[ath9k-devel] ar9281

[Christoph Thiel <ct@kki.org>]

On Tue, Dec 02, 2008 at 03:22:22PM -0500, John W. Linville wrote:
> On Mon, Dec 01, 2008 at 09:25:33AM -0800, Luis R. Rodriguez wrote:
> > On Mon, Dec 1, 2008 at 9:13 AM, Pat O'Neil <Pat.ONeil@fedex.com> wrote:
> > > Greetings all,
> > >
> > > I've got a recent toshiba qosmio laptop, 64bit that has an ar9281
> > > chipset that was "almost" working under F9, as after downloading the
> > > wireless git and compiling I could get it to come up and associate, but
> > > the performance was extremely slow, with ping times of 10's of seconds,
> > > etc.  I also sometimes got the aforementioned "No ProbeResp from current
> > > AP ... - assume out of range" error.
> > >
> > > Since then I've loaded Fedora 10, and have hit a new snag with its
> > > bundled version of ath9k, as in the dmesg log I see the following:
> > >
> > > ...snip...
> > >
> > > ath9k: 0.1
> > > ath_pci: software IOTLB in use, aborting.
> > >
> > > ...snip...
> > 
> > Fedora 10 kernel is broken as a workaround to a kernel bug in ath9k
> > they decided to disable ath9k when the swiotbl is used due to a bug
> > that *we actually did fix*. They should fix their kernel. They may
> > have an updated kernel you may want to check.
> > 
> > http://bugzilla.kernel.org/show_bug.cgi?id=11811
> 
> Not quite that simple.  Those patches as written don't apply to 2.6.27,
> and F10 won't be on 2.6.28 for quite some time (since 2.6.28 has yet
> to be released).
> 
> Now, if you know of 2.6.27 versions of those patches... :-)

Check out
http://www.kernel.org/pub/linux/kernel/people/mcgrof/patches/ath9k/2008-11-22/27-IOMMU-01/

I hope we'll get them included in one of the next -stable kernels.



Best,
Christoph