linux-kernel - Re: [PATCH] tracer for sys_open()

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Message-ID: <20090205074740.224f7b1f@infradead.org>
Date:	Thu, 5 Feb 2009 07:47:40 -0800
From:	Arjan van de Ven <arjan@...radead.org>
To:	Bill Nottingham <notting@...hat.com>
Cc:	Harald Hoyer <harald@...hat.com>, linux-kernel@...r.kernel.org,
	power@...host.org
Subject: Re: [PATCH] tracer for sys_open() - sreadahead

On Thu, 5 Feb 2009 10:24:42 -0500
Bill Nottingham <notting@...hat.com> wrote:

> Arjan van de Ven (arjan@...radead.org) said: 
> > you can strace init but you can't strace X
> > (at least... last I tried it locked my box ;0)
> 
> You should be able to strace X, as long as you're not doing it *from*
> X.
> 
last I tried it b0rked (yeah I'm not stupid enuogh to do that from X,
at least not a second time ;-)

another issue with the "use strace" approach is selinux... 
(this is in addition to the performance and behavioral changes)
-- 
Arjan van de Ven 	Intel Open Source Technology Centre
For development, discussion and tips for power savings, 
visit http://www.lesswatts.org

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