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Re: [Xen-devel] xenoprofile cannot run in active mode in domU

To: K L <intervalmg@xxxxxxxxx>
Subject: Re: [Xen-devel] xenoprofile cannot run in active mode in domU
From: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Date: Wed, 8 Sep 2010 11:53:50 -0400
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On Sun, Sep 05, 2010 at 10:45:00PM -0400, K L wrote:
> Dear all,
> 
> I have enable xen-3.4.2 oprofile configuration and compiled the
> oprofile-0.9.5.tar.gz with patch oprofile-0.9.5-xen.patch.
> 
> I 'scp' the xen-syms kernel and the vmlinux kernel to domU. I want to
> start the mode with:
> 
> opcontrol --start --event=CPU_CLK_UNHALTED:1000000:1:1:1 --xen
> xen-syms-3.4.2 --vmlinux=vmlinux
> 
> But it shows the result like:
> 
> testvm02:~# opcontrol --start --event=CPU_CLK_UNHALTED:1000000:1:1:1
> --xen xen-syms-3.4.2 --vmlinux=vmlinux You cannot specify any
> performance counter events
> because OProfile is in timer mode.
> 
> I have read previous thread 'Xenoprof: getting Oprofile out of timer
> mode?'(http://copilotco.com/mail-archives/xen.2006/msg12482.html). It
> seems the problem has been fixed. But why I cannot run xenoprofile in
> active mode in domU. Does it have something to do with apic?(I have
> configured in /etc/xen/testvm02.cfg with lapic)

Does it work under dom0?
> 
> My machine is HP proliant. I can provide further information if needed.
> 
> Thanks,
> Jeff
> 
> _______________________________________________
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