[ath9k-devel] Disconnect problem (DMA failed to stop in 10 ms)

[Kunal Gangakhedkar <kunal.gangakhedkar@gmail.com>]

On Wednesday 19 Aug 2009 2:34:50 am Pavel Roskin wrote:
> On Tue, 2009-08-18 at 23:46 +0530, Kunal Gangakhedkar wrote:
> > > Note that Michael noticed the performance degradation.  That's another
> > > target for bisection, whether it's related or not.
> >
> > Any way we can help debug this issue?
> > It gets really annoying when the driver goes berserk in the middle of a
> > big file transfer - even on LAN. :(
>
> If an older driver didn't have that problem, you can use the git bisect
> command to find which change introduced the slowdown, provided that you
> can detect it reliably.

Unfortunately, this is the only version I have tried.

I decided to buy this laptop only after looking that the h/w is mostly 
supported in linux kernel >= 2.6.29 - which is where the ath9k got support for 
9285, IIRC. After installing base kubuntu jaunty on it, I cloned the ubuntu-
karmic git tree which is based on >= 2.6.30 so that I'd get both the ath9k for 
9285 as well as radeonhd driver for the ATi Radeon HD 4650 that the laptop 
comes with.

So, I don't know whether support for 9285 was working in earlier versions at 
all. :(

If you can provide me with the starting pointers, I'll try to dig deeper.

Thanks,
-- 
Kunal