Re: WARNING at mac80211_ieee80211_rx

[Jeffrey Baker <jwbaker@gmail.com>]

On Wed, Dec 9, 2009 at 9:18 AM, Luis R. Rodriguez <mcgrof@gmail.com> wrote:
> On Tue, Dec 8, 2009 at 10:03 PM, Jeffrey Baker <jwbaker@gmail.com> wrote:
>> My access point with an AR9220 stopped passing traffic,
>
> Jeffrey, thanks for your report, can you be a little more verbose here
> and elaborate as to what you mean by this? Do you mean that you stop
> hostapd or that it hostapd is still running and that somehow you
> notice it stops sending data between its associated STAs?

Yes, hostapd was still running, however stations were unable to pass
traffic.  Actually the AP also stopped sending beacons I think,
because the AP no longer appeared in scans.  Restarting hostapd had no
effect.  I rebooted the machine.

>
>> and these were
>> seen in dmesg.  I am using compat-wireless 2009-11-06.
>>
>> also at pastebin: http://pastebin.com/m527862e9
>>
>> [505869.263259] ------------[ cut here ]-----------             -
>> [505869.269520] WARNING: at
>> /root/compat-wireless-2009-11-06/net/mac80211/rx.c:2486
>
> This would be from:
>
>        /*
>         * The same happens when we're not even started,
>         * but that's worth a warning.
>         */
>        if (WARN_ON(!local->started))
>                goto drop
>
> So somehow the RX tasklet kicked in and ath9k RX engine was still running.