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IBM Calgary IOMMU and ACPI NUMA With Intel Core i7

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https://bbs.archlinux.org – I been recompiling my kernel a lot to include support for my RevoDrive 3 and I've come across these two options which I'm not sure whether I should leave them enabled or disable them. In the help box for both of these options it says that it's recommended to keep them on if you have a Core i7, which I do. Yet, in dmesg it says that it can't detect calgary or any NUMA modes. Is this something that should really be enabled or is it ok to disable it? They don't show up with the stock kernel and I haven't had any problems with disabling them. [bran@chakra ~]$ dmesg|gr (HowTos)