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From: Karim Yaghmour <karim@opersys.com>
To: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Martin Bligh <mbligh@google.com>,
	prasanna@in.ibm.com, Andrew Morton <akpm@osdl.org>,
	"Frank Ch. Eigler" <fche@redhat.com>, Ingo Molnar <mingo@elte.hu>,
	Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>,
	Paul Mundt <lethal@linux-sh.org>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	Jes Sorensen <jes@sgi.com>, Tom Zanussi <zanussi@us.ibm.com>,
	Richard J Moore <richardj_moore@uk.ibm.com>,
	Michel Dagenais <michel.dagenais@polymtl.ca>,
	Christoph Hellwig <hch@infradead.org>,
	Greg Kroah-Hartman <gregkh@suse.de>,
	Thomas Gleixner <tglx@linutronix.de>,
	William Cohen <wcohen@redhat.com>,
	ltt-dev@shafik.org, systemtap@sources.redhat.com,
	Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: [PATCH] Linux Kernel Markers
Date: Wed, 20 Sep 2006 13:41:33 -0400	[thread overview]
Message-ID: <45117D4D.3040408@opersys.com> (raw)
In-Reply-To: <451141B1.40803@hitachi.com>


Hello Hiramatsu-san,

So here's a more intelligent answer than last time :)

Masami Hiramatsu wrote:
> This method is very similar to the djprobe.
> And I had gotten the same idea to support preemptive kernel.
...
> This means the below code, doesn't this?
> ---
> 	jmp 1f /* short jump consumes 2 bytes */
> 	nop
> 	nop
> 	nop
> 1:
> ---

YES, as pointed out by Mathieu, this does essentially the same.
And, yes, as mentioned earlier, this should work fine on
preemptable kernels.

> I think the djprobe can provide most of functionalities which
> your idea requires.

Indeed.

Thanks,

Karim


  parent reply	other threads:[~2006-09-20 17:31 UTC|newest]

Thread overview: 74+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-09-18 23:45 [PATCH] Linux Kernel Markers Mathieu Desnoyers
2006-09-19  0:41 ` Alan Cox
2006-09-19  1:10 ` Dave Jones
2006-09-19  8:11 ` Ingo Molnar
2006-09-19  8:13   ` Ingo Molnar
2006-09-19 15:11   ` Martin J. Bligh
2006-09-19 15:31     ` Ingo Molnar
2006-09-20 11:19       ` Andi Kleen
2006-09-19 15:46     ` Frank Ch. Eigler
2006-09-19 16:04       ` Martin Bligh
2006-09-19 16:39         ` Andrew Morton
2006-09-19 16:41           ` Martin Bligh
2006-09-19  6:38             ` S. P. Prasanna
2006-09-19 17:17               ` Martin Bligh
2006-09-19  7:05                 ` S. P. Prasanna
2006-09-19 18:02                   ` Martin Bligh
2006-09-19 21:04                     ` Karim Yaghmour
2006-09-20 13:27                       ` Masami Hiramatsu
2006-09-20 17:21                         ` Karim Yaghmour
2006-09-20 17:15                           ` Mathieu Desnoyers
2006-09-20 17:35                             ` Karim Yaghmour
2006-09-20 18:08                           ` Frank Ch. Eigler
2006-09-20 18:22                             ` Martin Bligh
2006-09-20 18:50                               ` Karim Yaghmour
2006-09-20 19:22                                 ` Martin Bligh
2006-09-20 19:43                                   ` Karim Yaghmour
2006-09-20 19:40                                     ` Martin Bligh
2006-09-20 19:58                                       ` Karim Yaghmour
2006-09-20 18:25                             ` Karim Yaghmour
2006-09-20 17:41                         ` Karim Yaghmour [this message]
2006-09-19 17:54                 ` Mathieu Desnoyers
2006-09-19 18:01                   ` Martin Bligh
2006-09-19 18:11                     ` Mathieu Desnoyers
2006-09-20  0:08                   ` Alan Cox
2006-09-20  0:52                     ` Karim Yaghmour
2006-09-20 10:44                       ` Alan Cox
2006-09-20 23:00                         ` Richard J Moore
2006-09-23 15:34                           ` score-boarding [was Re: [PATCH] Linux Kernel Markers] Hugh Dickins
2006-09-26  8:43                             ` Richard J Moore
2006-09-20  1:08                     ` [PATCH] Linux Kernel Markers S. P. Prasanna
2006-09-20  8:18                       ` Richard J Moore
2006-09-20 10:32                         ` Alan Cox
2006-09-20 11:50                           ` Andi Kleen
2006-09-20 13:45                           ` Richard J Moore
2006-09-22 12:33                         ` Pavel Machek
2006-09-20  1:09                     ` Mathieu Desnoyers
2006-09-19 19:13                 ` Vara Prasad
2006-09-19 19:16                   ` Mathieu Desnoyers
2006-09-19 19:24                     ` Martin Bligh
2006-09-19 22:27                     ` Satoshi Oshima
2006-09-19 19:26                   ` Martin Bligh
2006-09-19  9:30                     ` S. P. Prasanna
2006-09-19 20:12                       ` Mathieu Desnoyers
2006-09-20 11:00                       ` Masami Hiramatsu
2006-09-20  9:39               ` Helge Hafting
2006-09-20 10:30                 ` Alan Cox
2006-09-20 13:23                   ` Masami Hiramatsu
2006-09-19 16:36             ` Ingo Molnar
2006-09-19 16:41         ` Richard J Moore
2006-09-19 16:49         ` Frank Ch. Eigler
2006-09-19 16:52           ` Martin Bligh
2006-09-19 17:02             ` Frank Ch. Eigler
2006-09-19 16:06     ` Vara Prasad
2006-09-19 16:14       ` Martin Bligh
2006-09-19 17:43       ` Mathieu Desnoyers
2006-09-19 16:23     ` Karim Yaghmour
2006-09-19 16:17       ` Martin Bligh
2006-09-19 16:29         ` Karim Yaghmour
2006-09-19 16:55         ` Karim Yaghmour
2006-09-19 17:41     ` Mathieu Desnoyers
2006-09-20 17:33     ` Karim Yaghmour
2006-09-19 15:21 ` Frank Ch. Eigler
2006-09-20 13:20 ` Masami Hiramatsu
2006-09-20 13:32   ` Mathieu Desnoyers

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