From: bugzilla-daemon@bugzilla.kernel.org
To: linux-pm@kernel.org
Subject: [Bug 197009] New: /proc/cpuinfo does not update frequency
Date: Wed, 20 Sep 2017 18:55:27 +0000 [thread overview]
Message-ID: <bug-197009-137361@https.bugzilla.kernel.org/> (raw)
https://bugzilla.kernel.org/show_bug.cgi?id=197009
Bug ID: 197009
Summary: /proc/cpuinfo does not update frequency
Product: Power Management
Version: 2.5
Kernel Version: 4.13
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: cpufreq
Assignee: linux-pm@vger.kernel.org
Reporter: aleksey@rybalkin.org
Regression: No
Created attachment 258537
--> https://bugzilla.kernel.org/attachment.cgi?id=258537&action=edit
kernel config
The 4.13 kernel with intel_pstate=passive (or active) does not appear to
correctly update the CPU frequency in /proc/cpuinfo
After booting the reported frequency (but not the real frequency) is stuck on
one value and does not update:
$ grep MHz /proc/cpuinfo
cpu MHz : 2194.859
cpu MHz : 2194.859
cpu MHz : 2194.859
cpu MHz : 2194.859
hardware: ThinkPad X250
cpu: Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz
kernel: 4.13.3 vanilla (config attached)
As far as I remember this worked in 4.11 and broke after 4.12, I can double
check if needed.
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next reply other threads:[~2017-09-20 18:55 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-20 18:55 bugzilla-daemon [this message]
2017-09-20 19:03 ` [Bug 197009] /proc/cpuinfo does not update frequency bugzilla-daemon
2017-09-20 19:14 ` bugzilla-daemon
2017-09-22 5:01 ` bugzilla-daemon
2017-10-11 5:51 ` bugzilla-daemon
2017-10-17 1:41 ` bugzilla-daemon
2017-10-24 5:12 ` bugzilla-daemon
2017-11-02 1:44 ` bugzilla-daemon
2017-11-05 22:28 ` bugzilla-daemon
2017-11-18 15:34 ` bugzilla-daemon
2017-11-20 5:28 ` bugzilla-daemon
2017-11-20 14:36 ` bugzilla-daemon
2017-11-20 19:12 ` bugzilla-daemon
2017-11-20 22:16 ` bugzilla-daemon
2017-11-20 22:22 ` bugzilla-daemon
2017-11-21 1:30 ` bugzilla-daemon
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