https://bugzilla.kernel.org/show_bug.cgi?id=19702 --- Comment #33 from Thomas Renninger <trenn@xxxxxxx> 2010-10-29 20:15:27 --- I wonder why Heinz has: clocksource=hpet acpi_skip_timer_override Peter's machine has an unstable TSC, that is strange, cpuflags show constant_tsc. So it seems it falls through some boot check to not increment constantly. Hmm, you both seem to have problems with TSC..., aperf/mperf may be fed by the same internal clock as TSC. If average frequency calced via aperf/mperf is very low, the frequency would never get ramped up. It's hard to believe, because you have so different CPUs, but it looks like you both have broken TSC/aperf/mperf timers on CPU 0? At least Peter has? Another patch to try.., please use: acpi_cpufreq.disable_average=1 boot param and check dmesg that it got applied: "acpi-cpufreq: average (aperf/mperf) accounting disabled by user" -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug. -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html