* Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> wrote: > > This might also be something we do want to give a kernel command line > > option for. As in "bios=allow-annoying-pmu-thing" or whatever. > > I had such a patch, Ingo argued against it and we decided not to do it, > but we could still. Basically for many kernel releases we ignored the BIOS corrupting the PMU - so one could fairly argue that this patch fixes a perf functionality regression for Eric. We'll still warn in the syslog about the BIOS so there's an indication that something is going on. Linus, which variant is the most efficient one in your opinion? I'm leaning slightly in favor of this patch in perf/urgent: it restores Eric's system to the before-BIOS-corruption-detection state, but also warns about the BIOS craziness. Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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