linux-kernel - Re: [PATCH backport to 6.10] x86/cpu: Add INTEL_FAM6_LUNARLAKE_M to X86_BUG

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Message-ID: <87h68dnttc.ffs@tglx>
Date: Tue, 12 Nov 2024 02:07:27 +0100
From: Thomas Gleixner <tglx@...utronix.de>
To: Len Brown <lenb@...nel.org>, peterz@...radead.org, x86@...nel.org
Cc: rafael@...nel.org, linux-kernel@...r.kernel.org,
 linux-pm@...r.kernel.org, Len Brown <len.brown@...el.com>,
 stable@...r.kernel.org
Subject: Re: [PATCH backport to 6.10] x86/cpu: Add INTEL_FAM6_LUNARLAKE_M to
 X86_BUG_MONITOR

On Fri, Nov 08 2024 at 08:49, Len Brown wrote:
> From: Len Brown <len.brown@...el.com>
>
> Under some conditions, MONITOR wakeups on Lunar Lake processors
> can be lost, resulting in significant user-visible delays.
>
> Add LunarLake to X86_BUG_MONITOR so that wake_up_idle_cpu()
> always sends an IPI, avoiding this potential delay.
> Update the X86_BUG_MONITOR workaround to handle
> the new smp_kick_mwait_play_dead() path.
>
> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219364
>
> Cc: stable@...r.kernel.org # 6.10
> Signed-off-by: Len Brown <len.brown@...el.com>
> ---
> This is a backport of the upstream patch to Linux-6.10 and earlier

You either fail to understand or intentionally ignore the process for
stable backports, which is in place since more than a decade.

Documentation/process/* has plenty of information how that works and
you're around long enough to know that already.

I don't care about you wasting your time, but I very much care about you
wasting my time to deal with pointless emails. I get plenty enough of
them every day.

Thanks,

        tglx