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Date: Mon, 12 Nov 2018 12:21:48 -0500
From: Steven Rostedt <rostedt@...dmis.org>
To: Alexander Popov <alex.popov@...ux.com>
Cc: Masami Hiramatsu <mhiramat@...nel.org>,
 kernel-hardening@...ts.openwall.com, Kees Cook <keescook@...omium.org>,
 Jann Horn <jannh@...gle.com>, Ingo Molnar <mingo@...nel.org>, Andy
 Lutomirski <luto@...nel.org>, Joerg Roedel <joro@...tes.org>, Borislav
 Petkov <bp@...en8.de>, Thomas Gleixner <tglx@...utronix.de>, Dave Hansen
 <dave.hansen@...ux.intel.com>, Peter Zijlstra <peterz@...radead.org>, Jan
 Kara <jack@...e.cz>, Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
 Dan Williams <dan.j.williams@...el.com>, Masahiro Yamada
 <yamada.masahiro@...ionext.com>, x86@...nel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] stackleak: Disable ftrace for stackleak.c

On Mon, 12 Nov 2018 19:51:00 +0300
Alexander Popov <alex.popov@...ux.com> wrote:

> By the way, are there any other tracing/instrumentation mechanisms that should
> be disabled?

ftrace and kprobes are pretty much the only ones that currently do self
modification of code all over the kernel. Kprobes even more so than
ftrace.

-- Steve

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