linux-kernel - Re: [linux-sunxi] Re: [PATCH v3 1/2] arm64: arch_timer: Workaround for Allwinner A64 timer instability

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Date:   Wed, 04 Dec 2019 12:21:05 +0000
From:   Marc Zyngier <maz@...nel.org>
To:     <anarsoul@...il.com>
Cc:     <marc.zyngier@....com>, Samuel Holland <samuel@...lland.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        Chen-Yu Tsai <wens@...e.org>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        devicetree <devicetree@...r.kernel.org>,
        arm-linux <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-sunxi <linux-sunxi@...glegroups.com>
Subject: Re: [linux-sunxi] Re: [PATCH v3 1/2] arm64:  arch_timer: Workaround for Allwinner A64 timer instability

[please note that my email address has changed]

On 2019-12-04 04:18, Vasily Khoruzhick wrote:

[...]

> Unfortunately this patch doesn't completely eliminate the jumps. 
> There
> have been reports from users who still saw 95y jump even with the
> patch applied.
>
> Personally I've seen it once or twice on my Pine64-LTS.
>
> Looks like we need bigger hammer. Does anyone have any idea what it 
> could be?

Which kernel version did you see this happening on?

         M.
-- 
Jazz is not dead. It just smells funny...