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Re: iwlwifi: Reason 7 periodic disconnect

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On Thu, Oct 23, 2014 at 12:53 AM, Laurențiu Nicola <lnicola@xxxxxxx> wrote:
> Nope. It seems that code doesn't get executed when my issue occurs (or
> in my five or ten minutes of uptime). I've seen
> `ieee80211_reset_ap_probe` get called by `ieee80211_rx_mgmt_probe_resp`,
> but (if I'm not wrong) not on every disconnect.
>
> And as far as I can tell, force_cam is set to true.

Can you please try with the patch attached and send the logs?
I again need MAC80211_MLME_DEBUG.

Thanks.

>
> Laurentiu
>
> On Wed, Oct 22, 2014, at 12:10, Emmanuel Grumbach wrote:
>> On Tue, Oct 21, 2014 at 10:56 PM, Laurențiu Nicola <lnicola@xxxxxxx>
>> wrote:
>> > Yep! `scb_timeout` is 60 on my router.
>> >
>> > On Tue, Oct 21, 2014, at 14:00, poma wrote:
>> >> On 21.10.2014 10:35, Felix Fietkau wrote:
>> >> > On 2014-10-21 10:23, Laurențiu Nicola wrote:
>> >> >> It's an ASUS RT-N66U running NEWD-2/K3X from r24160.
>> >> > This is a Broadcom based device, so it should behave in the same way as
>> >> > other APs/Routers running the Broadcom drivers.
>> >> > The driver should only send Reason 7 when receiving a PS-Poll, BlockAck,
>> >> > BlockAckReq or Action frame from a station that's not associated, so
>> >> > probably it has already kicked out your iwlwifi client earlier. Not sure
>> >> > why that doesn't show up in the log though.
>> >> >
>> >>
>> >> Whether this might refer to the Station Control Block Timeout value
>> >>
>> >> http://www.dd-wrt.com/wiki/index.php/Wl#scb_timeout
>> >> ...
>> >> scb_timeout
>> >>
>> >> AP only: inactivity timeout value for authenticated stas
>> >>
>>
>> Actually, mac80211 should be probing the AP every 30 seconds but a
>> beacon might abort the probe...
>> Can you try something like this:
>>
>> diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
>> index 75df184..c9db7cf 100644
>> --- a/net/mac80211/mlme.c
>> +++ b/net/mac80211/mlme.c
>> @@ -3295,7 +3295,8 @@ static void ieee80211_rx_mgmt_beacon(struct
>> ieee80211_sub_if_data *sdata,
>>         if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL) {
>>                 mlme_dbg_ratelimited(sdata,
>>                                      "cancelling AP probe due to a
>> received beacon\n");
>> -               ieee80211_reset_ap_probe(sdata);
>> +               pr_err("Not cancelling the probe to make sure the AP
>> hears us from time to time\n");
>> +               //ieee80211_reset_ap_probe(sdata);
>>         }
>>
>>         /*
>>
>>
>>
>> >>
>> >> poma
>> >>
>> >>
>> >> --
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