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From: Thomas Gleixner <tglx@kernel.org>
To: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Cc: Alexander Graf <graf@amazon.com>, x86@kernel.org,
 linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, Clemens Ladisch
 <clemens@ladisch.de>, Arnd Bergmann <arnd@arndb.de>, Greg Kroah-Hartman
 <gregkh@linuxfoundation.org>, Dave Hansen <dave.hansen@linux.intel.com>,
 Borislav Petkov <bp@alien8.de>, Ingo Molnar <mingo@redhat.com>, Jonathan
 Corbet <corbet@lwn.net>, Paolo Bonzini <pbonzini@redhat.com>, Pasha
 Tatashin <pasha.tatashin@soleen.com>, nh-open-source@amazon.com, Nicolas
 Saenz Julienne <nsaenz@amazon.es>, Hendrik Borghorst <hborghor@amazon.de>,
 Filippo Sironi <sironi@amazon.de>, David Woodhouse <dwmw@amazon.co.uk>,
 Jan =?utf-8?Q?Sch=C3=B6nherr?= <jschoenh@amazon.de>, Sasha Levin
 <sashal@kernel.org>
Subject: Re: [PATCH 2/2] hpet: Add HPET-based NMI watchdog support
In-Reply-To: <20260203194429.GA30254@ranerica-svr.sc.intel.com>
References: <20260202174803.66640-1-graf@amazon.com>
 <20260202174803.66640-3-graf@amazon.com> <87jywu3yov.ffs@tglx>
 <1e13c61d-8581-4ece-b31c-7aa771ba7bc2@amazon.com> <878qd94zjo.ffs@tglx>
 <20260203194429.GA30254@ranerica-svr.sc.intel.com>
Date: Tue, 03 Feb 2026 21:49:26 +0100
Message-ID: <87cy2l363t.ffs@tglx>
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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.