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From: Andi Kleen <andi@firstfloor.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Vince Weaver <vincent.weaver@maine.edu>,
	Dave Jones <davej@redhat.com>,
	Linux Kernel <linux-kernel@vger.kernel.org>,
	Ingo Molnar <mingo@redhat.com>, Paul Mackerras <paulus@samba.org>,
	Steven Rostedt <rostedt@goodmis.org>
Subject: Re: x86_pmu_start WARN_ON.
Date: Thu, 20 Feb 2014 09:31:19 -0800	[thread overview]
Message-ID: <87mwhld72w.fsf@tassilo.jf.intel.com> (raw)
In-Reply-To: <20140220155416.GH9987@twins.programming.kicks-ass.net> (Peter Zijlstra's message of "Thu, 20 Feb 2014 16:54:16 +0100")

Peter Zijlstra <peterz@infradead.org> writes:
>
> It will; trace_printk() works without -pg, I think you didn't read the
> instructions very well.

Ok, you enable and disable it again.  I won't guess why you do that.

>
> And there's a very good reason not to apply your patch; you can route
> the function tracer into perf, guess what happens when perf calls the
> function tracer again :-)

How? 

-Andi

-- 
ak@linux.intel.com -- Speaking for myself only

  reply	other threads:[~2014-02-20 17:31 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-30 19:02 x86_pmu_start WARN_ON Dave Jones
2014-02-10 21:26 ` Vince Weaver
2014-02-11 13:29   ` Peter Zijlstra
2014-02-12 21:04     ` Vince Weaver
2014-02-13 14:11       ` Vince Weaver
2014-02-13 17:35         ` Vince Weaver
2014-02-13 22:13           ` Vince Weaver
2014-02-17 15:28             ` Peter Zijlstra
2014-02-18 18:30               ` Vince Weaver
2014-02-18 22:20                 ` Vince Weaver
2014-02-19 10:19                   ` Peter Zijlstra
2014-02-19 22:34                     ` Vince Weaver
2014-02-20 10:08                       ` Peter Zijlstra
2014-02-20 15:47                         ` Andi Kleen
2014-02-20 15:54                           ` Peter Zijlstra
2014-02-20 17:31                             ` Andi Kleen [this message]
2014-02-20 18:15                               ` Peter Zijlstra
2014-02-20 18:23                                 ` Andi Kleen
2014-02-20 19:04                                 ` Steven Rostedt
2014-02-20 16:26                         ` Steven Rostedt
2014-02-20 17:00                           ` Peter Zijlstra
2014-02-20 17:43                             ` Steven Rostedt
2014-02-20 17:46                               ` Steven Rostedt
2014-02-20 18:18                                 ` Peter Zijlstra
2014-02-20 18:03                         ` Vince Weaver
2014-02-20 18:23                           ` Peter Zijlstra
2014-02-20 18:54                             ` Vince Weaver
2014-02-20 19:21                               ` Vince Weaver
2014-02-20 19:46                                 ` Vince Weaver
2014-02-21 14:37                                   ` Vince Weaver
2014-02-21 15:03                             ` Peter Zijlstra
2014-02-21 20:18                               ` Vince Weaver
2014-02-24 11:28                                 ` Peter Zijlstra
2014-02-26  5:59                                   ` Vince Weaver
2014-02-27 13:32                               ` [tip:perf/core] perf/x86: Fix event scheduling tip-bot for Peter Zijlstra

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