linux-kernel - Re: [PATCH] ftrace/jprobes/s390: Fix conflict between jprobes and function graph tracing

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Date:	Sun, 31 Jul 2016 09:25:46 -0400
From:	Martin Schwidefsky <schwidefsky@...ibm.com>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	Steven Rostedt <rostedt@...dmis.org>, Jiri Olsa <jolsa@...nel.org>,
	lkml <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Michael Grundy <grundym@...ibm.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	linux-s390@...r.kernel.org,
	Heiko Carstens <heiko.carstens@...ibm.com>
Subject: Re: [PATCH] ftrace/jprobes/s390: Fix conflict between jprobes and
 function graph tracing

On Sun, 31 Jul 2016 14:21:14 +0200
Jiri Olsa <jolsa@...hat.com> wrote:

> On Thu, Jul 28, 2016 at 02:39:33PM -0400, Steven Rostedt wrote:
> > On Mon, 18 Jul 2016 15:26:41 +0200
> > Jiri Olsa <jolsa@...nel.org> wrote:
> > 
> > > This fixes the same issue Steven already fixed for x86
> > > in following commit:
> > > 
> > >   237d28db036e ftrace/jprobes/x86: Fix conflict between jprobes and function graph tracing
> > > 
> > > It fixes the crash, that happens when function graph tracing
> > > and jprobes are used simultaneously. Please refer to above
> > > commit for details.
> > 
> > I'm guessing that this should go in via the s390 tree.
> 
> oops, I forgot to CC s390 mailing list.. CC-ing now
> 
> I can repost if needed

This is not necessary. I have seen your original patch and could test
it now. As expected it crashes without the patch and works find with
your patch.

Applied to linux-s390. Thanks.

-- 
blue skies,
   Martin.

"Reality continues to ruin my life." - Calvin.