linux-kernel - Re: mac80211 : WARN at net/mac80211/rate.h:153

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Date:	Tue, 15 Jul 2008 13:51:56 +0800
From:	"Dave Young" <hidave.darkstar@...il.com>
To:	"Mattias Nissler" <mattias.nissler@....de>
Cc:	"Michael Buesch" <mb@...sch.de>, linux-wireless@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"Stefano Brivio" <stefano.brivio@...imi.it>
Subject: Re: mac80211 : WARN at net/mac80211/rate.h:153

On Tue, Jul 15, 2008 at 1:17 AM, Mattias Nissler <mattias.nissler@....de> wrote:
> On Mon, 2008-07-14 at 16:14 +0200, Michael Buesch wrote:
>> CCing PID guys.
>> I've seen several people hitting this. What's the meaning of this warning?
>
> It basically means the rate control cannot find any rate in
> local->hw.wiphy->bands[local->hw.conf.channel->band] that is supported
> by the sta in question. Normally this should not happen. I guess the
> reason is that the supported rates bits in the sta info are all zero,
> which would probably be a bug. I haven't seen this here, but I don't use
> the IBSS code either. To further investigate this, you could the
> following just before the WARN_ON:
>
> printk(KERN_DEBUG "supported rates bitmask: %08x\n",
>        sta->supp_rates[sband->band]);

Yes, as you said, I get:

supported rates bitmask: 00000000

>
> Mattias
>
>



-- 
Regards
dave
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