PIO mode (was: Re: Issues with 14e4:4315 on "lenovo ideapad s9" - works only after wl)

[Paul Fertser]

On Sun, Oct 10, 2010 at 06:50:06PM -0700, Larry Finger wrote:
> On Sun, Oct 10, 2010 at 10:03 AM, Paul Fertser <[1]fercerpav at gmail.com> wrote:
>   On Sun, Oct 10, 2010 at 08:39:04AM -0700, Larry Finger wrote:
>   > On my HP Mini 110 netbook, those fixes got rid of the DMA errors. Will
>   > they allow your S9 to cold boot b43?
> 
>   I wonder if those DMA errors are just a sign of some other problem because
>   the driver automatically switches to PIO but it doesn't help.
>  
> On most machines, the automatic switch to PIO does not work. You probably need
> to load the driver with PIO=1.

The PIO mode doesn't work for me at all. The logs after automatic switching
are identical to those of coldbooting b43 with pio=1. Same with loading it
after wl. The dmesg is attached (that's with plain wpa_supplicant, no NM
interfering). Reloading b43 without pio=1 makes it work (to clarify:
coldboot -> b43 pio=1 -> b43 -- works; coldboot -> b43 -> Fatal error ->
rmmod b43 -> modprobe b43 fails immediately).

-- 
Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software!
mailto:fercerpav at gmail.com
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