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Date:      Sat, 20 May 2006 16:09:22 +0200
From:      Sam Leffler <sam@errno.com>
To:        Ross Finlayson <finlayson@live555.com>
Cc:        freebsd-mobile@freebsd.org
Subject:   Re: More 'resource' problems with "ath0"
Message-ID:  <446F2312.3000708@errno.com>
In-Reply-To: <7.0.1.0.1.20060519133359.02083d70@live555.com>
References:  <7.0.1.0.1.20060517080119.01e00df8@live555.com>	<446B44B0.5030908@errno.com>	<7.0.1.0.1.20060517125415.01e0f568@live555.com>	<446B8F14.80502@errno.com>	<7.0.1.0.1.20060517153640.01e0f568@live555.com>	<446C0C22.4090700@errno.com>	<7.0.1.0.1.20060517230855.01ddd570@live555.com>	<446C23C0.8030501@errno.com> <7.0.1.0.1.20060519133359.02083d70@live555.com>

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Ross Finlayson wrote:
> 
>>> So far I have not seen the problem recur after I switched to using 11g.
> 
> Unfortunately the problem arose again today, even when running 11g:
> 
> May 19 13:24:40 ns named[398]: client 66.80.0.7#1025: error sending
> response: not enough free resources
> May 19 13:24:40 ns named[398]: client 66.80.0.7#1025: error sending
> response: not enough free resources
> 
>> So your clients are operating in ps mode
> 
> Yes, some of the clients of one of the access points (the one that's
> running at the coffee shop, which is where the problem arose again
> today) will be operating in power-save mode.  (Because these clients are
> random 'walk in off the street' types, it's not possible in general to
> prevent them from using power-save mode.)
> 
>>  and this may be the same issue seen by one other person.  I'm working
>> on it but am traveling right now so nothing will happen for a while
>> (and it's also hard to reproduce).
> 
> Is there any diagnostic tool that I could run - when I notice the
> problem occurring - that might help you in tracking down and solving
> this problem?

Not really.  I have an idea what's going.

> 
> Also, do you think that Joao's suggestion - copied below - is worth trying?

No.  The problem is in the driver (probably in the handling of packets
buffered for clients operating in ps mode).

	Sam


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