2 files changed, 6 insertions(+), 5 deletions(-)

M gnot/main.c
M port/devbit.c

@@ 246,9 246,9 @@ confinit(void)
 	conf.npgenv = 200;
 	conf.nmtab = 50;
 	conf.nmount = 100;
-	conf.nmntdev = 5;
-	conf.nmntbuf = 10;
-	conf.nmnthdr = 10;
+	conf.nmntdev = 10;
+	conf.nmntbuf = 20;
+	conf.nmnthdr = 20;
 	conf.nstream = 64;
 	conf.nqueue = 5 * conf.nstream;
 	conf.nblock = 12 * conf.nstream;

@@ 191,9 191,10 @@ bitopen(Chan *c, int omode)
 		}
 		bit.lastid = -1;
 		bit.init = 1;
+		bit.ref = 1;
 		unlock(&bit);
+	}else
 		incref(&bit);
-	}
 	c->mode = openmode(omode);
 	c->flag |= COPEN;
 	c->offset = 0;


@@ 224,7 225,7 @@ bitclose(Chan *c)
 	int i;
 	Bitmap *bp;
 
-	if(c->qid != CHDIR){
+	if(c->qid!=CHDIR && (c->flag&COPEN)){
 		lock(&bit);
 		if(--bit.ref == 0){
 			for(i=1,bp=&bit.map[1]; i<conf.nbitmap; i++,bp++)