K 10 svn:author V 3 kib K 8 svn:date V 27 2011-11-23T15:03:15.433270Z K 7 svn:log V 259 MFC r227657: Consistently use process spin lock for protection of the p->p_boundary_count. Race could cause the execve(2) from the threaded process to hung since thread boundary counter was incorrect and single-threading never finished. Approved by: re (bz) END