[ath9k-devel] AR9485 on acer one d257 disconnects and hangs very often (ath: Failed to stop TX DMA!)

[Paolo <deepwave@gmail.com>]

-------- Messaggio originale --------
Oggetto: Re: [ath9k-devel] AR9485 on acer one d257 disconnects and hangs
very often (ath: Failed to stop TX DMA!)
Mittente: Mohammed Shafi <shafi.wireless@gmail.com>
A: Paolo <deepwave@gmail.com>
CC: ath9k-devel at lists.ath9k.org
Data: Tue Dec 27 2011 06:10:27 GMT+0100 (CET)

> please provide as much  information about your usage of the device or
> testing

First of all, thank you for the quick answer.

I had that problem in many different situations: during surfing 
Internet, after I left the PC in pause for a while, during building 
kernel, close to the router, far from the router.
In short in every situation one can use a PC.

Which other details may I provide to help you?

> can you please check whether you can see the issue in
> http://linuxwireless.org/en/users/Download#Where_to_download_bleeding_edge

These are last snapshots for kernel 2.6 or also for kernel 3.1?
Since it's complicated for me to work with three different kernels, I'd 
prefer to focus for the moment on kernel 3.1.6.

I've download and built the latest stable compat-wireless 3.2, with 
kernel 3.1.6 and I've turned off at the boot the power management (with 
"iwconfig wlan0 power off") and for the moment it seems to work, I've 
had the pc up for 2 hours without the problem.
But of course I need more tests to be sure that this can fix it.

>> ath: Chip reset failed
>> > ath: Unable to reset channel (2467 MHz), reset status -22
> not sure 2467 mhz is valid

I attached here the last dmesg after the error, in effect I find here 
just 2422 mhz.

I can see that my dmesg is pretty identical to Liao Haohui one, posted 
yesterday.

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