Subject: Re: 2.6.14-rt1: oprofile doesn't work anymore
From: Lee Revell <rlrevell@joe-job.com>
To: linux-kernel <linux-kernel@vger.kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>
In-Reply-To: <1131060132.4770.2.camel@mindpipe>
References: <1131053974.23154.9.camel@mindpipe>
	 <1131060132.4770.2.camel@mindpipe>
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Date: Sun, 06 Nov 2005 13:45:59 -0500
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On Thu, 2005-11-03 at 18:22 -0500, Lee Revell wrote:
> I just tested this with oprofile both built into the kernel and as a
> module, and with oprofile userspace tools 0.9.1 and from CVS.  No
> change.  I have verified that /dev/oprofile is mounted.  It looks like
> the profiler never sees any samples.
> 
> rlrevell@mindpipe:~$ cat /dev/oprofile/stats/cpu0/sample_received 
> 0
> 
> Could one of the ktimers changes have broken the timer interrupt based
> profiling?

I have verified that oprofile does work with 2.6.14.  So the breakage is
unique to the -rt kernel.

Lee

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