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Re: ath9k: scanning kills unicast

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On Fri, Jan 28, 2011 at 6:49 PM, Richard Schütz <r.schtz@xxxxxxxxxxx> wrote:
> When I receive data with the highest possible speed in my 802.11g network
> and simultaneously scan for available networks (NetworkManager does this all
> the time in the background) ath9k enters a strange state: unicast data
> transfer is stalled, but broadcast is still working. This state lasts for a
> while. Then it ends after deauthentication (Reason: 6) and reauthentication.
> ATH_DEBUG_FATAL logs nothing.
>
>
> $ lspci -nn|grep Atheros
> 05:00.0 Network controller [0280]: Atheros Communications Inc. AR9285
> Wireless Network Adapter (PCI-Express) [168c:002b] (rev 01)
>
> $ dmesg|grep -i ath
> ath9k 0000:05:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
> ath9k 0000:05:00.0: setting latency timer to 64
> ath: EEPROM regdomain: 0x65
> ath: EEPROM indicates we should expect a direct regpair map
> ath: Country alpha2 being used: 00
> ath: Regpair used: 0x65
> ieee80211 phy0: Selected rate control algorithm 'ath9k_rate_control'
> Registered led device: ath9k-phy0::radio
> Registered led device: ath9k-phy0::assoc
> Registered led device: ath9k-phy0::tx
> Registered led device: ath9k-phy0::rx
> ieee80211 phy0: Atheros AR9285 Rev:2 mem=0xffffc90012260000, irq=16
>
> $ uname -r
> 2.6.37-ARCH

Yes reproducible, if you can get some useful logs(inspite of
DEBUG_FATAL) it will be highly.
At present please disable the NM and run the traffic

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