Date: Sun, 06 Feb 2005 16:54:39 -0800 From: Nate Lawson <nate@root.org> To: Pawel Worach <pawel.worach@telia.com> Cc: acpi@freebsd.org Subject: Re: HEADSUP: cpufreq import complete, acpi_throttling changed Message-ID: <4206BC4F.7070609@root.org> In-Reply-To: <4206B5A6.20100@telia.com> References: <42068A5C.1030300@root.org> <4206B5A6.20100@telia.com>
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Pawel Worach wrote: > Tried this on my ThinkPad T41, seems to work great except I managed to > produce > this message one time. > > -- Power is plugged in here, freq=1700 > acpi_acad0: Off Line > cpu0: Performance states changed > -- Power unplugged, power_profile adjusted freq to 75 :) > acpi_acad0: On Line > -- Power reconnected, freq stayed at 75 > acpi_perf0: Px transition to 1700 failed > acpi_perf0: set freq failed, err 6 > stray irq7 > stray irq7 > stray irq7 > stray irq7 > too many stray irq 7's: not logging anymore > cpu0: Performance states changed > -- Manually pushed freq back to 1700 without problems I suspect something slowed the machine at that point in time? Perhaps we exceeded the time for the transition in acpi_perf0. I'll look into this a bit to be sure though. > # sysctl dev.cpu > dev.cpu.0.%desc: ACPI CPU (3 Cx states) > dev.cpu.0.%driver: cpu > dev.cpu.0.%location: handle=\_PR_.CPU_ > dev.cpu.0.%pnpinfo: _HID=none _UID=0 > dev.cpu.0.%parent: acpi0 > dev.cpu.0.freq: 1700 > dev.cpu.0.freq_levels: 1700/24500 1487/21437 1400/19500 1275/18375 > 1225/17062 1200/16000 1062/15312 1000/13000 900/12000 875/12187 > 850/12250 800/9500 750/10000 700/9750 637/9187 600/6000 525/7312 > 500/6500 450/6000 425/6125 400/4750 375/4875 350/4875 300/4000 250/3250 > 212/3062 175/2437 150/2000 125/1625 100/1187 75/750 > > Both acpi_perf.ko and cpufreq.ko loaded. Hehe, 75 Mhz is 750 milliwatts. You don't need to load cpufreq.ko since all that supports right now is Speedstep-ICH. In the future, perhaps it will have a SpeedStep Pentium-M driver also. -- Nate
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