diff --git a/checkstat.sh b/checkstat.sh
index 861a48e..96bcbef 100644
--- a/checkstat.sh
+++ b/checkstat.sh
@@ -11,5 +11,6 @@ do
 		state=$(cat /sys/block/$disk/device/state)
 		echo "$disk $state $iorequest_cnt $iodone_cnt"
 	done
+	ps aux | grep -w sh | grep D
 	sleep $1
 done
diff --git a/loop.sh b/loop.sh
index ebc0fd4..56738dc 100644
--- a/loop.sh
+++ b/loop.sh
@@ -8,7 +8,7 @@ function add_fio()
 	do
 		fio_cnt=$(ps aux | grep fio -c)
 		if [ $fio_cnt -gt 150 ]; then
-			echo "$fio_cnt larger than 50, do not add"
+			echo "$fio_cnt larger than 150, do not add"
 			continue
 		fi
 		for dev in `lsscsi | grep scsi_debug | awk '{print $6}'`