Regression with iwn drivers (4965BGN) in 8.2-PRERELEASE ?

[Bernhard Schmidt]

On Thursday, January 06, 2011 11:23:44 Olivier Cochard-Labbé wrote:
> 2011/1/6 Bernhard Schmidt <bschmidt at freebsd.org>:
> > What do you mean with 'unusable' exactly? Lots of packet loss, or just
> > slow transfer rates? 'wlandebug +rate' might shed some light on this
> > one.
> 
> Hi, it's just very slow transfer rates.
> I didn't know wlandebug, thanks for the tips.
> Here are the result just after a boot, during pinging my gateway (few
> traffic):
> 
> Jan  6 11:02:25 d630 kernel: wlan0: [3a:41:c4:e3:1e:18] AMRR
> increasing rate 48 (txcnt=11 retrycnt=0)
> Jan  6 11:02:36 d630 kernel: wlan0: [3a:41:c4:e3:1e:18] AMRR
> increasing rate 72 (txcnt=11 retrycnt=0)
> Jan  6 11:03:02 d630 kernel: wlan0: [3a:41:c4:e3:1e:18] AMRR
> increasing rate 96 (txcnt=11 retrycnt=0)
> 
> Now, I start xorg and a start a browser:
> 
> Jan  6 11:04:04 d630 kernel: wlan0: [3a:41:c4:e3:1e:18] AMRR
> decreasing rate 72 (txcnt=11 retrycnt=10)
> [..]
> Jan  6 11:11:09 d630 kernel: wlan0: [3a:41:c4:e3:1e:18] AMRR
> decreasing rate 4 (txcnt=11 retrycnt=4)
> 
> The rate decrease too much for using a browser (but I can still ping
> my gateway)…

That looks indeed quite weird. I'll have a look into that.

Can you post 'ifconfig wlan0 list scan' output, just to see how staffed the 
band is?

-- 
Bernhard