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SubjectRe: [PATCH 0/16] DMA-API debugging facility v2

On Thu, Feb 05, 2009 at 10:52:32PM +0000, David Woodhouse wrote:
> This adds a function to dump the DMA mappings that the debugging code is
> aware of -- either for a single device, or for _all_ devices.
> This can be useful for debugging -- sticking a call to it in the DMA
> page fault handler, for example, to see if the faulting address _should_
> be mapped or not, and hence work out whether it's IOMMU bugs we're
> seeing, or driver bugs.
> I'd also like to make it answer the question 'should address X be mapped
> for device Y', but I'll get to that next.
> Do we have a %pX format for printing dma_addr_t yet?
> Signed-off-by: David Woodhouse <>

Great. Thanks. Applied to my dma-api/debug branch.


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