diff --git a/sys/kern/sched_ule.c b/sys/kern/sched_ule.c
--- a/sys/kern/sched_ule.c
+++ b/sys/kern/sched_ule.c
@@ -871,7 +871,8 @@
 			 */
 			TDQ_LOCK(tdq);
 			td = tdq->tdq_curthread;
-			if ((td->td_flags & TDF_IDLETD) == 0 &&
+			if (td->td_lock == TDQ_LOCKPTR(tdq) &&
+			    (td->td_flags & TDF_IDLETD) == 0 &&
 			    THREAD_CAN_MIGRATE(td)) {
 				td->td_flags |= TDF_NEEDRESCHED | TDF_PICKCPU;
 				if (high != curcpu)