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xen-devel
Re: [Xen-devel] Double mapping of iomem assertion
On 18/10/07 15:15, "Kieran Mansley" <kmansley@xxxxxxxxxxxxxx> wrote:
> It looks to me like neither _PAGE_PRESENT nor _PAGE_PSE is set. Any
> advice about why this might be and how to fix this would be gratefully
> received.
Vmalloc area pagetables are demand mapped into per-process pgdirs. So it's
invalid for vunmap_pte_range() to be relying solely on update_va_mapping().
Either it should use some other method, or at least have some other method
as a fallback.
This is easily fixed. I guess I'll audit other uses of update_va_mapping()
at the same time.
-- Keir
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