2011-09-16 15:59:01

by Kalle Valo

Subject: ath9k_htc: "No free RX buffer" in monitor mode

Hi,

I was testing monitor mode with ath9k_htc and my laptop got slower. Then
I noticed this:

[ 9246.606150] ath: No free RX buffer
[ 9246.606156] ath: No free RX buffer
[ 9246.606582] ath: No free RX buffer
[ 9246.606590] ath: No free RX buffer

And I saw it quite a lot:

$ grep "ath: No free" /var/log/syslog | wc -l
870950

Kalle

2011-09-17 09:55:07

by Daniel Smith

Subject: Re: ath9k_htc: "No free RX buffer" in monitor mode

What compat-wireless version are you running? I use some ath9k_htc
devices at home and would be glad to help do some debugging.

Daniel

2011-09-16 16:09:20

by Mohammed Shafi

Subject: Re: ath9k_htc: "No free RX buffer" in monitor mode

Hi Kalle,

On Fri, Sep 16, 2011 at 9:28 PM, Kalle Valo <[email protected]> wrote:
> Hi,
>
> I was testing monitor mode with ath9k_htc and my laptop got slower. Then
> I noticed this:
>
> [ 9246.606150] ath: No free RX buffer
> [ 9246.606156] ath: No free RX buffer
> [ 9246.606582] ath: No free RX buffer
> [ 9246.606590] ath: No free RX buffer
>
> And I saw it quite a lot:

we saw this some time back in AP mode occasionally and it never came
up for as in monitor mode. we need to fix this.
i will try to fix this.

>
> $ grep "ath: No free" /var/log/syslog | wc -l
> 870950
>
> Kalle
> --
> To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
> the body of a message to [email protected]
> More majordomo info at ?http://vger.kernel.org/majordomo-info.html
>



--
shafi

2011-09-19 05:39:24

by Mohammed Shafi

Subject: Re: ath9k_htc: "No free RX buffer" in monitor mode

On Fri, Sep 16, 2011 at 11:18 PM, Kalle Valo <[email protected]> wrote:
> Hi Shafi,
>
> On 09/16/2011 07:09 PM, Mohammed Shafi wrote:
>> On Fri, Sep 16, 2011 at 9:28 PM, Kalle Valo <[email protected]> wrote:
>>> Hi,
>>>
>>> I was testing monitor mode with ath9k_htc and my laptop got slower. Then
>>> I noticed this:
>>>
>>> [ 9246.606150] ath: No free RX buffer
>>> [ 9246.606156] ath: No free RX buffer
>>> [ 9246.606582] ath: No free RX buffer
>>> [ 9246.606590] ath: No free RX buffer
>>>
>>> And I saw it quite a lot:
>>
>> we saw this some time back in AP mode occasionally and it never came
>> up for as in monitor mode. we need to fix this.
>> i will try to fix this.
>
> Thanks! I will run more tests with monitor mode next week and will let
> you know if I see it again.

Kalle thanks, now I could easily get this thing in monitor mode itself
in a busy channel (6, HT20).
will fix this soon.

issue can be found with latest compat-wireless/wireless-testing

>
> Kalle
>



--
shafi

2011-09-16 17:48:53

by Kalle Valo

Subject: Re: ath9k_htc: "No free RX buffer" in monitor mode

Hi Shafi,

On 09/16/2011 07:09 PM, Mohammed Shafi wrote:
> On Fri, Sep 16, 2011 at 9:28 PM, Kalle Valo <[email protected]> wrote:
>> Hi,
>>
>> I was testing monitor mode with ath9k_htc and my laptop got slower. Then
>> I noticed this:
>>
>> [ 9246.606150] ath: No free RX buffer
>> [ 9246.606156] ath: No free RX buffer
>> [ 9246.606582] ath: No free RX buffer
>> [ 9246.606590] ath: No free RX buffer
>>
>> And I saw it quite a lot:
>
> we saw this some time back in AP mode occasionally and it never came
> up for as in monitor mode. we need to fix this.
> i will try to fix this.

Thanks! I will run more tests with monitor mode next week and will let
you know if I see it again.

Kalle