Messages in this thread | | | Date | Thu, 19 Jul 2007 14:08:39 -0700 | From | Jeremy Fitzhardinge <> | Subject | Re: [patches] new text patching for review |
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Andi Kleen wrote: > Either not use any pvops or make sure all the pvops patching is atomic > on the local CPU. >
Erk, not really keen on that. Sounds complicated, unless there's a nice general algorithm.
> Ok you can avoid MCEs by not enabling them until after you patch (which I think > is the case currently), but it's more difficult with NMIs. > > The plain NMI handler is probably auditable. > Or set a flag that makes the NMI handler just return during patching? >
I think that's probably the simplest, if nobody will miss it.
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