linux-kernel - Re: [PATCH 2/2] hpet: Add HPET-based NMI watchdog support

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Message-ID: <20260204050529.GB31059@ranerica-svr.sc.intel.com>
Date: Tue, 3 Feb 2026 21:05:29 -0800
From: Ricardo Neri <ricardo.neri-calderon@...ux.intel.com>
To: Thomas Gleixner <tglx@...nel.org>
Cc: Alexander Graf <graf@...zon.com>, x86@...nel.org,
	linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
	Clemens Ladisch <clemens@...isch.de>, Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Borislav Petkov <bp@...en8.de>, Ingo Molnar <mingo@...hat.com>,
	Jonathan Corbet <corbet@....net>,
	Paolo Bonzini <pbonzini@...hat.com>,
	Pasha Tatashin <pasha.tatashin@...een.com>,
	nh-open-source@...zon.com,
	Nicolas Saenz Julienne <nsaenz@...zon.es>,
	Hendrik Borghorst <hborghor@...zon.de>,
	Filippo Sironi <sironi@...zon.de>,
	David Woodhouse <dwmw@...zon.co.uk>,
	Jan Schönherr <jschoenh@...zon.de>,
	Sasha Levin <sashal@...nel.org>
Subject: Re: [PATCH 2/2] hpet: Add HPET-based NMI watchdog support

On Tue, Feb 03, 2026 at 09:49:26PM +0100, Thomas Gleixner wrote:
> On Tue, Feb 03 2026 at 11:44, Ricardo Neri wrote:
> > On Tue, Feb 03, 2026 at 04:28:11PM +0100, Thomas Gleixner wrote:
> >> I don't remember. That thing clearly fell through the cracks.
> >
> > My impression at the time was that the buddy hardlockup detector met the
> > goal of freeing the PMU counter and there was little interest on using the
> > HPET.
> >
> >> Let me find it again and reply to that.
> >
> > Does this mean that there is renewed interest for this?
> 
> It seems Alex is interrested and the code minus the rejects and my
> todays suggestion looks palatable.

Great! I will update the series and post a new version.
> 
>