// might call into the tracer, and the tracer is non-reentrant.
		trace := traceAcquire()
		if s == _Psyscall && p2.runSafePointFn == 1 && atomic.Cas(&p2.status, s, _Pidle) {
			if trace.ok() {
				// It's important that we traceRelease before we call handoffp, which may also traceAcquire.
				trace.ProcSteal(p2, false)
				traceRelease(trace)
			}
			p2.syscalltick++
			handoffp(p2)