linux-kernel - Re: [PATCH] Linux Kernel Markers 0.5 for Linux 2.6.17 (with probe management)

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Date:	Thu, 21 Sep 2006 18:06:56 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Mathieu Desnoyers <compudj@...stal.dyndns.org>
Cc:	Martin Bligh <mbligh@...gle.com>,
	"Frank Ch. Eigler" <fche@...hat.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	prasanna@...ibm.com, Andrew Morton <akpm@...l.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	Paul Mundt <lethal@...ux-sh.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Jes Sorensen <jes@....com>, Tom Zanussi <zanussi@...ibm.com>,
	Richard J Moore <richardj_moore@...ibm.com>,
	Michel Dagenais <michel.dagenais@...ymtl.ca>,
	Christoph Hellwig <hch@...radead.org>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Thomas Gleixner <tglx@...utronix.de>,
	William Cohen <wcohen@...hat.com>, ltt-dev@...fik.org,
	systemtap@...rces.redhat.com, Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: [PATCH] Linux Kernel Markers 0.5 for Linux 2.6.17 (with probe management)


* Mathieu Desnoyers <compudj@...stal.dyndns.org> wrote:

> +config MARK_SYMBOL
> +config MARK_JUMP_CALL
> +config MARK_JUMP_INLINE
> +config MARK_JUMP

same NACK over the proliferation of options as before:

  http://marc.theaimsgroup.com/?l=linux-kernel&m=115881457219562&w=2

Tap, tap, is this thing on? ;)

found one related reply from you that i didnt answer yet:

  "As an example, LTTng traces the page fault handler, when kprobes just
   can't instrument it."

but tracing a raw pagefault at the arch level is a bad idea anyway, we 
want to trace __handle_mm_fault(). That way you can avoid having to 
modify every architecture's pagefault handler ...

but the other points remained unanswered as far as i can see.

	Ingo
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