Re: [Xen-devel] Double mapping of iomem assertion

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 18/10/07 15:40, "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx> wrote:

> 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.

Fixed by linux-2.6.18-xen.hg changeset 265. I'll also backport for 3.1
series.

This was introduced by xen changeset 14731, back in April. So Jan is to
blame (and me, I suppose!). ;-) I expect it's in a few vendor kernels at
this point...

 -- Keir



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