K 10
svn:author
V 4
jkim
K 8
svn:date
V 27
2011-04-14T17:50:26.098721Z
K 7
svn:log
V 354
Work around an emulator problem where virtual CPU advertises TSC is P-state
invariant and APERF/MPERF MSRs exist but these MSRs never tick.  When we
calculate effective frequency from cpu_est_clockrate(), it caused panic of
division-by-zero.  Now we test whether these MSRs actually increase to avoid
such foot-shooting.

Reported by:	dim
Tested by:	dim

END