K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2012-02-22T20:03:51.418399Z
K 7
svn:log
V 193
Properly lock DQREF() with dqhlock. Missed locking caused counter
corruption.

Assert that the dq reference value is sane before decrementing it.

Reported and tested by:	pho
MFC after:	1 week

END