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SubjectRe: PROBLEM: ARM-dma-mapping-fix-for-speculative-prefetching cause OOPS
On Fri, Jul 08, 2011 at 12:38:38PM +0800, Qin Dehua wrote:
> After doing the above changes, the kernel just report BUG_ON(dir ==
> DMA_BIDIRECTIONAL):

That's really unfortunate.

The only other thing I can think which may help is to enable all the
raid5, async_tx and dmaengine debug code. And I hope you have
DMA_API_DEBUG enabled in your .config ?

--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of:


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