linux-kernel - Re: mailing list for trace users

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Message-Id: <1253618894.13917.18.camel@marge.simson.net>
Date:	Tue, 22 Sep 2009 13:28:14 +0200
From:	Mike Galbraith <efault@....de>
To:	Avi Kivity <avi@...hat.com>
Cc:	rostedt@...dmis.org, LKML <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>,
	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Masami Hiramatsu <mhiramat@...hat.com>,
	postmaster@...r.kernel.org
Subject: Re: mailing list for trace users

On Tue, 2009-09-22 at 12:13 +0300, Avi Kivity wrote:

> $ perf annotate -k ~avi/kvm/linux-2.6/vmlinux -m vmx_vcpu_run
>   Error: symbol 'vmx_vcpu_run' not present amongst the samples.
> 
> builtin symbols work.

Ah.  Did you reboot or unload/load the module between record and
annotate time?  There is no support for that at the moment.

There has been talk of eventually putting all pertinent data into
perf.data to support remote analysis etc, but as things stand, module
information is only available for the running kernel.

	-Mike

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