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

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Date:	Tue, 15 Jul 2008 08:14:40 +0200
From:	Vladimir Koutny <vlado@...k.ksp.sk>
To:	Dave Young <hidave.darkstar@...il.com>
CC:	Mattias Nissler <mattias.nissler@....de>,
	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

Dave Young wrote:
> 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:


This has been solved already:

http://git.kernel.org/?p=linux/kernel/git/linville/wireless-testing.git;a=commitdiff;h=def5e9a210235d690e79ae660972792860568421

Vlado

>>
>> printk(KERN_DEBUG "supported rates bitmask: %08x\n",
>>        sta->supp_rates[sband->band]);
> 
> Yes, as you said, I get:
> 
> supported rates bitmask: 00000000
> 
>> Mattias
>>
>>
> 
> 
> 



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