linux-kernel - Re: [PATCH tracing/kprobes 0/7] tracing/kprobes: kprobe-based event tracer update and perf support

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Message-ID: <20090914022248.GA14306@nowhere>
Date:	Mon, 14 Sep 2009 04:22:51 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Masami Hiramatsu <mhiramat@...hat.com>
Cc:	Steven Rostedt <rostedt@...dmis.org>, Ingo Molnar <mingo@...e.hu>,
	lkml <linux-kernel@...r.kernel.org>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Andi Kleen <ak@...ux.intel.com>,
	Christoph Hellwig <hch@...radead.org>,
	"Frank Ch. Eigler" <fche@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, Jason Baron <jbaron@...hat.com>,
	Jim Keniston <jkenisto@...ibm.com>,
	"K.Prasad" <prasad@...ux.vnet.ibm.com>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Li Zefan <lizf@...fujitsu.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	Tom Zanussi <tzanussi@...il.com>,
	systemtap <systemtap@...rces.redhat.com>,
	DLE <dle-develop@...ts.sourceforge.net>
Subject: Re: [PATCH tracing/kprobes 0/7] tracing/kprobes: kprobe-based event
	tracer update and perf support

On Fri, Sep 11, 2009 at 05:48:24PM -0400, Masami Hiramatsu wrote:
> Frederic Weisbecker wrote:
>>
>> I've tested the above example and it works very well,
>> so I've applied this set, and the previous pending patches
>> in:
>>
>> git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing.git \
>> 	tracing/kprobes
>
> I had a bug on that tree when I did Step.1
>
> > (Step.1) Define new events under new group
> >
> > $ echo p:mygroup/myprobe do_sys_open dfd=a0 filename=a1 flags=a2 mode=a3 \
> >  > /debug/tracing/kprobes_events
> > $ echo r:mygroup/myretprobe do_sys_open rv >> /debug/tracing/kprobes_events
> > $ cat /debug/tracing/kprobes_events
> > p:myprobe do_sys_open+0 dfd=a0 filename=a1 flags=a2 mode=a3
> > r:myretprobe do_sys_open+0 rv=rv
>
> It seems that you forget to pull PATCH 7/7 of my previous series.
> And also I've found my probe registration order is buggy.
> I'll fix that.
>
> Thank you,



Sorry :-s 

Applied, thanks.

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