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Date: Tue, 19 Feb 2019 12:44:57 -0800
From: Ben Widawsky <bwidawsk@freebsd.org>
To: Milan Obuch <freebsd-hackers@dino.sk>
Cc: freebsd-hackers@freebsd.org
Subject: Re: est on newer CPU
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On 19-02-18 18:01:19, Milan Obuch wrote:
> Hi,
> 
> I have currently installed FreeBSD on HP gen10 server. With an
> exception of HP RAID controller, needs to be switched to SATA mode,
> everything went well (OK, I did some errors so it was a bit of
> trials-errors but basically no problem).
> 
> Now I found there is not working powerd - in dmesg
> 
> est: CPU supports Enhanced Speedstep, but is not recognized.
> est: cpu_vendor GenuineIntel, msr 20b600002500
> device_attach: est0 attach returned 6
> 
> CPU is
> 
> CPU: Intel(R) Pentium(R) Gold G5400 CPU @ 3.70GHz (3696.18-MHz K8-class CPU)
> 
> Actual system version is
> 
> 12.0-STABLE FreeBSD 12.0-STABLE r344230
> 
> Is there something I can do to get est recognize this CPU and get
> working powerd?
> 
> Regards,
> Milan

To start with, can you try
hw.est.msr_info=1

Also, is acpi_perf being loaded?