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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
Date: Thu, 12 Aug 2021 18:58:26 +0200	[thread overview]
Message-ID: <87pmuiha6l.ffs@tglx> (raw)
In-Reply-To: <e5f39aa65a0d7d72a414556eb0c182bb8dcd1691.camel@gmx.de>

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

  reply	other threads:[~2021-08-12 16:58 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-13 13:39 [patch V2 00/10] hrtimer: Reprogramming and clock_was_set() overhaul Thomas Gleixner
2021-07-13 13:39 ` [patch V2 01/10] hrtimer: Avoid double reprogramming in __hrtimer_start_range_ns() Thomas Gleixner
2021-08-10 16:02   ` [tip: timers/core] " tip-bot2 for Thomas Gleixner
2021-07-13 13:39 ` [patch V2 02/10] hrtimer: Consolidate reprogramming code Thomas Gleixner
2021-08-10 16:02   ` [tip: timers/core] " tip-bot2 for Peter Zijlstra
2021-08-12  7:19     ` Mike Galbraith
2021-08-12 14:11       ` Thomas Gleixner
2021-08-12 14:32         ` Thomas Gleixner
2021-08-12 15:04           ` Mike Galbraith
2021-08-12 15:22             ` Thomas Gleixner
2021-08-12 15:31               ` Mike Galbraith
2021-08-12 16:58                 ` Thomas Gleixner [this message]
2021-08-12 15:27             ` Mike Galbraith
2021-08-12 20:32           ` [PATCH] hrtimer: Unbreak hrtimer_force_reprogram() Thomas Gleixner
2021-08-12 20:40             ` [tip: timers/core] " tip-bot2 for Thomas Gleixner
2021-08-13  7:58             ` [PATCH] " Thomas Gleixner
2021-08-12 20:31         ` [PATCH] hrtimer: Use raw_cpu_ptr() in clock_was_set() Thomas Gleixner
2021-08-12 20:40           ` [tip: timers/core] " tip-bot2 for Thomas Gleixner
2021-08-13  6:42           ` [PATCH] " Marek Szyprowski
     [not found]   ` <CGME20210812130945eucas1p117fc1e90f31c8d9fd177932cd1a18512@eucas1p1.samsung.com>
2021-08-12 13:09     ` [patch V2 02/10] hrtimer: Consolidate reprogramming code Marek Szyprowski
2021-07-13 13:39 ` [patch V2 03/10] hrtimer: Ensure timerfd notification for HIGHRES=n Thomas Gleixner
2021-08-10 16:02   ` [tip: timers/core] " tip-bot2 for Thomas Gleixner
2021-07-13 13:39 ` [patch V2 04/10] hrtimer: Force clock_was_set() handling for the HIGHRES=n, NOHZ=y case Thomas Gleixner
2021-08-10 16:02   ` [tip: timers/core] " tip-bot2 for Thomas Gleixner
2021-07-13 13:39 ` [patch V2 05/10] timerfd: Provide timerfd_resume() Thomas Gleixner
2021-08-10 16:02   ` [tip: timers/core] " tip-bot2 for Thomas Gleixner
2021-07-13 13:39 ` [patch V2 06/10] timekeeping: Distangle resume and clock-was-set events Thomas Gleixner
2021-08-10 16:02   ` [tip: timers/core] " tip-bot2 for Thomas Gleixner
2021-07-13 13:39 ` [patch V2 07/10] time/timekeeping: Avoid invoking clock_was_set() twice Thomas Gleixner
2021-08-10 16:02   ` [tip: timers/core] " tip-bot2 for Thomas Gleixner
2021-07-13 13:39 ` [patch V2 08/10] hrtimer: Add bases argument to clock_was_set() Thomas Gleixner
2021-08-10 16:02   ` [tip: timers/core] " tip-bot2 for Thomas Gleixner
2021-07-13 13:39 ` [patch V2 09/10] hrtimer: Avoid unnecessary SMP function calls in clock_was_set() Thomas Gleixner
2021-08-10 16:02   ` [tip: timers/core] " tip-bot2 for Marcelo Tosatti
2021-07-13 13:39 ` [patch V2 10/10] hrtimer: Avoid more " Thomas Gleixner
2021-08-10 16:02   ` [tip: timers/core] " tip-bot2 for Thomas Gleixner

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