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Date:      Thu, 05 Jun 2008 08:33:24 +1000
From:      Andrew Snow <andrew@modulus.org>
To:        freebsd-stable@freebsd.org
Cc:        Evren Yurtesen <yurtesen@ispro.net>
Subject:   cpufreq broken on core2duo (was: powerd is doing nothing?)
Message-ID:  <48471834.30905@modulus.org>
In-Reply-To: <484713B2.5030200@ispro.net>
References:  <4847072E.5000709@ispro.net> <48470ED0.600@modulus.org> <484713B2.5030200@ispro.net>

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Evren Yurtesen wrote:

> When you say that it doesnt work, does it give an error or? In my case 
> it doesnt give any errors just says it set it but I see that nothing is 
> set.

Here's one box:

CPU: Intel(R) Core(TM)2 Duo CPU  E8500  @ 3.16GHz
cpu0: <ACPI CPU> on acpi0
est0: <Enhanced SpeedStep Frequency Control> on cpu0
est: CPU supports Enhanced Speedstep, but is not recognized.
est: cpu_vendor GenuineIntel, msr 61a49200600091a
device_attach: est0 attach returned 6
p4tcc0: <CPU Frequency Thermal Control> on cpu0


Here's another one:
CPU: Intel(R) Xeon(R) CPU  E5410  @ 2.33GHz
cpu0: <ACPI CPU> on acpi0
est0: <Enhanced SpeedStep Frequency Control> on cpu0
est: CPU supports Enhanced Speedstep, but is not recognized.
est: cpu_vendor GenuineIntel, msr 720072006000720
device_attach: est0 attach returned 6
p4tcc0: <CPU Frequency Thermal Control> on cpu0



SYSCTLs On the first one:
dev.cpu.0.freq: 2786
dev.cpu.0.freq_levels: 2786/-1 2437/-1 2089/-1 1741/-1 1393/-1 1044/-1 
696/-1 348/-1

Attempting to change dev.cpu.0.freq has no effect and says:
sysctl: dev.cpu.0.freq: Invalid argument




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