On Mon, Feb 09, 2009 at 11:13:38AM -0700, Alex Chiang wrote: > This is v2 of my attempt to prevent an oops while offlining CPUs. > > The change is that the patch becomes a full revert of Paul's > original patch, along with a long changelog that explains the > situation as best as I can determine. It's not 100% satisfactory > to me right now, but the testing we've done supports the patch. > > The 2nd patch in the series is mostly cosmetic, and removes a > redundant call to cpu_clear() that we no longer need(). > > Tony, if you agree with the rationale in 1/2, then this series is > a candidate for .29. > > stable team, if Tony pushes upstream for .29, then this series > should be applied to the .27 and .28 stable series. OK, I'll bite... Why not use cpu_active_map rather than cpu_online_map to select which CPU to migrate interrupts to? That way, we can delay clearing the bit in cpu_online_map and avoid the questionable scenario where irqs are being handled by a CPU that appears to be offline. Thanx, Paul -- To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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