On Tue, 27 Nov 2007, Andrew Morton wrote: > The prefetch however might still need some work - we can indeed do > prefetch() against a not-possible CPU's memory here. And I do recall that > 4-5 years ago we did have a CPU (one of mine, iirc) which would oops when > prefetching from a bad address. I forget what the conclusion was on that > matter. > > If we do want to fix the prefetch-from-outer-space then we should be using > cpu_isset(cpu, *cpumask) here rather than cpu_possible().
Generally the prefetch things have turned out to be not that useful. How about dropping the prefetch? I kept it because it was there. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
