K 10
svn:author
V 3
gnn
K 8
svn:date
V 27
2010-08-05T20:40:13.835974Z
K 7
svn:log
V 279
MFC: 210621

Make sure that we clear the correct bits when we turn off
a PMC.  It was possible that we could have turned a bit on but
never cleared it.

Extend the calls to rdmsr() to all necessary functions, not
just those which previously caused a panic.

Pointed out by: jhb@

END