unhandled wrmsr

[Ross Boylan <ross@biostat.ucsf.edu>]

I built from qemu-kvm-0.13.0.tar.gz on a Debian system with kernel
linux-image-2.6.32-5-amd64                2.6.32-26
(but otherwise basically the stable/lenny version) and now see
Oct 26 16:57:38 markov kernel: [ 5757.672426] kvm: 23063: cpu0 unhandled wrmsr: 0x198 data 0
Oct 26 16:57:38 markov kernel: [ 5757.672454] kvm: 23063: cpu1 unhandled wrmsr: 0x198 data 0
Oct 26 16:57:38 markov kernel: [ 5757.672476] kvm: 23063: cpu2 unhandled wrmsr: 0x198 data 0
Oct 26 16:57:38 markov kernel: [ 5757.672497] kvm: 23063: cpu3 unhandled wrmsr: 0x198 data 0
on startup.  I have 4 CPUs with 8 cores:
Intel(R) Xeon(R) CPU           E5420  @ 2.50GHz stepping 06.
Note this means the kernel side is from the Debian package, and so might
be older.

google shows this message has popped up several times in the past and
been fixed several times.  Most of the messages indicate it is harmless,
but https://bugs.launchpad.net/ubuntu/+source/linux/+bug/325851 on
2009-07-01 says it's "not benign".  There also seems to be a current bug
open about it,
http://sourceforge.net/tracker/index.php?func=detail&aid=3056363&group_id=180599&atid=893831, which is also marked as fixed.

Can anyone tell me anything more about these messages?  Do they indicate
a problem I need to fix?  If so, any advice on how to fix it?

Thanks.
Ross

P.S. Please cc me on reply.