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From:   Thomas Gleixner <tglx@linutronix.de>
To:     Mike Galbraith <efault@gmx.de>, linux-kernel@vger.kernel.org,
        linux-tip-commits@vger.kernel.org
Cc:     Peter Zijlstra <peterz@infradead.org>, x86@kernel.org
Subject: Re: [tip: timers/core] hrtimer: Consolidate reprogramming code
In-Reply-To: <e5f39aa65a0d7d72a414556eb0c182bb8dcd1691.camel@gmx.de>
References: <20210713135158.054424875@linutronix.de>
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 <7dfb3b15af67400227e7fa9e1916c8add0374ba9.camel@gmx.de>
 <87a6lmiwi0.ffs@tglx> <877dgqivhy.ffs@tglx>
 <bc6b74396cd6b5a4eb32ff90bcc1cb059216e0f3.camel@gmx.de>
 <87v94ahemj.ffs@tglx>
 <e5f39aa65a0d7d72a414556eb0c182bb8dcd1691.camel@gmx.de>
Date:   Thu, 12 Aug 2021 18:58:26 +0200
Message-ID: <87pmuiha6l.ffs@tglx>
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On Thu, Aug 12 2021 at 17:31, Mike Galbraith wrote:
> On Thu, 2021-08-12 at 17:22 +0200, Thomas Gleixner wrote:
>> >
>> > Config attached just in case.
>>
>> I rather assume it's a hardware dependency. What kind of machine are you
>> using?
>
> Desktop box is a garden variety MEDION i4790 box with an Nvidia GTX980.
> Lappy is an HP Spectre 360 i5-6200U w. i915 graphics.  Very mundane.

Hmm, spectre induced timer meltdown? :)

Anyway I found a box which exposes the problem. Investigating...

Thanks,

        tglx