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    SubjectRe: [RFC PATCH 16/23] watchdog/hardlockup: Add an HPET-based hardlockup detector
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    Hi,

    On 06/12/2018 05:57 PM, Ricardo Neri wrote:
    > diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
    > index c40c7b7..6e79833 100644
    > --- a/lib/Kconfig.debug
    > +++ b/lib/Kconfig.debug
    > @@ -828,6 +828,16 @@ config HARDLOCKUP_DETECTOR_PERF
    > bool
    > select SOFTLOCKUP_DETECTOR
    >
    > +config HARDLOCKUP_DETECTOR_HPET
    > + bool "Use HPET Timer for Hard Lockup Detection"
    > + select SOFTLOCKUP_DETECTOR
    > + select HARDLOCKUP_DETECTOR
    > + depends on HPET_TIMER && HPET
    > + help
    > + Say y to enable a hardlockup detector that is driven by an High-Precision
    > + Event Timer. In addition to selecting this option, the command-line
    > + parameter nmi_watchdog option. See Documentation/admin-guide/kernel-parameters.rst

    The "In addition ..." thing is a broken (incomplete) sentence.

    > +
    > #
    > # Enables a timestamp based low pass filter to compensate for perf based
    > # hard lockup detection which runs too fast due to turbo modes.


    --
    ~Randy

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