linux-kernel - Re: [PATCH] hrtimer: Reset hrtimer cpu base proper on CPU hotplug

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Date:   Mon, 29 Jan 2018 09:20:48 +0100
From:   Sebastian Sewior <bigeasy@...utronix.de>
To:     "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>,
        Anna-Maria Gleixner <anna-maria@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>
Subject: Re: [PATCH] hrtimer: Reset hrtimer cpu base proper on CPU hotplug

On 2018-01-26 14:09:17 [-0800], Paul E. McKenney wrote:
> find this one.  ;-)  But it did pass rcutorture testing for a great many
> years, didn't it?  :-/

It started to trigger better (or at all) on our test box with
	modprobe kvm_intel preemption_timer=n

on the host kernel so maybe a completely unrelated change helped to
trigger this.

Sebastian