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Message-ID: <20080906120346.GA30964@elte.hu>
Date: Sat, 6 Sep 2008 14:03:47 +0200
From: Ingo Molnar <mingo@...e.hu>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
Peter Zijlstra <peterz@...radead.org>,
Andrew Morton <akpm@...ux-foundation.org>,
David Miller <davem@...emloft.net>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
linuxppc-dev@...abs.org
Subject: Re: [PATCH 0/2] ftrace: fixes for PPC
* Steven Rostedt <rostedt@...dmis.org> wrote:
> I spent the day chasing a bug that would hang PPC on boot up when
> ftrace is configured in. I found that it was simply a stupid bug I did
> to handle the non MCOUNT_RECORD case. Since I was testing only on x86,
> and the MCOUNT_RECORD is automatically set for dynamic ftrace if it is
> available, I did not test the case where MCOUNT_RECORD was not set.
>
> I have not finished porting MCOUNT_RECORD to PPC, but have found that
> it has caused some issues for archs that do not support it yet.
>
> This patch series handles these cases.
applied to tip/tracing/ftrace, thanks Steve.
Ingo
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