Messages in this thread | | | From | Nick Piggin <> | Subject | Re: [PATCH UPDATE] x86: ignore spurious faults | Date | Fri, 25 Jan 2008 19:38:38 +1100 |
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On Friday 25 January 2008 19:15, Jan Beulich wrote: > Actually, another thought: permitting (and handling) spurious faults for > kernel mappings conflicts with NMI handling, i.e. great care would be > needed to ensure the NMI path cannot touch any such mapping. So > even the present Xen/Linux Dom0 implementation may have some > (perhaps unlikely) problems here, and it would get worse if we added > e.g. a virtual watchdog NMI (something I am considering, which would > then extend the problem to DomU-s).
Can you explain how they conflict?
Thanks, Nick
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