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Date:   Fri, 28 Feb 2020 00:15:18 +0100
From:   Frederic Weisbecker <frederic@kernel.org>
To:     Thomas Gleixner <tglx@linutronix.de>
Cc:     LKML <linux-kernel@vger.kernel.org>, x86@kernel.org,
        Steven Rostedt <rostedt@goodmis.org>,
        Brian Gerst <brgerst@gmail.com>,
        Juergen Gross <jgross@suse.com>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Arnd Bergmann <arnd@arndb.de>
Subject: Re: [patch 3/8] x86/entry/common: Mark syscall entry points
 notrace/nokprobe
Message-ID: <20200227231517.GF21795@lenoir>
References: <20200225220801.571835584@linutronix.de>
 <20200225221305.496864179@linutronix.de>
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On Tue, Feb 25, 2020 at 11:08:04PM +0100, Thomas Gleixner wrote:
> Anything before enter_from_user_mode() is not safe to be traced or probed.

Perhaps the changelog should clarify as to why exactly it isn't
safe to trace before enter_from_user_mode(). There have been
so many patches on that lately that I'm not clear on that either.

Thanks.