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On Sat, 2006-02-25 at 09:28 -0500, Benjamin LaHaise wrote: > sfence has no impact > on the flushing of the write combining buffers The sfence instruction guarantees that every store that precedes it in program order is globally visible, including over the likes of the PCI bus, before any store instruction that follows the fence. <b - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||
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