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Re: [Xen-devel] [PATCH 1/9] xen: make sure swiotlb allocation isphysically contigious



Jan Beulich wrote:
As pointed out before, you must not use alloc_bootmem_low...() here,
as on large systems you may otherwise get an allocation failure (i.e. a
panic - checking the return value is pointless). The alternative is to fix
the bootmem allocator to no longer allocate from bottom up.

I was going to do that as a separate change so it can be argued on its own merits (though now that the allocation is happening in purely Xen code, that's less of an issue).

   J

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