From 3dfa2f3530dafb94c5ad6eac28661aeed52a9288 Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Sun, 29 Aug 1993 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 1993-08-29

---
 port/devcons.c |  1 +
 port/fault.c   | 10 +++++-----
 port/proc.c    |  3 ++-
 port/sysproc.c |  2 +-
 4 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/port/devcons.c b/port/devcons.c
index baca6c50f79c2766b657ee8e750eaa2acc76c3e4..8dd9639cb6cb3656077ee9b02a423b9ad736fb61 100644
--- a/port/devcons.c
+++ b/port/devcons.c
@@ -123,6 +123,7 @@ panic(char *fmt, ...)
 	n = doprint(buf+strlen(buf), buf+sizeof(buf), fmt, (&fmt+1)) - buf;
 	buf[n] = '\n';
 	putstrn(buf, n+1);
+	prflush();
 	dumpstack();
 	exit(1);
 }
diff --git a/port/fault.c b/port/fault.c
index 2ef6098efe8335897057d638ed2abbfc48911697..3ada537df679a66cbfc4378c42f28ce6f30065ba 100644
--- a/port/fault.c
+++ b/port/fault.c
@@ -150,6 +150,11 @@ fixfault(Segment *s, ulong addr, int read, int doputmmu)
 		break;
 	}
 
+	if(s->flushme) {
+		for(i = 0; i < MAXMACH; i++)
+			(*pg)->cachectl[i] = PG_TXTFLUSH;
+	}
+
 	qunlock(&s->lk);
 
 	if(doputmmu)
@@ -191,11 +196,6 @@ pio(Segment *s, ulong addr, ulong soff, Page **p)
 	new = newpage(0, 0, addr);
 	k = kmap(new);
 	kaddr = (char*)VA(k);
-
-	if(s->flushme) {
-		for(n = 0; n < MAXMACH; n++)
-			new->cachectl[n] = PG_TXTFLUSH;
-	}
 	
 	if(loadrec == 0) {			/* This is demand load */
 		c = s->image->c;
diff --git a/port/proc.c b/port/proc.c
index 26af50ad3dd84cd436795672150219c699fa3ac5..9be89051070027560554be37a1e7f89b1a728fa2 100644
--- a/port/proc.c
+++ b/port/proc.c
@@ -157,8 +157,9 @@ loop:
 	/* p->mach==0 only when process state is saved */
 	if(p == 0 || p->mach){	
 		unlock(&runhiq);
+		/* keep off the bus (tuned for everest) */
 		if(conf.nmach > 1)
-			delay(7);	/* keep off the bus (tuned for everest) */
+			delay(7);
 		goto loop;
 	}
 	if(p->rnext == 0)
diff --git a/port/sysproc.c b/port/sysproc.c
index aeb43a1c3258a53e0e8693458b25285ee6437940..006f91d353fbd1a213f8222811604a9f7c39b4b0 100644
--- a/port/sysproc.c
+++ b/port/sysproc.c
@@ -136,7 +136,7 @@ sysrfork(ulong *arg)
 		p->egrp = up->egrp;
 		incref(p->egrp);
 	}
-
+memset(p->ltlbpid, 255, sizeof(p->ltlbpid));
 	p->hang = up->hang;
 	p->procmode = up->procmode;