const runtime.waitReasonGCMarkTermination

3 uses

	runtime (current package)
		mgc.go#L836: 		casGToWaiting(gp, _Grunning, waitReasonGCMarkTermination)
		runtime2.go#L1088: 	waitReasonGCMarkTermination                       // "GC mark termination"
		runtime2.go#L1123: 	waitReasonGCMarkTermination:     "GC mark termination",