ACPI processor module with Atom N270 causes DMA errors

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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


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