K 10 svn:author V 5 markm K 8 svn:date V 27 2013-10-08T18:48:11.617936Z K 7 svn:log V 259 Time to eat crow for me. I replaced the sx_* locks that Arthur used with regular mutexes; this turned out the be the wrong thing to do as the locks need to be sleepable. Revert this folly. Submitted by: Arthur Mesh (In original diff) END