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From: bugzilla-daemon@bugzilla.kernel.org
To: cpufreq@vger.kernel.org
Subject: [Bug 19262] New: CPU0 locked at slower speed, regardless of governor
Date: Tue, 28 Sep 2010 19:08:46 GMT	[thread overview]
Message-ID: <bug-19262-12968@https.bugzilla.kernel.org/> (raw)

https://bugzilla.kernel.org/show_bug.cgi?id=19262

           Summary: CPU0 locked at slower speed, regardless of governor
           Product: Power Management
           Version: 2.5
    Kernel Version: 2.6.36-rc5-00226-g050026f
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: cpufreq
        AssignedTo: cpufreq@vger.kernel.org
        ReportedBy: aexoden@gmail.com
        Regression: Yes


Created an attachment (id=31732)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=31732)
output of `cat /proc/cpuinfo`

Hardware: Intel Q6600 2.4Ghz (clocked at 2.8Ghz)
Software: Gentoo Linux ~amd64, running Linus's HEAD.

Problem description:
The first core appears to be locked at a slower speed. The CPU has two
potential speeds: the maximum speed and and the maximum speed divided by 1.5.
CPU2, 3, and 4 all operate correctly at 2.8Ghz, while CPU0 remains stuck at
1.87Ghz. The problem is observed at stock speeds. I don't remember when it
first appeared, but I believe it was 2.6.34.

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             reply	other threads:[~2010-09-28 19:08 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-28 19:08 bugzilla-daemon [this message]
2010-09-28 19:10 ` [Bug 19262] CPU0 locked at slower speed, regardless of governor bugzilla-daemon
2010-09-28 19:11 ` bugzilla-daemon
2010-09-28 19:11 ` bugzilla-daemon
2010-09-30  1:30 ` bugzilla-daemon
2010-09-30  1:30 ` bugzilla-daemon
2010-09-30  8:51 ` bugzilla-daemon
2010-09-30  9:46 ` bugzilla-daemon
2010-09-30 12:35 ` bugzilla-daemon
2010-09-30 21:23 ` bugzilla-daemon
2010-09-30 21:24 ` bugzilla-daemon
2010-10-01 15:12 ` [Bug 19262] CPU0 locked at slower speed, regardless of governor on IP35 Pro(Intel P35-ICH9R) bugzilla-daemon
2010-10-01 15:15 ` bugzilla-daemon
2010-10-19  0:55 ` bugzilla-daemon
2010-12-09 21:02 ` bugzilla-daemon

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