K 10 svn:author V 4 jeff K 8 svn:date V 27 2020-01-31T22:21:15.948686Z K 7 svn:log V 315 Add two missing fences with comments describing them. These were found by inspection and after a lengthy discussion with jhb and kib. They have not produced test failures. Don't pointer chase through cpu0's smr. Use cpu correct smr even when not in a critical section to reduce the likelihood of false sharing. END