From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: "Peter Teoh" <htmldeveloper@gmail.com>
Cc: "Steven Rostedt" <srostedt@redhat.com>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: Some FTRACE related question
Date: Sat, 22 Nov 2008 13:59:24 +0100 [thread overview]
Message-ID: <200811221359.24808.rjw@sisk.pl> (raw)
In-Reply-To: <804dabb00811220047q6e0f24eap23e9a7c4c7bd71b6@mail.gmail.com>
On Saturday, 22 of November 2008, Peter Teoh wrote:
> Q1: how to use ftrace to ftrace itself? (i would like to see some
> ftrace-triggered flow) In view of the following patch:
>
> http://linux.derkeiler.com/Mailing-Lists/Kernel/2008-11/msg03745.html
>
> Is it to prevent this from being possible?
I can't really answer this, sorry.
> Q2: how to ftrace s2ram and resume? I attempted to do it, but the
> trace output is always filled with "resume" related functions when it
> started up, which is only logical.
The tracing is disabled during suspend/resume, so you can't.
Thanks,
Rafael
next prev parent reply other threads:[~2008-11-22 12:59 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-22 8:47 Some FTRACE related question Peter Teoh
2008-11-22 12:59 ` Rafael J. Wysocki [this message]
2008-11-23 9:41 ` [PATCH] tracing: allow tracing of suspend/resume & hibernation code again Ingo Molnar
2008-11-23 15:37 ` Peter Teoh
2008-11-24 15:47 ` Peter Teoh
2008-12-10 3:09 ` Peter Teoh
2008-11-24 21:43 ` Steven Rostedt
2008-11-22 13:30 ` Some FTRACE related question Steven Rostedt
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