linux-kernel - Re: [PATCH] [RFC]ARM: ftrace: pause/unpause function graph tracer in cpu

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Message-ID: <20210224103944.GQ1463@shell.armlinux.org.uk>
Date:   Wed, 24 Feb 2021 10:39:44 +0000
From:   Russell King - ARM Linux admin <linux@...linux.org.uk>
To:     liang wang <liang26812@...il.com>
Cc:     akpm@...ux-foundation.org, rppt@...nel.org, geert@...ux-m68k.org,
        penberg@...nel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [RFC]ARM: ftrace: pause/unpause function graph tracer in
 cpu_suspend()

On Wed, Feb 24, 2021 at 06:35:47PM +0800, liang wang wrote:
> Hi,all
> 
> ftrace function_graph tracer always cause kernel panic on my ARM device with
> multiple CPUs, I found a solution for the problem on ARM64, refers to
> the patch above,
> I was wondering why this bugfix on ARM64 hasn't been upstreamed to ARM,

Patches get applied to the ARM tree after they've been submitted to
the patch system. If they don't get submitted to the patch system,
then they get buried and forgotten.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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