Index: head/sys/kern/kern_event.c
===================================================================
--- head/sys/kern/kern_event.c
+++ head/sys/kern/kern_event.c
@@ -600,10 +600,10 @@
 			kn->kn_fflags |= NOTE_TRACKERR;
 		if (kn->kn_fop->f_event(kn, NOTE_FORK))
 			KNOTE_ACTIVATE(kn, 0);
+		list->kl_lock(list->kl_lockarg);
 		KQ_LOCK(kq);
 		kn_leave_flux(kn);
 		KQ_UNLOCK_FLUX(kq);
-		list->kl_lock(list->kl_lockarg);
 	}
 	list->kl_unlock(list->kl_lockarg);
 }