db.fsync2.drop();

d = db.getSisterDB( "admin" );

assert.commandWorked( d.runCommand( {fsync:1, lock: 1 } ) );

// uncomment when fixed SERVER-519
db.fsync2.save( {x:1} );

m = new Mongo( db.getMongo().host );

assert( m.getDB("admin").$cmd.sys.unlock.findOne().ok );

// uncomment when fixed SERVER-519
assert.eq( 1, db.fsync2.count() );