const runtime._Gcopystack

6 uses

	runtime (current package)
		preempt.go#L145: 		case _Gcopystack:
		runtime2.go#L82: 	_Gcopystack // 8
		stack.go#L1112: 	casgstatus(gp, _Grunning, _Gcopystack)
		stack.go#L1120: 	casgstatus(gp, _Gcopystack, _Grunning)
		traceback.go#L1192: 	_Gcopystack: "copystack",
		tracestatus.go#L155: 	case _Grunning, _Gcopystack: