From e3ce592ab93ac01bc17df9cb9c6637233e602810 Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Sat, 1 Feb 1992 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 1992-02-01

---
 gnot/fault68020.c | 3 ++-
 gnot/trap.c       | 2 +-
 port/devmux.c     | 2 +-
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/gnot/fault68020.c b/gnot/fault68020.c
index f717eedbd7aa310165514c1553ebb79b63a3bb06..a07712c67ada0f8b5958665b202b6a04d176e0e1 100644
--- a/gnot/fault68020.c
+++ b/gnot/fault68020.c
@@ -55,7 +55,6 @@ fault68020(Ureg *ur, FFrame *f)
 	}
 	insyscall = u->p->insyscall;
 	u->p->insyscall = 1;
-	u->dbgreg = ur;
 	addr = 0;	/* set */
 	if(f->ssw & DF)
 		addr = f->addr;
@@ -80,6 +79,8 @@ fault68020(Ureg *ur, FFrame *f)
 	badvaddr = addr;
 	addr &= ~(BY2PG-1);
 	user = !(ur->sr&SUPER);
+	if(user)
+		u->dbgreg = ur;
 
 	if(f->ssw & DF)
 		read = (f->ssw&READ) && !(f->ssw&RM);
diff --git a/gnot/trap.c b/gnot/trap.c
index 40bc63c28c40cd9d220648d6a9a99a4a21d2bbb2..72cddfce5355988ff545208762ca57c5e79030bc 100644
--- a/gnot/trap.c
+++ b/gnot/trap.c
@@ -322,7 +322,7 @@ syscall(Ureg *aur)
 			error(Ebadarg);
 		}
 		if(sp & (BY2WD-1)){
-			pprint("odd sp in sys call pc %lux sp %lux\n", 
+			pprint("odd sp in sys call pc %lux sp %lux\n",
 				((Ureg*)UREGADDR)->pc, ((Ureg*)UREGADDR)->sp);
 			msg = "sys: odd stack";
 			goto Bad;
diff --git a/port/devmux.c b/port/devmux.c
index 01b3a2937f0a0f80363eb3437495163a418a0c1f..45cce58faeb8afce7ad8c292733616fa958b7641 100644
--- a/port/devmux.c
+++ b/port/devmux.c
@@ -135,7 +135,7 @@ muxattach(char *spec)
 {
 	Chan *c;
 
-	c = devattach('m', spec);
+	c = devattach('s', spec);
 	c->qid.path = CHDIR|Qdir;
 	return c;
 }