return true
	}

	// sp is not within gsignal stack, g0 stack, or sigaltstack. Bad.
	setg(nil)
	needm(true)
	if st.ss_flags&_SS_DISABLE != 0 {
		noSignalStack(sig)
	} else {
		sigNotOnStack(sig, sp, mp)
	}
	dropm()
	return false
}

// crashing is the number of m's we have waited for when implementing
// GOTRACEBACK=crash when a signal is received.
var crashing atomic.Int32