Re: Problem with new bwn driver on -CURRENT

On Thu, Mar 04, 2010 at 12:12:02AM -0500, Joe Marcus Clarke wrote:
> On Wed, 2010-03-03 at 15:14 -0800, Weongyo Jeong wrote:
> > > When it occurs again, I will get you the details and the full dmesg.  Do
> > > you want a verbose dmesg, or a standard one?
> > 
> > I think a standard one is enough.  Thank you.
> 
> Here you go.  This is on -CURRENT from about 30 minutes ago.  Thanks for
> looking into this.
> 
> http://www.marcuscom.com/downloads/salami.dmesg

Thank you for dmesg.  It looks using PIO mode is only a way to avoid
this problem.

I looked sources and problems of other Broadcom wireless driver for LP
PHY users.  They also encounters this issue and are trying to solve
this but no luck and no perfect patch until now.

Recently AFAIK wireless-test git of linux adopted a patch `gracefully
convert DMA to PIO mode' to solve it.

Additionally some guys tolds some success story when they disabled ACPI
but it looks it's not a perfect solution.

IIRC you said PIO worked for association with your AP but no further
traffic.  However I wonder that this is weird for me because paths of
sending management frames and sending data frames are same.  Could you
please recheck whether PIO mode worked?  I'll try to test PIO mode on my
environment again.

regards,
Weongyo Jeong