[PVE-User] kvm: 4288: cpu2 unimplemented perfctr wrmsr: 0xc1 data 0xffffffffff1b1e41

[Martin Maurer]

> On Tue, Mar 06, 2012 at 11:18:02AM +0100, Laurent CARON wrote:
> > On Sun, Feb 19, 2012 at 01:27:57PM +0100, Laurent CARON wrote:
> > > Hi,
> > >
> > > I'm experiencing this kind of messages:
> > > __ratelimit: 59 callbacks suppressed
> > > kvm: 4288: cpu2 unimplemented perfctr wrmsr: 0xc1 data
> > > 0xffffffffff1b1e41
> > > kvm: 4288: cpu2 unimplemented perfctr wrmsr: 0x186 data 0x5100c0
> > > kvm: 4288: cpu2 unimplemented perfctr wrmsr: 0xc1 data 0x0
> > > kvm: 4288: cpu2 unimplemented perfctr wrmsr: 0xc1 data 0x0
> > > kvm: 4288: cpu2 unimplemented perfctr wrmsr: 0x186 data 0x5100c0
> > > kvm: 4288: cpu2 unimplemented perfctr wrmsr: 0xc1 data 0x0
> > > kvm: 4288: cpu2 unimplemented perfctr wrmsr: 0xc1 data
> > > 0xffffffffff1b1e41
> > > kvm: 4288: cpu2 unimplemented perfctr wrmsr: 0x186 data 0x5100c0
> > > kvm: 4288: cpu2 unimplemented perfctr wrmsr: 0xc1 data 0x0
> > > kvm: 4288: cpu2 unimplemented perfctr wrmsr: 0xc1 data 0x0
> > >
> > > with one of my VMs (windows 2003 64bit):
> > >
> > > the $MACHINE_ID.conf is:
> > > name: kav
> > > ide2: none,media=cdrom
> > > net0: e1000=8A:26:7C:8A:C3:02,bridge=vmbr0
> > > bootdisk: ide0
> > > ostype: w2k8
> > > ide0: VG_SSD_pm-siege-001:vm-502-disk-1
> > > memory: 6144
> > > sockets: 2
> > > onboot: 0
> > > cores: 2
> > >
> > > Do you guys have a clue about it ?
> > >
> > > Might it be because I put ostype: w2k8 instead of wxp ?
> >
> > Hi,
> >
> > After migrating this machine to another host (different CPU), I don't
> > experience this issue anymore.
> >
> > Shall I report this bug to kvm bugzilla ?
> 
> Hi,
> 
> Update on this: Dell published a BIOS update for servers using E7 CPUs.
> 
> "This BIOS release resolves the potential for unpredictable system behavior in
> Dell systems running Intel(R) Xeon(R) Processor
> E7-2800/4800/8800 Series. For systems running Intel(R) Xeon(R) Processor
> E7-2800/4800/8800 Series, Dell strongly recommends applying this critical
> update as soon as possible. Systems updated with this version of BIOS or newer
> and running Intel(R) Xeon(R) Processor"
> 
> The microcode has apparently been upgraded following to a bug.
> 
> Everything is now normal and no strange error messages are showing using
> x64 windows VMs.
> 
> Thanks
> 
> Laurent

Great, thanks for feeback,
Martin