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

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=373





------- 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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