Posted Dec 15, 2005 18:59 UTC (Thu) by jzbiciak
(✭ supporter ✭
In reply to: SMP alternatives
Parent article: SMP alternatives
To enable hotplug SMP -> UP -> SMP, you'd definitely need to retain spinlocks, or at least put a lightweight "take lock" instruction there as opposed to the full spin. Fully NOPping spinlocks out would be a disaster, as you note.
Elsewhere, though, you could nuke/replace LOCK prefixes as needed.
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