K 10
svn:author
V 3
gnn
K 8
svn:date
V 27
2012-04-09T16:14:58.573999Z
K 7
svn:log
V 199
MFC: 232612

 Properly mask off bits that are not supported in the IAP counters.
 This fixes a bug where users would see massively large counts, near
 to 2**64 -1, due to the bits not being cleared.

END