linux-kernel - Re: mailing list for trace users

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Message-Id: <1253620041.13917.24.camel@marge.simson.net>
Date:	Tue, 22 Sep 2009 13:47:21 +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 14:34 +0300, Avi Kivity wrote:
> On 09/22/2009 02:28 PM, Mike Galbraith wrote:
> > 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.
> >    
> 
> No.  Still loaded and running.

Hm, must me a problem with parsing then.  If you add -v -v to the
command line it'll spit out debug data.  For vmx_vcpu_run you should see
a line like so if the module was parsed.

new symbol: ffffffffa0065a49 [00000466]: ahci_interrupt, hist: (nil), obj_start: 0x2a49

	-Mike

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