}

		// We'll releasem after this point and thus this P may run
		// something else. We must clear the worker mode to avoid
		// attributing the mode to a different (non-worker) G in
		// traceGoStart.
		pp.gcMarkWorkerMode = gcMarkWorkerNotWorker

		// If this worker reached a background mark completion
		// point, signal the main GC goroutine.
		if incnwait == work.nproc && !gcMarkWorkAvailable(nil) {