diff --git a/etc/etc.sparc64/ttys b/etc/etc.sparc64/ttys
index c29162d1d38..b974db7b90a 100644
--- a/etc/etc.sparc64/ttys
+++ b/etc/etc.sparc64/ttys
@@ -35,9 +35,6 @@ console	none				unknown	off secure
 screen	"/usr/libexec/getty Pc"		vt100	off secure
 ttya	"/usr/libexec/getty 3wire.9600"	vt100	off secure
 ttyb	"/usr/libexec/getty 3wire.9600"	vt100	off secure
-# sab(4)
-ttyz0	"/usr/libexec/getty 3wire.9600"	vt100	off secure
-ttyz1	"/usr/libexec/getty 3wire.9600"	vt100	off secure
 # syscons(4)
 ttyv0	"/usr/libexec/getty Pc"		cons25	on  secure
 # Virtual terminals
diff --git a/sys/kern/subr_witness.c b/sys/kern/subr_witness.c
index 6223a9da826..d797e36b31d 100644
--- a/sys/kern/subr_witness.c
+++ b/sys/kern/subr_witness.c
@@ -382,7 +382,6 @@ static struct witness_order_list_entry order_lists[] = {
 #endif
 	{ "scc_hwmtx", &lock_class_mtx_spin },
 	{ "uart_hwmtx", &lock_class_mtx_spin },
-	{ "sabtty", &lock_class_mtx_spin },
 	{ "zstty", &lock_class_mtx_spin },
 	{ "ng_node", &lock_class_mtx_spin },
 	{ "ng_worklist", &lock_class_mtx_spin },