[Bug 53051] New: Conservative governor get's sometimes stuck at highest frequency

[Bug 53051] New: Conservative governor get's sometimes stuck at highest frequency

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=53051

           Summary: Conservative governor get's sometimes stuck at highest
                    frequency
           Product: Power Management
           Version: 2.5
    Kernel Version: 3.6.11
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: cpufreq
        AssignedTo: cpufreq@vger.kernel.org
        ReportedBy: cem.aydin@gmx.ch
        Regression: No


Created an attachment (id=91801)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=91801)
Zipped files as described in description.

About once a week, when booting daily, the CPU (all cores) get's stuck at
highest frequency.

Unfortunately, I can't tell exactly when this appeared but it was about during
the time, when I switched to systemd and cpufrequtils got replaced cpupower,
about half a year ago.

The kernel modules are loaded properly and the start scripts are executed. I
can not find any difference, when this occurs or when it doesn't. Exept that
the frequency is stucked at highest level of course. When this occurs I wasn't
able to set the frequency manually (by the userspace governor). Reloading the
conservative module or reexuting the (systemd) start script did not have any
effect. The only thing I can do to resolve the issue is reboot.

I use an up to date Arch Linux with the regular kernel and systemd.

Additional Infos:
proc/cpuinfo reports the wrong frequency (lowest). I think this is mentioned in
another bug. However cpupower -c all frequency-info (executed as root) reports
the correct highest frequency. I can clearly see that this is the true
frequency because the temperatures reported by sensors are almost 10°C higher
than under normal circumstances. I don't have any process that could cause the
governor to raise the frequencies. CPU usage is below 1% and load is between
0.0 and 0.05.

Hardware:
A HP Pavilion dv6 CORE i5

Attachments:
- cpupower (/usr/lib/systemd/scripts/cpupower, the start up scripts used by
systemd to set the frequencies)
- cpupower.conf (/etc/conf.d/cpupower)
- cpupower-service.txt (output from systemctl status cpupower.service)
- cpupower.txt (output from cpupower -c all frequency-info)
- journal.txt (output from journalctl -b | grep cpufreq)
- lsmod.txt (output from lsmod |grep cpufreq)
- proc_cpuinfo.txt (output from cat /proc/cpuinfo (wrong frequencies))

Please let me know if you need additional info.

Regards

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[Bug 53051] Conservative governor get's sometimes stuck at highest frequency

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=53051


Aaron Lu <aaron.lu@intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |aaron.lu@intel.com
         AssignedTo|cpufreq@vger.kernel.org     |aaron.lu@intel.com




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[Bug 53051] Conservative governor get's sometimes stuck at highest frequency

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=53051


Aaron Lu <aaron.lu@intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|aaron.lu@intel.com          |cpufreq@vger.kernel.org




--- Comment #4 from Aaron Lu <aaron.lu@intel.com>  2013-04-02 14:05:31 ---
Thanks Cem. It would be good to test latest Linus' tree too.

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[Bug 53051] Conservative governor get's sometimes stuck at highest frequency

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=53051


Zhang Rui <rui.zhang@intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rui.zhang@intel.com




--- Comment #5 from Zhang Rui <rui.zhang@intel.com>  2013-04-25 02:17:30 ---
Cem, is there any update on this?

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[Bug 53051] Conservative governor get's sometimes stuck at highest frequency - HP Pavilion dv6 CORE i5

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=53051


Zhang Rui <rui.zhang@intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Conservative governor get's |Conservative governor get's
                   |sometimes stuck at highest  |sometimes stuck at highest
                   |frequency                   |frequency - HP Pavilion dv6
                   |                            |CORE i5




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[Bug 53051] Conservative governor get's sometimes stuck at highest frequency - HP Pavilion dv6 CORE i5

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https://bugzilla.kernel.org/show_bug.cgi?id=53051





--- Comment #6 from cem.aydin@gmx.ch  2013-05-05 13:48:31 ---
Hi

Since my last comment (2013-04-02) this didn't occur anymore !

Using 3.8.11-1-ARCH now.

However I'd like to keep this open for one or two more weeks to make sure it
doesn't appear anymore.

Regards

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[Bug 53051] Conservative governor get's sometimes stuck at highest frequency - HP Pavilion dv6 CORE i5

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=53051


cem.aydin@gmx.ch changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |CLOSED
         Resolution|                            |OBSOLETE




--- Comment #7 from cem.aydin@gmx.ch  2013-05-12 15:56:02 ---
Ok

This bug didn't occur anymore.

And by todays update to 3.9.2-1-ARCH acpi-cpufreq got replaced by the new
intel-pstate and it's powersave governor.

I'm closing as obsolete.

Thanks and Regards

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