Re: [Xen-devel] Question regarding SLAB corruption

[Keir Fraser <keir@xxxxxxxxxxxxx>]

On 9/7/07 18:11, "Lukas Hejtmanek" <xhejtman@xxxxxxxxxxx> wrote:

> Well, it looks like that __sync_single is called on the first page that has
> been allocated in the order 6 batch. So, are you saying that this is something
> incorrect?
> 
> Because >0 orders do not pass through map_single(), if I understand correctly.

By my understanding, the infiniband driver is doing an order-6 allocation,
then stuffing that multi-page region into a single element of a scatterlist.
It is then calling dma_map_sg(), which [on Xen] calls swiotlb_map_sg(),
which calls map_single() on that multi-page extent. Am I misunderstanding
something?

 -- Keir


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel