linux-kernel - Re: [patch 3/8] x86/entry/common: Mark syscall entry points notrace/nokprobe

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Date:   Fri, 28 Feb 2020 09:59:48 +0100
From:   Alexandre Chartre <alexandre.chartre@...cle.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>
Cc:     x86@...nel.org, Steven Rostedt <rostedt@...dmis.org>,
        Brian Gerst <brgerst@...il.com>,
        Juergen Gross <jgross@...e.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Arnd Bergmann <arnd@...db.de>
Subject: Re: [patch 3/8] x86/entry/common: Mark syscall entry points
 notrace/nokprobe


On 2/25/20 11:08 PM, Thomas Gleixner wrote:
> Anything before enter_from_user_mode() is not safe to be traced or probed.
> 
> Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
> ---
>   arch/x86/entry/common.c |    9 ++++++---
>   1 file changed, 6 insertions(+), 3 deletions(-)
> 

Reviewed-by: Alexandre Chartre <alexandre.chartre@...cle.com>

alex.