case traceGoRunning, traceGoSyscall:
				if getg() == gp || mp.curg == gp {
					break
				}
				fallthrough
			default:
				print("runtime: gp=", unsafe.Pointer(gp), " gp.goid=", gp.goid, " status=", gStatusStrings[status], "\n")
				throw("attempted to trace stack of a goroutine this thread does not own")
			}
		}
	}

	if gp != nil && mp == nil {
		// We're getting the backtrace for a G that's not currently executing.

	isScan := gpstatus&_Gscan != 0
	gpstatus &^= _Gscan // drop the scan bit

	// Basic string status
	var status string
	if 0 <= gpstatus && gpstatus < uint32(len(gStatusStrings)) {
		status = gStatusStrings[gpstatus]
	} else {
		status = "???"
	}

	// Override.
	if gpstatus == _Gwaiting && gp.waitreason != waitReasonZero {
		status = gp.waitreason.String()
	}