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Date:      Tue, 28 Sep 2021 04:26:08 +0000
From:      bugzilla-noreply@freebsd.org
To:        amd64@FreeBSD.org
Subject:   [Bug 162043] dev.cpu.0.freq is missing [regression]
Message-ID:  <bug-162043-17361-EM2lNBVcc9@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-162043-17361@https.bugs.freebsd.org/bugzilla/>
References:  <bug-162043-17361@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D162043

Felix Johnson <felix.the.red@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |Unable to Reproduce
             Status|Open                        |Closed
                 CC|                            |felix.the.red@gmail.com

--- Comment #7 from Felix Johnson <felix.the.red@gmail.com> ---
I think the key information is the error returned during device_attach.
A return value of 6 is ENXIO (device not configured).

est0: <Enhanced SpeedStep Frequency Control> on cpu0
est: CPU supports Enhanced Speedstep, but is not recognized.
est: cpu_vendor GenuineIntel, msr 6160f2506000925
device_attach: est0 attach returned 6

The reporter also noted SpeedStep was disabled by the BIOS.

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