UNIX_SHM_DMS     28281 ext/sqlite3/libsqlite/sqlite3.c       if( unixShmSystemLock(pShmNode, F_WRLCK, UNIX_SHM_DMS, 1)==SQLITE_OK ){
UNIX_SHM_DMS     28287 ext/sqlite3/libsqlite/sqlite3.c         rc = unixShmSystemLock(pShmNode, F_RDLCK, UNIX_SHM_DMS, 1);