K 10
svn:author
V 10
nwhitehorn
K 8
svn:date
V 27
2011-06-23T04:35:45.172822Z
K 7
svn:log
V 269
Use atomic operations to mask and unmask IRQs. This prevents a problem
(obvious in retrospect) in which interrupts on one CPU that are temporarily
masked can end up permanently masked when a handler on another CPU clobbers
the interrupt mask register with an old copy.

END