PIO mode

[Paul Fertser]

On Mon, Oct 18, 2010 at 02:57:48PM -0500, Larry Finger wrote:
> On 10/17/2010 11:11 PM, Paul Fertser wrote:
> > This works the same as coldbooting b43 without this parameter, i.e. on
> > wireless-testing it loads and works but i'm able to induce the fatal dma
> > error by producing constant upstream traffic. It switches to PIO mode and
> > is able to scan but fails to associate. Reloading the module produces the
> > dma error immediately, and pio still doesn't work (see dmesg in my other
> > message).
> 
> If I read this correctly, the latest wireless-testing version of b43 works from
> a coldboot, but it fails when doing heavy transmitting. How do you generate this
> upstream traffic? I'm hoping to duplicate your results on my netbook.

I have a desktop connected by wired ethernet to the wireless AP and i do

$ ssh pavelssh at 192.168.1.2 bash -c 'cat > /dev/null' < /dev/zero

from the netbook.

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