[Bug 11623] scaling_available_frequencies reports too high frequencies

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http://bugzilla.kernel.org/show_bug.cgi?id=11623





------- Comment #5 from nm127@xxxxxxxxxxx  2008-10-11 12:28 -------
Created an attachment (id=18264)
 --> (http://bugzilla.kernel.org/attachment.cgi?id=18264&action=view)
git bisect log

I also found that the 2.6.25-rc1 is bad.

I bisected the problem and found that:

ed9cbcd40004904dbe61ccc16d6106a7de38c998 is first bad commit
commit ed9cbcd40004904dbe61ccc16d6106a7de38c998
Author: Zhao Yakui <yakui.zhao@xxxxxxxxx>
Date:   Tue Nov 20 14:20:21 2007 -0500

    Revert "speedstep-lib.c: fix frequency multiplier for Pentium4 models 0&1"

    For P4 model < 2, The MSR_FBC_REGISTER_ID ratio is undefined.
    Revert the commit that was added to handle that case,
    as it results in random MHz displayed.  Something else will
    have to be done to properly handle model < 2.

    //commit 3e4159ab35c88aef5e063ba78796b277b762a30a
    //Author: matthias.christian <matthias.christian>
    //Date:   Sat Feb 5 23:09:38 2005 +0000
    //
    //    [PATCH] speedstep-lib.c: fix frequency multiplier for Pentium4 models 
0&1
    //
    //    The Pentium4 models 0&1 have a longer MSR_EBC_FREQUENCY_ID register
as
 the
    //    models 2&3, so the bit shift must be bigger.
    //
    //    Signed-off-by: Matthias-Christian Ott <matthias.christian@xxxxxxxxxx>
    //    Signed-off-by: Dominik Brodowski <linux@xxxxxxxx>
    //    Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
    //    Signed-off-by: Linus Torvalds <torvalds@xxxxxxxx>
    //
    //    BKrev: 42055232eWM-NgjhZVir44mp5GXktQ

    http://bugzilla.kernel.org/show_bug.cgi?id=7186

    Signed-off-by: Zhao Yakui <yakui.zhao@xxxxxxxxx>
    Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

:040000 040000 d2f684cee8d8802839210fe8ea85957373011f29
fb90c8ce0bcb025156d33673
d16a841140d19f9c M      arch


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