Messages in this thread | | | Date | Thu, 17 Jun 2010 10:38:00 +0100 | From | Jeremy Fitzhardinge <> | Subject | Re: [PATCH 1/2] x86: ioremap: fix wrong physical address handling |
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On 06/17/2010 10:35 AM, Jeremy Fitzhardinge wrote: > I guess it would be possible to special-case ioremap to allow the > creation of such mappings, but I don't know what kind of system-wide > fallout would happen as a result. The consequences of something trying > to extract a pfn from one of those ptes would be >
...very bad, as it would result in truncated pfns and likely cause some kind of corruption.
(oops, sent too early)
J
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