Messages in this thread | | | Subject | Re: [RFC PATCH 16/23] watchdog/hardlockup: Add an HPET-based hardlockup detector | From | Randy Dunlap <> | Date | Tue, 12 Jun 2018 22:23:47 -0700 |
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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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