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[Xen-bugs] [Bug 373] DMA assertion failing when DMA crosses page boundar

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Subject: [Xen-bugs] [Bug 373] DMA assertion failing when DMA crosses page boundary
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Date: Sun, 30 Oct 2005 09:50:23 +0000
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------- Additional Comments From mulix@xxxxxxxxx  2005-10-30 09:50 -------
[follow-up from Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

Is the network interface set up to use jumbo frames? Otherwise I
wouldn't expect alloc_skb() to allocate a data area that straddles a
page boundary, since the allocation will come from one of the
sub-page-sized power-of-two kmem caches.
If the problem is jumbo frames, we might need to add a hook to
alloc_skb(). Using swiotlb will suck hugely.
 -- Keir

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