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Date:   Thu, 1 Feb 2018 12:10:15 -0500
From:   Steven Rostedt <rostedt@goodmis.org>
To:     Frank Rowand <frowand.list@gmail.com>
Cc:     Wolfram Sang <wsa@the-dreams.de>,
        Wolfram Sang <wsa+renesas@sang-engineering.com>,
        devicetree@vger.kernel.org,
        Tyrel Datwyler <tyreld@linux.vnet.ibm.com>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        linux-renesas-soc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        Rob Herring <robh+dt@kernel.org>, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH v2 0/1] of: easier debugging for node life cycle
 issues
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On Thu, 25 Jan 2018 16:46:06 -0800
Frank Rowand <frowand.list@gmail.com> wrote:

> The point is that using ftrace means there are use cases for the
> debug information where the information will not be available.

Note, this email came out when I was traveling. I'm now looking at the
code and trace events are enabled right after rcu_init() in init/main.c.

The early_initcall() enables syscall events(), as they are not
available earlier.

-- Steve