Messages in this thread | | | Date | Thu, 8 May 2008 16:32:50 +0100 | From | Alan Cox <> | Subject | Re: [PATCH] x86: introduce a new Linux defined feature flag for PAT support |
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> For old CPUs it is actually ok (after all they worked for years without > PAT), I just don't like it for new CPUs. It's a bad idea there and > in the x86 world it is a reasonable expectation that CPU features > generally work.
Agreed 100%. We should default to assuming newer processors work. That will be true in almost if not all cases anyway, and since it'll bite anyone at Intel/AMD/.. testing new CPU steppings when it is on by default any problem cases won't be leaving the labs.
Alan
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