RE: [Xen-devel] DMA trouble with current xen-sparse

["Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>]

> Sure, took a bit of time to recompile the kernel (I didn't do 
> this for years) and it crashed as expected, here are the info:
> 
>   ptr: f160ed8e 1514
> 
> the size looks a full ethernet frame, i.e. 1500 of payload, 2 
> ethernet addresses and the 2bytes for the ethernet type, that 
> looks kosher to me but clearly it is not aligned.

This allocation isn't aligned to the next power of 2 boundary ---
usually 1514 byte allocations are 2KB aligned. 

You're not enabling some experimental option in your config that changes
the alignment of slab allocations are you?

Ian

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