Re: 64-bit DMA problems with BCM4312 using b43

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On Fri, Nov 13, 2009 at 11:21:18AM -0600, Larry Finger wrote:

> I do not know enough about either the ACPI or DMA code to begin debugging in
> either of those regions. Any suggestions on debugging strategies, or links to
> similar problems would be appreciated.

Could the hardware be highly sensitive to DMA latencies? Take a look at 
the pm_qos code in ipw2100.

-- 
Matthew Garrett | mjg59@xxxxxxxxxxxxx
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