var runtime.asyncPreemptStack

5 uses

	runtime (current package)
		preempt.go#L314: var asyncPreemptStack = ^uintptr(0)
		preempt.go#L322: 	asyncPreemptStack = uintptr(total) + 8*goarch.PtrSize
		preempt.go#L323: 	if asyncPreemptStack > stackNosplit {
		preempt.go#L334: 		print("runtime: asyncPreemptStack=", asyncPreemptStack, "\n")
		preempt.go#L378: 	if sp < gp.stack.lo || sp-gp.stack.lo < asyncPreemptStack {