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Bug#606994: DMA error with b43 on HP Mini 1115NR under Debian Testing (Squeeze)



On Tue, 2010-12-14 at 09:47 +0300, Jonathon Anderson wrote:
> On Tue, Dec 14, 2010 at 4:51 AM, Ben Hutchings <ben@decadent.org.uk> wrote:
> > A log with timestamps would be more helpful.
> 
> I've attached a copy of log/messages that contains the error.  It's a
> different instance, but a reoccurrence of the same thing.
> 
> You'll probably want to grep it for "b43", but I left the log intact
> in case any of the surrounding context would be useful.

Thank you.

> Note that, though I had said this for the previous log:
> 
> >>The preceding log was generated by 2.6.36.
> >> 2.6.32 generated largely similar logs, except that it recommended PIO
> >> mode, rather than purporting to switch to it.
[...]

Debian's package of Linux 2.6.32 includes all the later fixes that
implement automatic switching to PIO mode.  It is only missing the
correction to that message.

I don't if it will help, but you can force b43 to use PIO mode from the
start by running:

    rmmod b43
    modprobe b43 pio=1

If that helps, you can make this configuration persistent by running:

    echo >/etc/modprobe.d/b43.conf 'options b43 pio=1'

Ben.

-- 
Ben Hutchings
Once a job is fouled up, anything done to improve it makes it worse.

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