period were the AP seem to drop all packet.
> >> I am wondering if it can be due to slow recalibration.
> >> Do you now how much take calibration were mac is down ?
> > 
> > I think you should try without QoS.
> > Try specifying the qos=0 module parameter to b43.
> > If that does not work, additionally apply the following patch.
> > I think there are some problems with QoS and I think somebody reported some bugs
> > some time ago. I think they are still not addressed.
> Thank you for your help.
> 
> First I used a ipw2200 for monitoring traffic, but it seems it doesn't 
> not capture all packets. That what explain the strange pattern I saw 
> before (missing ack or 2 following ack).

An ipw2200 is absolutely not usable in monitor mode.
You should dispose of it properly ;)

> Disabling pwork doesn't help, but some stuff is still done with 
> b43_phy_txpower_check on tx path.

Ok, this was just to falsify your "broken by calibration" theory.

-- 
Greetings, Michael.