Re: [Xen-devel] SWIOTLB allocation failed

[Lukas Hejtmanek <xhejtman@xxxxxxxxxxx>]

On Wed, Nov 28, 2007 at 03:32:45AM +0000, Keir Fraser wrote:
> Have you assigned any physical devices to this domU? If not then it is not
> allowed to request contiguous multi-page allocations, and this will cause
> swiotlb initialisation to fail (and hence panic the kernel). If you do not
> assign any physical devices to the domU then there is no point in it having
> a swiotlb anyway.

I do have a physical device - Mellanox Infiniband card. 

But it's my fault, DMA fatal error is caused by ipoib (IP over Infiniband)
module that uses incorrectly dma_sync_single on areas not mapped by
dma_map_single.

-- 
Lukáš Hejtmánek

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