Index: sys/kern/vfs_aio.c
===================================================================
--- sys/kern/vfs_aio.c
+++ sys/kern/vfs_aio.c
@@ -2246,6 +2246,7 @@
 	lj->lioj_flags = 0;
 	lj->lioj_count = 0;
 	lj->lioj_finished_count = 0;
+	lj->lioj_signal.sigev_notify = SIGEV_NONE;
 	knlist_init_mtx(&lj->klist, AIO_MTX(ki));
 	ksiginfo_init(&lj->lioj_ksi);
 
Index: tests/sys/aio/lio_test.c
===================================================================
--- tests/sys/aio/lio_test.c
+++ tests/sys/aio/lio_test.c
@@ -133,6 +133,15 @@
 	ATF_REQUIRE_EQ(0, lio_listio(LIO_WAIT, &list, 0, NULL));
 }
 
+/* With LIO_NOWAIT, an empty lio_listio should return immediately */
+ATF_TC_WITHOUT_HEAD(lio_listio_empty_nowait);
+ATF_TC_BODY(lio_listio_empty_nowait, tc)
+{
+	struct aiocb *list = NULL;
+
+	ATF_REQUIRE_EQ(0, lio_listio(LIO_NOWAIT, &list, 0, NULL));
+}
+
 /*
  * With LIO_NOWAIT, an empty lio_listio should send completion notification
  * immediately
@@ -253,6 +262,7 @@
 {
 
 	ATF_TP_ADD_TC(tp, lio_listio_eagain_kevent);
+	ATF_TP_ADD_TC(tp, lio_listio_empty_nowait);
 	ATF_TP_ADD_TC(tp, lio_listio_empty_nowait_kevent);
 	ATF_TP_ADD_TC(tp, lio_listio_empty_nowait_signal);
 	ATF_TP_ADD_TC(tp, lio_listio_empty_nowait_thread);