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Date: Wed, 19 Jan 2011 14:23:30 +0300
From: Alexander Zagrebin <alex@zagrebin.ru>
To: Bernhard Schmidt <bschmidt@freebsd.org>
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Cc: freebsd-net@freebsd.org
Subject: Re: if_run and wlan_amrr: kernel panics on 8.2-PRERELEASE amd64
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X-List-Received-Date: Wed, 19 Jan 2011 11:23:34 -0000

Hi!

On 19.01.2011 09:37:12 +0100, Bernhard Schmidt wrote:

> > Case 2: wlan_amrr.ko loaded manually _after_ if_run.ko but before
> > creation of the wlan interface
> > 
> >   stable/8:  panic on rate control
> >   rev217511: no panic, but rate control doesn't work; tx rate is
> > fixed on 1 Mbit/s
> 
> That sounds rather weird to me, I can't imagine how the module loading 
> order should make any difference. Well, at least, before creating the 
> VAP, because that is the point where that stuff gets initialized/used.

It seems you're right. I couldn't reproduce it again. 
May be I have missed anything. Sorry...

> Do you have anything configured in rc.conf maybe? That would create the 
> VAP right after loading if_run.ko even before you are able to load 
> wlan_amrr.ko.

Yes, I have wlans_run0="wlan0" and create_args_wlan0=... in the rc.conf,
but while testing I've used `ifconfig wlan0 destroy` after `kldload if_run`.
May be it was mistyping...
Also I've noticed that messages like
"ieee80211_load_module: load the wlan_amrr module by hand for now." has
disappeared from the log. Is it normal?

So there is the one issue only: the panic if runfw.ko and wlan_amrr.ko
both loaded via loader.conf.
Have you any ideas?

Will be rev. 217511 MFC'd on the 20 january?

-- 
Alexander Zagrebin