3 files changed, 6 insertions(+), 2 deletions(-)

M port/devlance.c
M port/devproc.c
M port/proc.c

@@ 348,10 348,10 @@ lanceoput(Queue *q, Block *bp )
 	tsleep(&l.tr, isobuf, (void *)0, 1000);
 	if(isobuf(0) == 0 || l.misses > 4){
 		l.misses = 0;
-		print("lance wedged, restarting\n");
+print("lance wedged, restarting\n");
 		lancestart(0, 0);
-		qunlock(&l.tlock);
 		freeb(bp);
+		poperror();
 		return;		/* the interrupt routine will qunlock(&l.tlock) */
 	}
 	p = &l.tp[l.tc];

@@ 330,6 330,8 @@ procread(Chan *c, void *va, long n, ulong offset)
 			return 0;
 		if(offset+n > STATSIZE)
 			n = STATSIZE - offset;
+if((p->state < Dead) || (p->state > Rendezvous))
+    panic("p->state=#%lux, p->psstate=#%lux\n", p->state, p->psstate);
 		j = sprint(statbuf, "%-27s %-27s %-11s ",
 			p->text, p->user, p->psstate ? p->psstate : statename[p->state]);
 		for(i=0; i<6; i++){

@@ 641,6 641,8 @@ pwait(Waitmsg *w)
 Proc*
 proctab(int i)
 {
+if((i < 0) || (i >= conf.nproc))
+    panic("proctab(%d)\n", i);
 	return &procalloc.arena[i];
 }