Re: [PATCH 11/12] swiotlb: merge swiotlb-xen initialization into swiotlb

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On Wed, Mar 02, 2022 at 08:15:03AM -0500, Boris Ostrovsky wrote:
> Not for me, I fail to boot with
>
> [   52.202000] bnxt_en 0000:31:00.0: swiotlb buffer is full (sz: 256 bytes), total 0 (slots), used 0 (slots)
>
> (this is iscsi root so I need the NIC).
>
>
> I bisected it to "x86: remove the IOMMU table infrastructure" but haven't actually looked at the code yet.

That looks like the swiotlb buffer did not get initialized at all, but I
can't really explain why.

Can you stick in a printk and see if xen_swiotlb_init_early gets called
at all?



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