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Re: ath5k with two NICs runing IBSS and AP mode simultaneously causes error

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On Wed, Oct 21, 2009 at 7:01 AM, Joerg Pommnitz <pommnitz@xxxxxxxxx> wrote:

> ath5k phy0: no further txbuf available, dropping packet.
> The timing makes it very likely that the hostapd on wlan1 disturbed the iperf run on wlan0. Is this a known problem? Is there something I can do to help track this down?

It is a known problem - please do try to track it down.

I think a good place to start is looking at the creation
of tx descriptors, particularly for the beacon and CAB
queues, and make sure they are properly released.  Maybe
printing out a high-water mark of the created vs available
descriptors when transmitting packets would be a useful
data point.

BTW the reason all traffic stops is that we stop the queues
but don't re-enable them in that case -- we should probably
set a timer or something to recover from that situation.

-- 
Bob Copeland %% www.bobcopeland.com
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