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).
Jan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
