from netbsd:

Prevent the ITE_ACTIVE bit from being cleared in iteoff() if the ITE_ISCONS
bit is set.  Works around the fact that the last process to have the
console open exits, the bit is cleared, and "syncing disks...", etc. is
not seen if the system is rebooted with reboot(8).  Fixes PR #1455.

2 files changed, 27 insertions, 19 deletions

diff --git a/sys/arch/hp300/dev/ite.c b/sys/arch/hp300/dev/ite.c
index f42d3cf0265..2d5f4d46b5a 100644
--- a/sys/arch/hp300/dev/ite.c
+++ b/sys/arch/hp300/dev/ite.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: ite.c,v 1.27 1995/04/19 19:15:51 mycroft Exp $	*/
+/*	$NetBSD: ite.c,v 1.27.2.1 1995/11/19 23:18:27 thorpej Exp $	*/
 
 /*
  * Copyright (c) 1988 University of Utah.
@@ -128,7 +128,7 @@ iteon(dev, flag)
 	dev_t dev;
 	int flag;
 {
-	int unit = UNIT(dev);
+	int unit = ITEUNIT(dev);
 	struct tty *tp = ite_tty[unit];
 	struct ite_softc *ip = &ite_softc[unit];
 
@@ -159,7 +159,7 @@ iteon(dev, flag)
 iteinit(dev)
      dev_t dev;
 {
-	int unit = UNIT(dev);
+	int unit = ITEUNIT(dev);
 	struct ite_softc *ip = &ite_softc[unit];
 
 	if (ip->flags & ITE_INITED)
@@ -194,7 +194,7 @@ iteoff(dev, flag)
 	dev_t dev;
 	int flag;
 {
-	register struct ite_softc *ip = &ite_softc[UNIT(dev)];
+	register struct ite_softc *ip = &ite_softc[ITEUNIT(dev)];
 
 	if (flag & 2) {
 		ip->flags |= ITE_INGRF;
@@ -205,7 +205,15 @@ iteoff(dev, flag)
 	if ((flag & 1) ||
 	    (ip->flags & (ITE_INGRF|ITE_ISCONS|ITE_INITED)) == ITE_INITED)
 		(*ip->isw->ite_deinit)(ip);
-	if ((flag & 2) == 0)
+
+	/*
+	 * XXX When the system is rebooted with "reboot", init(8)
+	 * kills the last process to have the console open.
+	 * If we don't revent the the ITE_ACTIVE bit from being
+	 * cleared, we will never see messages printed during
+	 * the process of rebooting.
+	 */
+	if ((flag & 2) == 0 && (ip->flags & ITE_ISCONS) == 0)
 		ip->flags &= ~ITE_ACTIVE;
 }
 
@@ -216,7 +224,7 @@ iteopen(dev, mode, devtype, p)
 	int mode, devtype;
 	struct proc *p;
 {
-	int unit = UNIT(dev);
+	int unit = ITEUNIT(dev);
 	register struct tty *tp;
 	register struct ite_softc *ip = &ite_softc[unit];
 	register int error;
@@ -264,14 +272,14 @@ iteclose(dev, flag, mode, p)
 	int flag, mode;
 	struct proc *p;
 {
-	register struct tty *tp = ite_tty[UNIT(dev)];
+	register struct tty *tp = ite_tty[ITEUNIT(dev)];
 
 	(*linesw[tp->t_line].l_close)(tp, flag);
 	ttyclose(tp);
 	iteoff(dev, 0);
 #if 0
 	ttyfree(tp);
-	ite_tty[UNIT(dev)] = (struct tty *)0;
+	ite_tty[ITEUNIT(dev)] = (struct tty *)0;
 #endif
 	return(0);
 }
@@ -282,7 +290,7 @@ iteread(dev, uio, flag)
 	struct uio *uio;
 	int flag;
 {
-	register struct tty *tp = ite_tty[UNIT(dev)];
+	register struct tty *tp = ite_tty[ITEUNIT(dev)];
 
 	return ((*linesw[tp->t_line].l_read)(tp, uio, flag));
 }
@@ -293,7 +301,7 @@ itewrite(dev, uio, flag)
 	struct uio *uio;
 	int flag;
 {
-	register struct tty *tp = ite_tty[UNIT(dev)];
+	register struct tty *tp = ite_tty[ITEUNIT(dev)];
 
 	return ((*linesw[tp->t_line].l_write)(tp, uio, flag));
 }
@@ -303,7 +311,7 @@ itetty(dev)
 	dev_t dev;
 {
 
-	return (ite_tty[UNIT(dev)]);
+	return (ite_tty[ITEUNIT(dev)]);
 }
 
 int
@@ -314,7 +322,7 @@ iteioctl(dev, cmd, addr, flag, p)
 	int flag;
 	struct proc *p;
 {
-	register struct tty *tp = ite_tty[UNIT(dev)];
+	register struct tty *tp = ite_tty[ITEUNIT(dev)];
 	int error;
 
 	error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, addr, flag, p);
@@ -371,7 +379,7 @@ itestart(tp)
 		 * Turn off cursor while we output multiple characters.
 		 * Saves a lot of expensive window move operations.
 		 */
-		ip = &ite_softc[UNIT(tp->t_dev)];
+		ip = &ite_softc[ITEUNIT(tp->t_dev)];
 		if (ip->flags & ITE_CURSORON) {
 			ite_erasecursor(ip, ip->isw);
 			ip->flags &= ~ITE_CURSORON;
@@ -464,7 +472,7 @@ iteputchar(c, dev)
 	register int c;
 	dev_t dev;  
 {
-	int unit = UNIT(dev);
+	int unit = ITEUNIT(dev);
 	register struct ite_softc *ip = &ite_softc[unit];
 	register struct itesw *sp = ip->isw;
 	register int n;
@@ -906,12 +914,12 @@ void
 itecninit(cp)
 	struct consdev *cp;
 {
-	int unit = UNIT(cp->cn_dev);
+	int unit = ITEUNIT(cp->cn_dev);
 	struct ite_softc *ip = &ite_softc[unit];
 
 	ip->attrbuf = console_attributes;
 	iteinit(cp->cn_dev);
-	ip->flags |= (ITE_ACTIVE|ITE_ISCONS);
+	ip->flags |= (ITE_ACTIVE | ITE_ISCONS);
 	kbd_ite = ip;
 }
 
@@ -947,7 +955,7 @@ itecnputc(dev, c)
 	int c;
 {
 	static int paniced = 0;
-	struct ite_softc *ip = &ite_softc[UNIT(dev)];
+	struct ite_softc *ip = &ite_softc[ITEUNIT(dev)];
 
 	if (panicstr && !paniced &&
 	    (ip->flags & (ITE_ACTIVE|ITE_INGRF)) != ITE_ACTIVE) {
diff --git a/sys/arch/hp300/dev/itevar.h b/sys/arch/hp300/dev/itevar.h
index bdc21c308c7..97fbaffa2ed 100644
--- a/sys/arch/hp300/dev/itevar.h
+++ b/sys/arch/hp300/dev/itevar.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: itevar.h,v 1.7 1995/03/28 18:16:12 jtc Exp $	*/
+/*	$NetBSD: itevar.h,v 1.7.2.1 1995/11/19 23:18:31 thorpej Exp $	*/
 
 /*
  * Copyright (c) 1988 University of Utah.
@@ -42,7 +42,7 @@
  *	@(#)itevar.h	8.1 (Berkeley) 6/10/93
  */
 
-#define UNIT(dev)       minor(dev)
+#define ITEUNIT(dev)       minor(dev)
 
 struct itesw {
 	int	ite_hwid;		/* Hardware id */