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From: Chris Vine <chris@cvine.freeserve.co.uk>
To: linux-acpi@vger.kernel.org
Subject: ACPI processor module with Atom N270 causes DMA errors
Date: Sun, 25 Oct 2009 21:07:54 +0000	[thread overview]
Message-ID: <20091025210754.55abdbe6@boulder.homenet> (raw)

Hi,

I have a Levono S-12 netbook which uses an Atom N270 processor.
Loading the ACPI 'processor' module clobbers my DMA, specifically when
using the b43 driver for a Broadcom BCM4312 802.11b/g [14e4:4315] low
power phy wireless device.  The b43 driver works correctly if the
processor ACPI module is blacklisted.

This is with kernel 2.6.32-rc5, but the same occurs with earlier
pre-2.6.32 kernels.

Please let me know what further information would be helpful (for
example, the output of dmesg, lspci or lsmod, or other hardware
information).

Chris



             reply	other threads:[~2009-10-25 21:25 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-10-25 21:07 Chris Vine [this message]
2009-10-25 21:45 ` ACPI processor module with Atom N270 causes DMA errors Alexey Starikovskiy
2009-10-25 22:35   ` Rafał Miłecki
2009-10-25 22:35   ` Chris Vine

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