ath9k_htc: "No free RX buffer" in monitor mode

ath9k_htc: "No free RX buffer" in monitor mode

[Kalle Valo]

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

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

[Mohammed Shafi]

Hi Kalle,

On Fri, Sep 16, 2011 at 9:28 PM, Kalle Valo <kvalo@qca.qualcomm.com> 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
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-- 
shafi

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

[Kalle Valo]

Hi Shafi,

On 09/16/2011 07:09 PM, Mohammed Shafi wrote:
> On Fri, Sep 16, 2011 at 9:28 PM, Kalle Valo <kvalo@qca.qualcomm.com> 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

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

[Daniel Smith]

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

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

[Mohammed Shafi]

On Fri, Sep 16, 2011 at 11:18 PM, Kalle Valo <kvalo@qca.qualcomm.com> wrote:
> Hi Shafi,
>
> On 09/16/2011 07:09 PM, Mohammed Shafi wrote:
>> On Fri, Sep 16, 2011 at 9:28 PM, Kalle Valo <kvalo@qca.qualcomm.com> 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