Date: Mon, 21 Aug 2006 17:20:52 +1000 From: "Tim Dettloff" <acpi.dettloff@gmail.com> To: "Nate Lawson" <nate@root.org> Cc: freebsd-acpi@freebsd.org Subject: Re: Powerd makes computer hang Message-ID: <f67067e80608210020r7a3119feqfdd0dec2008d0c77@mail.gmail.com> In-Reply-To: <44E9498F.8030208@root.org> References: <f67067e80608192300g7474bc76nc1c87b523bd807ea@mail.gmail.com> <44E9498F.8030208@root.org>
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On 21/08/06, Nate Lawson <nate@root.org> wrote: > dmesg would be a good start. Is there some cpufreq driver running > besides acpi_throttle? Add hint.acpi_throttle.0.disabled="1" in > loader.conf, reboot, and then retry your test. > > My guess is acpi_throttle is just a wrapper around p4-tcc on your system. dmesg with and without cpufreq.ko loaded: http://www.studentergaarden.dk/~tim/FreeBSD/dmesg_cpufreq.txt http://www.studentergaarden.dk/~tim/FreeBSD/dmesg.txt If I set hint.acpi_throttle.0.disabled=1 i need to have cpufreq.ko loaded to be able to change the frequency, but in this case I have not been able to get it to hang. With acpi_throttle enabled it hangs both with and without cpufreq.ko loaded. Another interesting thing is that different configurations lists different freq_leves. acpi_throttle: dev.cpu.0.freq_levels: 1799/-1 1574/-1 1349/-1 1124/-1 899/-1 674/-1 449/-1 224/ -1 acpi_throttle and cpufreq: dev.cpu.0.freq_levels: 1800/25000 1600/20700 1400/18112 1200/15525 1000/12937 800/8600 700/7525 600/6450 500/5375 400/4300 300/3225 200/2150 100/1075 cpufreq: dev.cpu.0.freq_levels: 1791/25000 1592/20700 796/8600 (I think these are the values used in Windows, where it doesn't hang) One last thing. If I load cpufreq after having changed the cpufreq via acpi_throttle the values gets weird: dev.cpu.0.freq_levels: 7362/25000 6544/20700 5726/18112 4908/15525 4090/12937 3272/8600 2863/7525 2454/6450 2045/5375 1636/4300 1227/3225 818/2150 409/1075 Cheers, Tim
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