1 files changed, 11 insertions, 1 deletions

diff --git a/sys/kern/tty.c b/sys/kern/tty.c
index 82907accb039..33c75a06822b 100644
--- a/sys/kern/tty.c
+++ b/sys/kern/tty.c
@@ -36,7 +36,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)tty.c	8.8 (Berkeley) 1/21/94
- * $Id: tty.c,v 1.29 1995/02/22 23:20:51 ache Exp $
+ * $Id: tty.c,v 1.28 1995/02/15 22:25:51 ache Exp $
  */
 
 #include "snp.h"
@@ -1083,6 +1083,16 @@ ttyflush(tp, rw)
 		wakeup((caddr_t)&tp->t_outq);
 		selwakeup(&tp->t_wsel);
 	}
+	if ((rw & FREAD) &&
+	    ISSET(tp->t_state, TS_TBLOCK) && tp->t_rawq.c_cc < TTYHOG/5) {
+		if (ISSET(tp->t_iflag, IXOFF) &&
+		    tp->t_cc[VSTART] != _POSIX_VDISABLE &&
+		    putc(tp->t_cc[VSTART], &tp->t_outq) == 0 ||
+		    ISSET(tp->t_cflag, CRTS_IFLOW)) {
+			CLR(tp->t_state, TS_TBLOCK);
+			ttstart(tp);
+		}
+	}
 	splx(s);
 }