diff --git a/arch/i386/oprofile/op_model_ppro.c b/arch/i386/oprofile/op_model_ppro.c
index f88e05b..ca2447e 100644
--- a/arch/i386/oprofile/op_model_ppro.c
+++ b/arch/i386/oprofile/op_model_ppro.c
@@ -138,11 +138,14 @@
 static void ppro_start(struct op_msrs const * const msrs)
 {
 	unsigned int low,high;
+	int i;
 
-	if (reset_value[0]) {
-		CTRL_READ(low, high, msrs, 0);
-		CTRL_SET_ACTIVE(low);
-		CTRL_WRITE(low, high, msrs, 0);
+	for (i = 0; i < NUM_COUNTERS; ++i) {
+		if (reset_value[i]) {
+			CTRL_READ(low, high, msrs, i);
+			CTRL_SET_ACTIVE(low);
+			CTRL_WRITE(low, high, msrs, i);
+		}
 	}
 }
 
@@ -150,11 +153,14 @@
 static void ppro_stop(struct op_msrs const * const msrs)
 {
 	unsigned int low,high;
+	int i;
 
-	if (reset_value[0]) {
-		CTRL_READ(low, high, msrs, 0);
+	for (i = 0; i < NUM_COUNTERS; ++i) {
+		if (!reset_value[i])
+			continue;
+		CTRL_READ(low, high, msrs, i);
 		CTRL_SET_INACTIVE(low);
-		CTRL_WRITE(low, high, msrs, 0);
+		CTRL_WRITE(low, high, msrs, i);
 	}
 }