From: Stephane Eranian <eranian@hpl.hp.com>
To: Andi Kleen <ak@suse.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH 10/18] 2.6.17.9 perfmon2 patch for review: PMU context switch support
Date: Fri, 25 Aug 2006 05:56:33 -0700 [thread overview]
Message-ID: <20060825125633.GE5330@frankl.hpl.hp.com> (raw)
In-Reply-To: <200608251420.31564.ak@suse.de>
On Fri, Aug 25, 2006 at 02:20:31PM +0200, Andi Kleen wrote:
> On Friday 25 August 2006 13:56, Stephane Eranian wrote:
>
> > > I suppose some of those functions must be marked __kprobes
> > >
> > Are there any guidelines as to why some functions must be ignored
> > by kprobes? I assume if meaans they cannot be instrumented.
>
> It does yes.
>
> In general anything that could cause kprobes to recurse is forbidden.
In the case of the PMU context switch, are you saying that you may
context switch as a consequence of hitting a (K)probe?
--
-Stephane
next prev parent reply other threads:[~2006-08-25 13:09 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-23 8:06 [PATCH 10/18] 2.6.17.9 perfmon2 patch for review: PMU context switch support Stephane Eranian
2006-08-23 10:29 ` Andi Kleen
2006-08-25 11:56 ` Stephane Eranian
2006-08-25 12:20 ` Andi Kleen
2006-08-25 12:56 ` Stephane Eranian [this message]
2006-08-25 13:17 ` Andi Kleen
2006-08-23 22:57 ` Andrew Morton
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