WLAN "SBE error": any news?

[Peter Mattern]

Hello.

Running mainline kernel from Arch Linux ARM on a Cubietruck I have to
say the so called SBE error [0] makes the on-chip WLAN interface unusable.

My findings strongly suggest there's some kind of "load threshold": if
only few data is transferred the link remains stable for hours. But the
problem can reproducibly be triggered by larger amounts of data. If e.
g. some large file gets downloaded, the error will always arise once the
download has been going on for some seconds.
That threshold seems to be slightly higher in 802.11n than in 802.11g
mode. On a side note APs operating in 5GHz band can't even seem to be
detected.
But that's all I could figure out.

So I was wondering whether there's any news about this problem or even a
workaround. Obviously I'd be willing to perform further tests but needed
some advice on how to do this.

Regards,

Peter Mattern

[0] https://groups.google.com/d/msg/linux-sunxi/NngIhT-ELVc/Q2pt3UdrE-sJ

[Peter Mattern]

Am 03.03.2015 um 15:31 schrieb Rodrigo Pereira:

>
> I don't know if it is your problem, but maybe it helps:
>
> http://linux-sunxi.org/Cubietruck/AP6210
>

Module ap6210 is a modified version of module bcmdhd, which is part of
linux-sunxi and Android kernel, to address some problems on Cubietruck.
To my knowledge it can't be used with mainline kernel.

[Rodrigo Pereira]

Em domingo, 2 de novembro de 2014 15:38:55 UTC-2, Peter Mattern escreveu:

Hello.

Running mainline kernel from Arch Linux ARM on a Cubietruck I have to
say the so called SBE error [0] makes the on-chip WLAN interface unusable.

My findings strongly suggest there's some kind of "load threshold": if
only few data is transferred the link remains stable for hours. But the
problem can reproducibly be triggered by larger amounts of data. If e.
g. some large file gets downloaded, the error will always arise once the
download has been going on for some seconds.
That threshold seems to be slightly higher in 802.11n than in 802.11g
mode. On a side note APs operating in 5GHz band can't even seem to be
detected.
But that's all I could figure out.

I don't know if it is your problem, but maybe it helps:

http://linux-sunxi.org/Cubietruck/AP6210
 

So I was wondering whether there's any news about this problem or even a