K 10
svn:author
V 3
bms
K 8
svn:date
V 27
2009-03-14T01:12:35.003607Z
K 7
svn:log
V 484
MFC rev: 189736
  Ensure that the semaphore value is re-checked after sem_lock
  is re-acquired, after the condition variable is signalled.

Early MFC, as the test case in the PR is fairly complete and the
submitter also re-ran test case on -STABLE. It also bites Python
fairly hard, which will otherwise try to use POSIX sems for its
internal thread synchronization; this needs more in-depth testing.

PR:		http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/127545
Reviewed by:	attilio

END