Typically there are only two clients at a time, sometimes three.

We're using backports-3.12.8-1, which doesn't appear to have the
patch. I've tried compiling both backports-3.14-1 and 3.15-rc1, but
both fail for various reasons. Hopefully someone on the backports
mailing list can help with that portion.

On Mon, Apr 28, 2014 at 11:31 PM, Oleksij Rempel <li...@rempel-privat.de> wrote:
> Am 29.04.2014 08:19, schrieb Aaron Hamilton:
>> On Mon, Apr 28, 2014 at 3:03 PM, Oleksij Rempel <li...@rempel-privat.de> 
>> wrote:
>>>
>>> Am 28.04.2014 22:43, schrieb Aaron Hamilton:
>>>> Has anyone had success running an ath9k_htc module in AP mode for any 
>>>> length of time? If so, what versions of OS/hostapd/ath are you using?  
>>>> Would you mind sharing your magic config files for your kernel, backports, 
>>>> hostapd, etc?
>>>
>>> Usually i do benchmark tests and some hours of load tests. Some devices
>>> fail on high load. Yesterday i was able to narrow down one of firmware
>>> crashes, but with current fw and kernel, it will recover connection in
>>> some seconds. So this problem is not nice, but not critical.
>>>
>>> If you are able to grub firmware log from uart port on the chip, or get
>>> panic report from kernel, if you have patched kernel, then it will be
>>> good start.
>>
>> Unfortunately our modules don't have a UART port accessible. When
>> clients are no longer able to connect, I can't seem to find anything
>> unusual in dmesg. The only thing of interest are log entries for "IEEE
>> 802.11: deauthenticated due to local deauth request". Although
>> sometimes there's no indicating or activity at all.
>
> How many clients do you have? we can't handle more then 8. There is no
> enough RAM for more.
>
>> I'm deploying several units with debugfs enabled (wasn't there
>> previously). Is there anything I should be looking for there?
>
> No. Check if you have "ath9k_htc: catch fw panic pattern" patch.
>
>>>
>>> In any case most interesting changes are from this year, so don't use
>>> old backports.
>>>
>>> If you have firmware crashes, i would suggest you todays FW source:
>>> https://github.com/olerem/open-ath9k-htc-firmware/commits/io_clean
>>>
>>> the difference to other branches is that panic report should show
>>> address of function which made ioread/write request
>>>
>>>> I'm desperate for stability as this problem has been ongoing for quite 
>>>> some time. We are using ar9710 chips in vehicle hotspots and the best 
>>>> we've been able to achieve is a few days of connectivity. Usually within 
>>>> hours all wifi clients loose their connection which can only be corrected 
>>>> with a hostapd restart (or power cycle).
>>>
>>> Are you sure you are using ar9710 with ath9k-htc?
>>>
>>
>> Sorry, that's a typo. We're using AR9271 Rev 1 chipsets. Here's an
>> image: http://www.zcom.com.tw/program1/big_pic/ZCN-722M.jpg
>>
>> I also neglected to mention that I've compiled the kernel without QoS
>> support as that seems to make the problem worse.
>>
>>>> Here's our setup:
>>>> - host: at91 ARM processor on 2.6.39.4 kernel
>>>> - runtime power management and LED support removed from kernel (otherwise 
>>>> entire device reboots when load is put on wifi interface)
>>>> - hostapd-2.0
>>>> - latest ath9k_htc firmware compiled from source (indicates v1.4 on boot)
>>>>
>>>> At this point I'm willing to try just about anything to get at least a 
>>>> week or more of ongoing stability.
>>>>
>>>> Thanks in advance!
>>>> _______________________________________________
>>>> ath9k-devel mailing list
>>>> ath9k-devel@lists.ath9k.org
>>>> https://lists.ath9k.org/mailman/listinfo/ath9k-devel
>>>>
>>>
>>>
>>> --
>>> Regards,
>>> Oleksij
>>>
>
>
> --
> Regards,
> Oleksij
>
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