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Re: [Xen-devel] Double mapping of iomem assertion
| To: | Kieran Mansley <kmansley@xxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] Double mapping of iomem assertion |
| From: | Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
| Date: | Thu, 18 Oct 2007 16:22:17 +0100 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx, Jan Beulich <jbeulich@xxxxxxxxxx> |
| Delivery-date: | Thu, 18 Oct 2007 08:23:02 -0700 |
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| In-reply-to: | <C33D2EFA.1710B%Keir.Fraser@xxxxxxxxxxxx> |
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| Thread-index: | AcgRlNvEGmQhcX2IEdyp5QAX8io7RQABc8ht |
| Thread-topic: | [Xen-devel] Double mapping of iomem assertion |
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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 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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