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    SubjectRe: Regression in 2.6.27 caused by commit bfc0f59
    On Mon, 1 Sep 2008, Larry Finger wrote:

    > Thomas Gleixner wrote:
    > >
    > > > +Clocksource tsc unstable (delta = 500037272 ns)
    > >
    > > > -Clocksource tsc unstable (delta = 83950402 ns)
    > >
    > > In both cases the TSC is ahead of the pm_timer, which looks like the
    > > pm_timer is behaving strange.
    > >
    > > Can you please disable the pm_timer (in the kernel config,
    > > unfortunately there is no command line option for that) for a test and
    > > provide the relevant output of demsg ?
    >
    > I manually deleted CONFIG_X86_PM_TIMER from .config, but it returns silently.
    > The only way I see to turn off the pm_timer is to disable power management. Is
    > that what I need to do?

    The switch depends on CONFIG_EMBEDDED. Just turn that on in "General Setup"

    [*] Configure standard kernel features (for small systems) --->

    Then you get an extra switch in:

    "Powermanagement Options"
    ACPI (Advanced Configuration and Power Interface) Support --->
    [*] Power Management Timer Support

    Turn that one off.

    Thanks,

    tglx


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