linux-kernel - Re: suspicious RCU usage (perf)

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Message-ID: <20130827091011.18ed8b59@gandalf.local.home>
Date:	Tue, 27 Aug 2013 09:10:11 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Dave Jones <davej@...hat.com>
Cc:	David Ahern <dsahern@...il.com>, paulmck@...ux.vnet.ibm.com,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: suspicious RCU usage (perf)

On Mon, 26 Aug 2013 15:49:24 -0400
Dave Jones <davej@...hat.com> wrote:


>  > Do you have /sys/kernel/debug with access permissions?
> 
> Ah, yeah, that'll be it. Good catch.
> 
> Sorry for the false alarm Steve ;)

Yeah, but it still does not explain how perf got started. Perf requires
a sys_perf_event_open() call to run.

-- Steve
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