linux-kernel - Re: [PATCH -tip ] [BUGFIX]tracing/kprobes: Fix kprobe-tracer to support stack trace

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Message-ID: <1305629425.5456.610.camel@gandalf.stny.rr.com>
Date:	Tue, 17 May 2011 06:50:25 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Frederic Weisbecker <fweisbec@...il.com>,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	yrl.pp-manager.tt@...achi.com
Subject: Re: [PATCH -tip ] [BUGFIX]tracing/kprobes: Fix kprobe-tracer to
 support stack trace

On Tue, 2011-05-17 at 17:45 +0900, Masami Hiramatsu wrote:
> (2011/05/12 19:22), Masami Hiramatsu wrote:
> > Fix to support kernel stack trace correctly on kprobe-tracer.
> > Since the execution path of kprobe-based dynamic events is different
> > from other tracepoint-based events, normal ftrace_trace_stack() doesn't
> > work correctly. To fix that, this introduces ftrace_trace_stack_regs()
> > which traces stack via pt_regs instead of current stack register.
> 
> Hmm, any comments?
> 

Hi Masami,

I've been traveling, and I'm way behind in my email. I'll take a look at
this later today.

Thanks,

-- Steve


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